User`s manual

MGate 4101-MB-PBS UM Configuration
4-21
The IO map interface shows input and output memory array. The row unit is internal address and the column
unit is byte number. Each column has a length of 20 bytes. Each cell is showed as the following table:
Modbus Mode Command The Format Meaning
Master N/A <The Modbus ID>[The ID of I/O module]
Slave 05: Write single coli
15: Write multiple coli
<The start bit:The end bit>[The ID of I/O module]
01: Read coli
02: Read discrete inputs
06: Write single register
16: Write multiple register
<The start word>[The ID of I/O module]
03: Read holding registers
04: Read input register