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SST Automation Serial to Ethernet Communication Solutions
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Keywords
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| Modbus RTU,
Modbus TCP, cascade, multi-master monitoring
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Background
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| Modbus is the
world's first bus protocol to be truly used in industrial fields,
published by Modicon (a brand of Schneider Electric) in 1979. Till
now Modbus enables thousands of devices to communicate. Internet
organizations enable the reserved system port 502 on the TCP / IP
line access Modbus.
Modbus protocol supports traditional serials RS-232, RS-485 and
Ethernet devices. Many industrial devices, including PLCs, DCSs and
smart meters, are using Modbus protocol as a communication standard
between them.
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Case Study
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| In this
application, SST MT-RS series gateways have dual Ethernet interface,
built-in switch, support cascade, can be used in looped network;
field connection can save cable and switch. Network security part:
can limit communication client's IP address range and set the login
password to protect the network security. Communication part: can
support 4 Modbus TCP masters to communicate at the same time, and
can support 32 command requests at the same time.
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System Diagram
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California Office:
3200 E Guasti Rd, STE 100, Ontario, CA 91761
Tel: 844-606-2886 (US & Canada)
+1 (626) 899-6290
(International)
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Asian Pacific Office:
6E, Bld 3, 518# Xinzhuan Rd, Songjiang District,
Shanghai 201612,
China
Tel: +86-18917828842
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