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EXcel4 Controller
Page 43
5
Connection tables
5.1.1
Power and communications
EXcel
4
terminal
Function
Notes
1
RS485A TX
The descriptions “A” and “B” are not
always consistent between various
manufacturers. To avoid problems,
always follow the pin-to-pin tables in
this manual.
2
RS485B TX
3
RS485A RX
4
RS485B RX
5
RS232 COMMS 0V (SG)
6
RS232 RX
7
RS232 TX
8
RS232 RTS
9
RS232 CTS
10
12V DC Power Supply IN
11
0V In Power Supply Ground
5.1.2
MA-45 RS232/RS485 converter
MA-45
EXcel 4
1
2
2
1
3
4
4
3
5
No connection
5.1.3
Connecting one EXcel
4
to another
(the same pin
connections apply for all EX series)
EXcel
4
EXcel
4
3
3
4
4
1
1
2
2
5.1.4
RS232 to EXcel
4
PC 9-way
PC 25-way
EXcel 4 terminal Function
2
3
7
Receive
3
2
6
Transmit
5
7
5
Ground