Exception codes - Grid automation - Communication Protocol Manual - REC615 Grid Automation - PCL1 - IEC - ANSI

REC615 Modbus Master Communication Protocol Manual

Table 1. Supported exception codes
Function code Name Description
81 Read coil status exception code Unsuccessful read of discrete outputs status
82 Read digital input status exception code Unsuccessful read of discrete inputs status
83 Read holding registers exception code Unsuccessful read of the contents of output registers contents
84 Read input registers exception code Unsuccessful read of the contents of input registers contents