Chapter 2. System Configuration
2-3
(3) 1:1 communication between HMI andGM7U via RS-485 built-in port
2) 1:N communication system
This method can connect a computer to multiple main units up to a maximum of 32 stations.
(1) Via RS-422 Cnet I/F module
(2) Via RS-485 Cnet I/F module
G7L-CUEC
RS-232C ⇔ RS-422 Converter
Max. of 32 stations can be added
G7L-CUEC
* For details, refer to the section chapter 8. ‘Communication Function’.
GLOFA-GM7U
RS-232C ⇔ RS-485
Converter
Built-in RS-485 Built-in RS-485
Built-in RS-485
GLOFA-GM7U
GLOFA-GM7U
RS-485
GM7U Series
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