INT, WORD
Modbus 04, Read Input Registers
The constant specifies the Modbus command and can be applied to the input parameter FunctionCode of a Modbus instruction.Modbus function code 04: read multiple link registers (WL or LD)
Input parameter StartRegister: 0–1023 = WL0–WL1023 2000–2255 = LD0–LD255