Display system for substrate processing

Abstract

To appropriately issue a display command from the control device side to a plurality of individual display units without excessive signal wirings between the control device side and the individual display units.SOLUTION: A display system for substrate work includes: a plurality of individual display units which display a device state being set on the plurality of slots of a work machine for substrate; two or more display control units which perform display control by dividing the plurality of individual display units into two or more groups; a signal wiring which connects the two or more display control units in a daisy chain; a display command unit which issues display commands for the individual display units; and a communication line which connects the display command unit and the top display control unit. The display command unit transmits information, which includes all display commands for the plurality of individual display units, through the communication line to the top display control unit. Each display control unit performs the processing of: receiving information from the display command unit or the display control unit in the upstream side; controlling each individual display unit to perform display output based on information destined to each display control unit among reception information in memory-mapped I / O; and transmitting the above received information through the signal wiring to the display control unit in the downstream side.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a display system for substrate work.

Background Art

[0002] Conventionally, a substrate production system using a substrate work machine such as an electronic component mounter for mounting electronic components on a substrate has been known (see, for example, Patent Document 1). In this substrate production system, the substrate work machine has a plurality of slots in which devices such as feeders are set. Each device is detachably set in each slot.

[0003] By the way, in order for an operator to recognize whether the device set in each slot is in a normal state or an abnormal state, it is conceivable to provide a device display unit that displays the state of each device corresponding to each slot. This device display unit has an individual display unit provided individually for each device, that is, for each slot. The individual display unit indicates each state of the device using, for example, three types (green, orange, red) of LEDs, and lights up in response to an instruction from the control device on the substrate work machine main body side. Therefore, by allowing the operator to visually observe each individual display unit of the device display unit, the operator can recognize the state such as the normal state or the abnormal state for each slot, that is, for each device.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, if the control device on the substrate processing machine main body side described above is individually communicatively connected to each individual display unit, there is a risk that the signal wiring connecting the control device and the individual display unit will become excessive.

[0006] This specification aims to provide a display system for substrate processing operations that can appropriately issue display commands from the control device side to a plurality of individual display units without excessive signal wiring between the control device side and the individual display units.

Means for Solving the Problem

[0007] This specification corresponds to a plurality of slots provided in a substrate processing machine, each slot having a device set therein, and a plurality of individual display units for displaying the states of the devices set in each of the slots. There are two or more display control units that divide the plurality of individual display units into two or more groups and perform display control of each individual display unit, signal wiring that connects the two or more display control units in series, a display command unit that issues a display command for the individual display units, and a communication line that connects the display command unit and the first display control unit. The display command unit transmits information including all display commands for the plurality of individual display units to the first display control unit via the communication line. Each of the two or more display control units includes a receiving unit that receives information transmitted from the display command unit or the display control unit connected upstream to its own display control unit, a memory-mapped I / O into which the information received by the receiving unit is input, and based on the information in the area assigned to its own display control unit among the information input to the memory-mapped I / O, a display output unit that causes the individual display units assigned to its own display control unit to be displayed and output, and a transmitting unit that transmits the information input to the memory-mapped I / O to the display control unit connected downstream to its own display control unit via the signal wiring. A display system for substrate processing operations is disclosed.

[0008] According to the present disclosure, it is possible to appropriately issue display commands from the control device side to a plurality of individual display units without excessive signal wiring between the control device side and the individual display units.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0010] Hereinafter, a display system for substrate-facing work according to an embodiment will be described.

[0011] 1. Configuration of a Substrate Production System Including a Display System for Substrate-Facing Work The substrate production system 1 of the present embodiment is a system for producing a substrate 2 on which electronic components are mounted. As shown in FIG. 1, the substrate production system 1 includes a plurality of substrate-facing work machines 10, a management device 50, and a display system 60 for substrate-facing work.

[0012] The substrate-facing work machine 10 is a device that performs a predetermined operation on the substrate 2 to be produced. A plurality of types of substrate-facing work machines 10 are provided. The substrate-facing work machines 10 are, for example, a printing machine, a printing inspection machine, an electronic component mounting machine, a reflow furnace, and an appearance inspection machine. In addition, as the substrate-facing work machine 10, for example, a function inspection machine, a buffer device, a substrate supply device, a substrate inversion device, a shield mounting device, an adhesive coating device, an ultraviolet irradiation device, etc. may be included as necessary. A plurality of types (for example, four types) of substrate-facing work machines 10 constitute a substrate-facing work line arranged in a predetermined order as shown in FIG. 1. The substrate 2 is conveyed by a substrate conveyance device in the arrangement order of the plurality of types of substrate-facing work machines 10.

[0013] For example, an electronic component mounting machine 10A, which is a type of substrate working machine 10, performs the loading operation, positioning operation, and unloading operation of the substrate 2, and also performs the supply operation, picking operation, mounting operation, etc. of electronic components accompanying the operations on the substrate 2. The electronic component mounting machine 10A mounts a plurality of electronic components on the substrate 2 that has been loaded and positioned at a predetermined position, and unloads the substrate 2 on which the electronic components have been mounted.

[0014] As shown in FIG. 2, the electronic component mounting machine 10A has a substrate transfer device 11, a component supply device 12, and a component transfer device 13.

[0015] The substrate transfer device 11 transfers the substrate 2 and positions the substrate 2 on the main body of the electronic component mounting machine 10A. The substrate transfer device 11 has a guide rail 11a, a conveyor belt, and a clamp device. The substrate transfer device 11 guides the substrate 2 in the transport direction X by rotating the conveyor belt on which the substrate 2 is placed and moving it along the guide rail 11a. Then, when the substrate 2 is transported to a predetermined component mounting position in the transport direction, the substrate 2 is positioned by the clamp device. The guide rail 11a, the conveyor belt, and the clamp device of the substrate transfer device 11 can be appropriately replaced according to the type, size, shape, etc. of the substrate 2.

[0016] The component supply device 12 supplies the electronic components to be mounted on the substrate 2 to the pickup position L. The component supply device 12 has slots 12a. The slot 12a is a part that detachably holds the feeder 20. The feeder 20 is a device that supplies electronic components to the pickup position L. A plurality of slots 12a (for example, 30) are provided so that the feeders 20 can be arranged in the transport direction X. The number of slots 12a is set to be the same as the maximum number of feeders 20 that can be set.

[0017] Further, the slot 12a may be capable of holding each feeder 20 in a state where a plurality of feeders 20 are housed in a hollow box-shaped housing case. Further, the slot 12a may be configured to hold the feeders 20 in two upper and lower stages. In this case, for example, the upper slot 12a holds the feeder 20 so as to be operable together with the housing case, and the lower slot 12a may preliminarily hold the feeder 20 for use in substrate production together with the housing case or temporarily hold it as a used feeder used in substrate production.

[0018] The feeder 20 has a holding portion that detachably holds a carrier tape in which electronic components are housed. The carrier tape has housing portions provided at predetermined intervals in the longitudinal direction for housing electronic components, and is wound around a disk-shaped reel. The holding portion of the feeder 20 holds the reel detachably and rotatably. The feeder 20 supplies the electronic components in the housing portion to the pickup position by running the carrier tape wound around the reel held by the holding portion using a motor.

[0019] The component transfer device 13 transfers the electronic components supplied to the pickup position to the substrate 2 positioned by the substrate transfer device 11. The component transfer device 13 includes a vertically movable mounting head 13a to which holding members such as suction nozzles and gripping members are attached, and a robot 13b that moves the mounting head 13a in the horizontal direction. The mounting head 13a and the holding members attached to the mounting head 13a are appropriately changed according to the type of electronic components to be transferred to the substrate 2. The component transfer device 13 appropriately combines the mounting head 13a and the robot 13b to pick up the electronic components supplied to the pickup position L, move them above the positioned substrate 2, and mount the electronic components at predetermined mounting positions on the substrate 2.

[0020] The management device 50 is a device that manages the production of the substrate 2 by the substrate production system 1. Incidentally, when a plurality of substrate production systems 1 (that is, a plurality of pair-substrate working lines) are provided in the factory, the management device 50 may integrally manage the substrate production by these plurality of substrate production systems 1. The management device 50 stores a production plan for a plurality of types of substrates over a predetermined period (for example, one week or one month) in the future and a usage plan indicating the types and quantities of electronic components used in accordance with the production plan of the substrate. The management device 50 executes the substrate production by the pair-substrate working machine 10 based on the predetermined production plan and usage plan.

[0021] The management device 50 can perform data communication with each pair-substrate working machine 10 of the substrate production system 1 by wire or wirelessly. Each pair-substrate working machine 10 has a control device 15 respectively. The control device 15 can perform various controls including operations on the substrate 2 in accordance with commands from the management device 50.

[0022] The pair-substrate working display system 60 is a system that visually displays the states of the feeders 20 set in the plurality of slots 12a of the electronic component mounting machine 10A for the operator. The pair-substrate working display system 60 is incorporated in the control device 15 of each electronic component mounting machine 10A. As shown in FIG. 3, the pair-substrate working display system 60 includes an individual display unit 61, a display control unit 62, a signal wiring 63, a display command unit 64, and a communication line 65.

[0023] The individual display unit 61 is a display that shows the state of the feeder 20 housed in the slot 12a. The individual display unit 61 is arranged at a position on the front surface of the electronic component mounter 10A that is easily visible to the operator. A plurality of individual display units 61 are provided according to the number of slots 12a of the corresponding electronic component mounter 10A. Each individual display unit 61 shows the state of the corresponding feeder 20. The plurality of individual display units 61 corresponding to the plurality of slots 12a of the electronic component mounter 10A are arranged side by side in the conveyance direction X in accordance with the arrangement direction and intervals of those slots 12a, as shown in FIG. 4. Incidentally, numbers representing the slot numbers of the slots 12a may be attached in the vicinity of the individual display unit 61.

[0024] The states of the feeder 20 shown by the individual display unit 61 include, for example, a normal state, an abnormal state, a warning state, etc. The normal state indicates that the feeder 20 is properly set in the slot 12a and is operable. The abnormal state indicates that although the feeder 20 is properly set in the slot 12a, an abnormality such as out-of-parts, poor component supply, adsorption failure, image processing error, communication error, etc. has occurred, or the feeder 20 is not properly set in the slot 12a. The warning state indicates that although the feeder 20 is properly set in the slot 12a, it warns the operator, such as during communication between the feeder 20 and the machine side.

[0025] Each individual display unit 61 has a plurality of types (for example, three types of green, orange, and red) of light sources (for example, LEDs), and can emit light using each light source. The plurality of types of light sources for each individual display unit 61 are arranged side by side, for example, in the conveyance direction X. Each individual display unit 61 lights up the LEDs in a color corresponding to the state of the feeder 20 to display that state. For example, when the feeder 20 is in a normal state, the individual display unit 61 lights up the LEDs in green for display, and when the feeder 20 is in an abnormal state, the individual display unit 61 lights up the LEDs in red for display. Note that the individual display unit 61 may emit each of the plurality of types of light alone to represent the state of the feeder 20, or may emit a combination of two or more of the plurality of types of light to represent the state of the feeder 20.

[0026] The display control unit 62 is a part that controls the display of the individual display unit 61. The display control unit 62 is mainly composed of a microcomputer. The plurality of individual display units 61 are divided into two or more groups and grouped. Each group includes a plurality of individual display units 61 and is distributed, for example, so that the number of individual display units 61 is equalized between groups. Two or more display control units 62 are provided corresponding to the number of groups of the individual display units 61. Hereinafter, it is assumed that the plurality (nine in FIG. 4) of individual display units 61 are divided into three groups A, B, and C as shown in FIG. 4, and three display control units 62 are provided. For each group of the individual display unit 61 and the display control unit 62, subscripts a, b, and c are added.

[0027] Each display control unit 62a, 62b, 62c controls the display of the individual display units 61a, 61b, 61c within the corresponding group. The plurality of display control units 62a, 62b, 62c are connected in series in that order using the signal wiring 63. Each display control unit 62a, 62b, 62c has ports to which the signal wiring 63 or the communication line 65 is connected. The ports are provided one each at the upstream and downstream portions of the display control unit 62. The first signal wiring 63 connects the downstream port of the first display control unit 62a among the three display control units 62a, 62b, 62c to the upstream port of the second display control unit 62b. The second signal wiring 63 connects the downstream port of the second display control unit 62b to the upstream port of the third display control unit 62c.

[0028] The display command unit 64 is a part that issues display commands for the individual display units 61a, 61b, 61c to the display control units 62a, 62b, 62c. The display command unit 64 is mainly composed of a microcomputer and is included in the control device 15 that controls the main body of the electronic component mounter 10A. The display command unit 64 uses various sensors provided in the electronic component mounter 10A and the like to detect the state of the feeder 20 set in the slot 12a. Then, the display command unit 64 issues a display command for the individual display unit 61 to the display control units 62a, 62b, 62c based on the detected state of each feeder 20.

[0029] The above display command includes display commands for all types of light sources of all the individual display units 61 provided in the electronic component mounter 10A. For example, when 65 individual display units 61 are provided and each individual display unit 61 has three types of light sources, the above display command includes on / off commands for 195 light sources.

[0030] Each display control unit 62a, 62b, 62c causes the individual display units 61a, 61b, 61c to be displayed according to the display command from the display command unit 64. The display command unit 64 is connected to the first display control unit 62a via the communication line 65. The communication line 65 connects the display command unit 64 and the upstream port of the first display control unit 62a. The above-described signal wiring 63 and communication line 65 each perform information exchange according to a communication standard such as UART (asynchronous communication), which is a serial communication standard.

[0031] As shown in FIG. 5, each display control unit 62a, 62b, 62c has a display substrate 80a, 80b, 80c on which a control chip is mounted. Each display substrate 80a, 80b, 80c is interposed between the upstream port and the downstream port in the corresponding display control unit 62a, 62b, 62c. The display substrates 80a, 80b, 80c are serially connected by the signal wiring 63. Each display substrate 80a, 80b, 80c is formed in an appropriate shape and size, and the maximum number of individual display units 61 that each display control unit 62 can control is predetermined.

[0032] The display substrates 80a, 80b, 80c are configured using a common substrate for each other. Each display substrate 80a, 80b, 80c can recognize its own display substrate 80a, 80b, 80c. This recognition is performed based on a switch setting using a dip switch or the like for identifying its own display substrate 80a, 80b, 80c. Each display substrate 80a, 80b, 80c is a circuit board having a reception circuit 81, an address map 82, a transmission circuit 83, and an LED output unit 84.

[0033] The receiving circuit 81 is a receiving unit that receives information transmitted from the display command unit 64 connected upstream to its own display control unit 62 or another display control unit 62. The address map 82 has a memory-mapped I / O to which the information received by the receiving circuit 81 is input. The memory-mapped I / O has a capacity capable of storing information including all the display commands of the plurality of individual display units 61 provided in the corresponding electronic component mounting machine 10A. The memory-mapped I / O is regionally set corresponding to the individual display units 61a, 61b, and 61c.

[0034] Specifically, the address map 82 of the display substrate 80a has memory-mapped I / Oa, I / Ob, and I / Oc corresponding to all the individual display units 61a, 61b, and 61c. The address map 82 of the display substrate 80b has memory-mapped I / Ob and I / Oc corresponding to two individual display units 61b and 61c. The address map 82 of the display substrate 80c has a memory-mapped I / Oc corresponding to one individual display unit 61c.

[0035] The transmitting circuit 83 is a transmitting unit that transmits the information input to the memory-mapped I / O of the address map 82 to another display control unit 62 connected downstream to its own display control unit 62. The LED output unit 84 is a display output unit that causes the individual display unit 61 assigned to its own display control unit 62 to be displayed and output based on the information in the region assigned to its own display control unit 62 among the information input to the memory-mapped I / O.

[0036] Furthermore, the above-described receiving circuit 81 and transmitting circuit 83 may be controlled by software using an MPU (micro processing unit), or may be controlled by hardware designed for cost reduction. In the case of this hardware control, each of the circuits 81 and 83 may be constructed using an FPGA (field programmable gate array). According to such a configuration, it is possible to increase the address area simply by changing the FPGA program without performing hardware revision of the display substrates 80a, 80b, and 80c, and thereby it is possible to easily increase the number of connected display substrates 80.

[0037] 2. Operation of the display system for substrate handling work In the display system 60 for substrate handling work, during system operation, the display command unit 64 detects the state of the feeder 20 set in the slot 12a of the electronic component mounter 10A, and based on that state, issues display commands to the plurality of individual display units 61 to the display control units 62a, 62b, and 62c. The display command unit 64 transmits information including all the display commands for the plurality of individual display units 61 to the leading display control unit 62a via the communication line 65.

[0038] The information transmitted from the above-described display command unit 64 to the leading display control unit 62a is provided with a fixed period during which the signal does not change and then a start command (SOH) is provided, and then includes bit information indicating the display commands for all the individual display units 61 (for example, on / off commands for 195 light sources as described above). Also, this bit information is arranged such that the information for the individual display unit 61a, the information for the individual display unit 61b, and the information for the individual display unit 61c are grouped together and transmitted in that order.

[0039] The leading display control unit 62a receives the information transmitted from the display command unit 64 by the receiving circuit 81 of the display substrate 80a. When the leading display control unit 62a detects a certain period during which the signal does not change from the display command unit 64 and receives a start command, it stores the bit information indicating the subsequent display commands in the memory-mapped I / O of the address map 82. The storage of the bit information in the memory-mapped I / O in the display control unit 62a is performed in a predetermined order, for example, in order from the least significant bit to the most significant bit of the leading address. At this time, the bit information of the individual display unit 61a is stored in the memory-mapped I / Oa, the bit information of the individual display unit 61b is stored in the memory-mapped I / Ob, and the bit information of the individual display unit 61c is stored in the memory-mapped I / Oc.

[0040] The LED output unit 84 of the leading display control unit 62a causes the individual display unit 61a to perform a display output based on the bit information stored in the memory-mapped I / Oa assigned to its own display control unit 62a among the information input to the memory-mapped I / O. In this case, the individual display unit 61a within group A lights up the LEDs in a pattern according to the bit information of the memory-mapped I / Oa and performs a display output according to the state of the feeder 20.

[0041] The transmission circuit 83 of the leading display control unit 62a transmits the information input to the memory-mapped I / O to the display control unit 62b connected downstream of its own display control unit 62a via the signal wiring 63. Specifically, at this time, the information transmitted from the display control unit 62a to the display control unit 62b is provided with a certain period during which the signal does not change and then a start command (SOH) is provided, and then, among the information input to the memory-mapped I / O, the bit information of the memory-mapped I / Ob and I / Oc assigned to all the display control units 62b and 62c existing downstream of its own display control unit 62a is included. Also, this bit information is arranged such that the information of the individual display unit 61b and the information of the individual display unit 61c are grouped together and transmitted in that order.

[0042] The second display control unit 62b receives the information transmitted from the first display control unit 62a by the receiving circuit 81 of the display substrate 80b. When the second display control unit 62b detects a certain period during which the signal does not change from the first display control unit 62a and receives a start command, it stores the bit information indicating the subsequent display command in the memory-mapped I / O of the address map 82. The storage of the bit information in the memory-mapped I / O in the display control unit 62b is performed in a predetermined order, for example, in order from the least significant bit to the most significant bit of the first address. At this time, the bit information of the individual display unit 61b is stored in the memory-mapped I / Ob, and the bit information of the individual display unit 61c is stored in the memory-mapped I / Oc.

[0043] The LED output unit 84 of the second display control unit 62b causes the individual display unit 61b to perform a display output based on the bit information stored in the memory-mapped I / Ob assigned to its own display control unit 62b among the information input to the memory-mapped I / O. In this case, the individual display units 61b within group B turn on the LEDs in a pattern according to the bit information of the memory-mapped I / Ob and perform a display output according to the state of the feeder 20.

[0044] The transmission circuit 83 of the second display control unit 62b transmits the information input to the memory-mapped I / O to the display control unit 62c connected downstream of its own display control unit 62b via the signal wiring 63. Specifically, at this time, the information transmitted from the display control unit 62b to the display control unit 62c is provided with a certain period during which the signal does not change and then a start command (SOH) is provided, and then, among the information input to the memory-mapped I / O, it includes the bit information of the memory-mapped I / Oc assigned to all the display control units 62c existing downstream of its own display control unit 62a. Also, this bit information is arranged so that only the information of the individual display unit 61c is grouped and transmitted.

[0045] The third display control unit 62c receives the information transmitted from the second display control unit 62b by the reception circuit 81 of the display substrate 80c. When the third display control unit 62c detects a certain period during which the signal does not change from the second display control unit 62b and receives a start command, it stores the bit information indicating the subsequent display command in the memory-mapped I / O of the address map 82. The storage of the bit information in the memory-mapped I / O in the display control unit 62c is performed in a predetermined order, for example, in order from the least significant bit to the most significant bit of the top address. At this time, the bit information of the individual display unit 61c is stored in the memory-mapped I / Oc.

[0046] The LED output unit 84 of the third display control unit 62c causes the individual display unit 61c to be displayed and output based on the bit information stored in the memory-mapped I / Oc assigned to its own display control unit 62c among the information input to the memory-mapped I / O. In this case, the individual display units 61c within group C turn on the LEDs in a pattern according to the bit information of the memory-mapped I / Oc and perform a display output according to the state of the feeder 20.

[0047] In this way, in the display system 60 for substrate work, the three display control units 62a, 62b, and 62c are connected in series using the signal wiring 63, and the display command unit 64 and the first display control unit 62a are connected using the communication line 65. Then, information including the display commands for the individual display units 61a, 61b, and 61c for the three display control units 62a, 62b, and 62c is transmitted from the display command unit 64 to the first display control unit 62a, and thereafter, information including the necessary display commands is transferred from the upstream display control unit 62 to the downstream display control unit 62. Then, each of the display control units 62a, 62b, and 62c causes the individual display units 61a, 61b, and 61c to be displayed and output.

[0048] In such a configuration, it is possible to appropriately issue a display command from the display command unit 64 to the plurality of individual display units 61, and display the states of the feeders 20 corresponding to each of the individual display units 61. Further, in order to display the states of the feeders 20 on all the individual display units 61 by the display command from the display command unit 64, since the communication line 65 or the signal wiring 63 with a minimum of 1 port is realized between the display command unit 64 and the display control unit 62 and between the display control units 62 connected in series to each other, it is not necessary to interpose individual wirings between the display command unit 64 and each of the individual display units 61.

[0049] Therefore, it is possible to appropriately issue a display command from the display command unit 64 to the plurality of individual display units 61 without an excessive amount of signal wiring between the display command unit 64 and the individual display units 61.

[0050] Also, if the individual wiring between the display command unit 64 and each of the individual display units 61 becomes unnecessary as described above, it is not necessary to arrange a large number of wirings on the display substrates 80a, 80b, 80c of each display control unit 62, and the total area of the wiring patterns on the display substrates 80a, 80b, 80c does not increase. Therefore, since the dimensional shapes of the display substrates 80a, 80b, 80c are suppressed from being restricted by the wiring, the display substrates 80a, 80b, 80c can be miniaturized.

[0051] Also, in the above configuration, in order to display the states of the feeders 20 on all the individual display units 61 by the display command from the display command unit 64, one of the two or more display control units 62a, 62b, 62c, i.e., the display control unit 62a, may be connected to the display command unit 64 using the communication line 65, and the two or more display control units 62a, 62b, 62c may be connected in series using the signal wiring 63.

[0052] Therefore, no matter how many individual display units 61 are mounted on the electronic component mounter 10A, by setting the display substrates 80a, 80b, 80c of each display control unit 62 to an appropriate dimensional shape and increasing or decreasing the number of display substrates 80a, 80b, 80c, the state of the feeder 20 can be displayed on each individual display unit 61. In this regard, it is not necessary to use a dedicated substrate as the display substrates 80a, 80b, 80c, and a general-purpose substrate can be used, so that the display system 60 for substrate handling work can be realized inexpensively and simply.

[0053] 3. Modified Forms Incidentally, in the above-described embodiment, the state of the feeder 20 mounted on the electronic component mounter 10A is displayed on the individual display unit 61. However, the present disclosure is not limited to this, and it may be applied to devices other than the feeder 20 as a device for displaying the state on the individual display unit 61.

[0054] Note that the present invention is not limited to the above-described embodiments and modified examples, and various changes can be made without departing from the spirit of the present invention.

Description of Reference Numerals

[0055] 1: Substrate production system, 2: Substrate, 10: Substrate handling machine, 10A: Electronic component mounter, 60: Display system for substrate handling work, 61: Individual display unit, 62: Display control unit, 63: Signal wiring, 64: Display command unit, 65: Communication line, 80a, 80b, 80c: Display substrate, 81: Reception circuit, 82: Address map, 83: Transmission circuit, 84: LED output unit.

Claims

1. Corresponding to a plurality of slots provided in a substrate working machine and each set with a device, a plurality of individual display units for displaying the states of the devices set in each of the slots; Two or more display control units that divide the plurality of individual display units into two or more groups and perform display control of each individual display unit; A signal wiring that connects the two or more display control units in series; A display command unit that issues a display command for the individual display unit; A communication line that connects the display command unit and the first display control unit; Comprising: The display command unit transmits information including all display commands for the plurality of individual display units to the first display control unit via the communication line. Each of the two or more display control units: A receiving unit that receives information transmitted from the display command unit or the display control unit connected upstream of its own display control unit; A memory-mapped I / O to which the information received by the receiving unit is input; A display output unit that causes the individual display units assigned to its own display control unit to be displayed and output based on the information in the area assigned to its own display control unit among the information input to the memory-mapped I / O; A transmitting unit that transmits the information input to the memory-mapped I / O to the display control unit connected downstream of its own display control unit via the signal wiring. A display system for substrate working, having the above components.

2. The transmitting unit transmits, via the signal wiring, information in the area assigned to all the display control units existing downstream of its own display control unit among the information input to the memory-mapped I / O, to the display control unit connected downstream of its own display control unit. The display system for substrate working according to Claim 1.

3. Each of the two or more display control units includes a circuit board with a switch setting for identifying its own display control unit. The display system for substrate working according to Claim 1 or 2.

4. Each of the individual display units can light up an LED in two or more colors. The display system for substrate working according to any one of Claims 1 to 3.

Images