Dedicated network diagnostics module for a process network
A technology of network diagnosis and dedicated network, which is applied in the direction of bus network, data exchange network, master station device, etc., and can solve problems such as hindering multiple diagnostic tools and being expensive
Inactive Publication Date: 2015-10-07
PHOENIX CONTACT DEVMENT & MFG
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- Description
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- Application Information
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Problems solved by technology
[0013] Providing redundant diagnostic tools on the network can be expensive because more field devices with such tools must be provided, and redundant diagnostic tools are separated along the network, which prevents multiple diagnostic tools from being placed on the network most excellent location
Method used
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[0028] figure 1 A dedicated network diagnostic module 10 according to the invention is shown. The diagnostic module 10 shown is configured for FOUNDATION TM The Fieldbus H1 network and includes a trunk interface 12 for coupling the modules 10 to the network. The shown trunk interface 12 comprises two terminals 14a, 14b for connection to the F+ and F- wires of a two-wire trunk cable of the Fieldbus network and a third terminal 14c for attachment to a shielded wire (if present). The diagnostic module 10 is shown having terminals 14 a , 14 b and 14 c connected to the signal, ground and shield lines of the network backbone 16 .
[0029] The diagnostic tool 10 includes a power supply block 18 , a communication block 20 , a diagnostic block 22 and a controller or processor 24 .
[0030] The power supply block 18 draws electrical energy for the diagnostic module 10 from the network backbone 16 and supplies power to the other blocks 20, 22, 24 and Any additional internal component...
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A network diagnostic module coupleable to a distributed process control network that controls an industrial process via field devices coupled to the network includes a power block coupleable to the network and configured to power the network diagnostic module with energy received from the network, a communications block coupleable to the network and configured to bi-directionally communicate over the network, and a diagnostics block coupleable to the network and configured to make diagnostic measurements of network and protocol parameters of the network. The network diagnostic module is not itself a field device that detects or controls any process variable of the industrial process, enabling the network diagnostic module to be placed essentially anywhere along the network to permanently monitor the network.
Description
technical field [0001] The present invention relates to a control system for real-time distributed control, and more particularly, to a diagnostic device or module for a control system. Background technique [0002] Automated industrial systems have field devices that monitor, control, and operate industrial processes. Each field device senses or controls a process variable of an industrial process. [0003] The field devices communicate with the control processor or head via a mains that transmit power to the field devices and data signals (which may include operational commands) between the control processor and the field devices. The field devices are each attached to the trunk line via a spur line or branch connection. Field devices can be distributed throughout the plant and the data transfer rate allows essentially real-time control of the process. [0004] For distributed control systems including standardized power and communication protocols, standardized network...
Claims
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IPC IPC(8): H04Q9/00G05B19/418H04L12/40
CPCG06F11/079G06F11/30H04L12/40045H04L12/6418H04L41/082H04L2012/40221H04Q9/00H04Q2209/30H04Q2209/75H04Q2209/823Y04S40/162Y04S40/00
Inventor B·沃格特B·E·赫尔夫里克A·R·克雷德D·马修斯
Owner PHOENIX CONTACT DEVMENT & MFG