Comtrol DeviceMaster EtherNet/IP-Modbus EIP-MOD User Manual page 134

| Read Holding Registers Service (4E Hex)
Parameter
startAddress INT (16 bit WORD)
numRegisters INT (16 bit WORD)
Parameter
registerData
134 - Chapter 10. PLC Programming for Modbus Object (44 Hex)
Data Type
0 to FFFF hex
1 to 125 (7D0 hex) Number holding registers to read.
Data Type
INT (16 bit WORD)
Range
Starting address base 0
Range Description
0 to FF hex Holding register data.
DeviceMaster EIP-MOD User Guide: 2000664 Rev. A
Description