Entron iPAK2

Section 13 Pro
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MODBUS
A PLC or HMI MODBUS master can be used to program an iPAK2. All parameters are directly mapped
to MODBUS registers for easy access. Both MODBUS-TCP/IP (Ethernet) and MODBUS-RTU (RS485)
protocols are supported.
Write the data using MODBUS function 16
Read the data using MODBUS function 3
MODBUS access types
Write data
Type Value Description
Function code UINT 16 Write multiple registers
Read offset UINT 0
Read length UINT 0
Write offset UINT variable
Write length UINT 1
Read data
Type Value Description
Function code UINT 3 Read holding registers
Read offset UINT variable
Read length UINT 64
Write offset UINT 0
Write length UINT 0