ABB EL3000 Series - Electrical Connections Modbus Module

EL3000 CONTINUOUS GAS ANALYZERS | CI/EL3000-EN REV. B 99
Electrical connections Modbus module
RS232 interface
Pin Signal
2 RxD
3 TxD
5 GND
Design: 9-pole male Sub-D plug
RS485 interface
Pin Signal
2 RTxD−
3 RTxD+
5 GND
Design: 9-pole female Sub-D plug
NOTE
For detailed information on "Modbus", refer to the Technical Information
"EL3000, EL3060, EL3010-C – Modbus".