Entron iPAK2 - Modbus I;O

Section 5 MODBUS I/O 24
MODBUS I/O
iPAK2 can be operated via MODBUS instead of using the discrete inputs and outputs.
Both MODBUS TCP/IP (Ethernet) and MODBUS RTU (RS485) protocols are supported.
Write the inputs using MODBUS function 16
Read the outputs using MODBUS function 3
MODBUS access types
Write inputs
Type Value Description
Function code UINT 16 Write multiple registers
Read offset UINT 0
Read length UINT 0
Write offset UINT 16#8000 (= 32768)
Write length UINT 2
Read outputs
Type Value Description
Function code UINT 3 Read holding registers
Read offset UINT 16#9000 (= 36864)
Read length UINT 24
Write offset UINT 0
Write length UINT 0