9-1
Chapter 9. PLC Link Communication Function
9 - 1 Overview
If a model with RS-485 communication is used, this device can directly communicate with a PLC using the PLC link
communication function.
With this function, data retained by a PLC can be written to this device and vice versa.
Sample connection
Serial module
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……
C1M
31 units max.
C1M
Supported PLC protocol
• Mitsubishi QnA-compatible 3C protocol
• Omron FINS protocol
• Modbus/RTU protocol
Specifications
• Number of connected PLC units = 1
• Number of connected C1M units = 31
• Supported protocols: 3 types (Mitsubishi QnA-compatible 3C format 4, Omron
FINS, Modbus/RTU)
• Communication data count: 64 (PLC → C1M), 64 (C1M → PLC)