885-0142 AES CAB BCU Modbus Communication Protocol

Relay and Status Monitoring

Relay states and status flags are read via function code 0x03.

Parameter

Address Range

Description

Pack relay status

60101+

Main Pos/Neg, Precharge, Fan, etc.

System operational status

1101

Bits: Init, Ready, Discharge, etc.

Pack operation flag

1102, 1115

Each bit = 1 pack