Communications

  • All ETC-12 trip units are supplied with full MODBUS communications capability.
  • Accessing the communication features requires the purchase of an auxiliary cable and terminal block.
  • The ETC-12 can be addressed by any third party software that is capable of communicating with a MODBUS device. A full list of addresses and registers are available.
  • Communications features receives all of its required power from the current sensors monitoring the bus. Additional PT’s or control power is not needed.
  • Communications interface specifications are as follows:
Protocol MODBUS RTU
Physical Network RS-485
Baud Rate 9600
Data Bits 8
Stop Bits 2
Parity None