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What is the serial cable to connect a Magelis XBTF terminal to an M340 PLC for Modbus communication?

Issue
What is the serial cable to connect a Magelis XBTF terminal to an M340 PLC for Modbus communication?

Environment
Serial Cable Modbus communication

For RS-485 interface, the cable part number is XBTZ938.
The cable uses an RJ45 male connector on the M340 side and a Dsub 25-pin male connector on the XBTF side.

For RS-232C interface, there is no manufactured cable. A custom cable will need to be fabricated.
 
The pinout is as follows:
 
XBTF                                                                           M340
DB25                                                                           RJ45

RxD 2 <------------------------------------------------------------> 1
TxD 3 <------------------------------------------------------------> 2
SG   7 <------------------------------------------------------------> 8

Pins 8 & 12 are jumpered                                  Pins 3 & 6 are jumpered

 
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