Hello All
I have a modbus tcp device(Julabo magio) with an DB9 pin assignment. Pin3=B and Pin8=A. I would like to connect it on the secondary port of a siemens PLC S71200 (X12). Now I was wondering which pin of the S71200 (RJ45 connector) i need to connect on the DB9 connector. My theory(after some google pictures):
A = +TX and +RX
B =-TX and -RX
S7-1200 port is full duplex;
Pin1:+TX
Pin4: -TX
Pin5: -RX
Pin6: +RX
So:
DB9.P8(A)= 1+6
DB9.P3(B)= 4+5
What do you think? i searched the siemens website but could find any pin layouts.
I have a modbus tcp device(Julabo magio) with an DB9 pin assignment. Pin3=B and Pin8=A. I would like to connect it on the secondary port of a siemens PLC S71200 (X12). Now I was wondering which pin of the S71200 (RJ45 connector) i need to connect on the DB9 connector. My theory(after some google pictures):
A = +TX and +RX
B =-TX and -RX
S7-1200 port is full duplex;
Pin1:+TX
Pin4: -TX
Pin5: -RX
Pin6: +RX
So:
DB9.P8(A)= 1+6
DB9.P3(B)= 4+5
What do you think? i searched the siemens website but could find any pin layouts.
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