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(2) connect to COM1 communication port (RS232)
Suitable model：MP330、MP330-S、MP360-L、MP760-T
(3) connect to COM1 communication port (RS485)
Suitable model： MP360-L、MP760-T
Suitable model： MP330-S
Notice：The communication port ‘COM1’ of the Emerson EC20 series PLC contains a R232 and a
RS485 communication port, and only one of the ports can be chosen. At the same time,
the unused port can not be connected with other cables to avoid the communicational
interference.
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