Modbus register maps - Grid automation - User Manual - ARR600 Wireless I/O Gateway - Arctic series - 3.4 - IEC - ANSI

Table 1. Modbus register map for IO-1 (8DI+2DO)
Function code (Hex)	Function	Address range	Number of registers	Modicon notation	Properties
1 (0x01)	Read Coils	0…1	2	00001…00002	Read digital outputs
2 (0x02)	Read Discrete Inputs	0…7	8	10001…10008	Read digital inputs
3 (0x03)	Read Multiple Holding Registers	0…7	8	40001…40008	Read input counters
5 (0x05)	Write Single Coil	0…1	2	00001…00002	Write digital output
6 (0x06)	Write Single Holding Register	0…7	8	40001…40008	Clear input counter
15 (0x0F)	Write Multiple Coils	0…1	2	00001…00002	Write digital outputs
16 (0x10)	Write Multiple Holding Registers	0…7	8	40001…40008	Clear input counters

Table 2. Modbus register map for IO-2 (6DI+4DO+2AI)
Function code (Hex)	Function	Address range	Number of registers	Modicon notation	Properties
1 (0x01)	Read Coils	0…3	4	00001…00004	Read digital outputs
2 (0x02)	Read Discrete Inputs	0…5	6	10001…10006	Read digital inputs
3 (0x03)	Read Multiple Holding Registers	0…5	6	40001…40006	Read input counters
4 (0x04)	Read Input Registers	0…1	2	30001…30002	Read analog inputs. For analog values, the returned value is calculated like this: value = (raw value - offset) ·multiply·
					100. Offset and multiply are taken from the calibration file.
5 (0x05)	Write Single Coil	0…3	4	00001…00004	Write digital output
6 (0x06)	Write Single Holding Register	0…5	6	40001…40006	Clear input counter
15 (0x0F)	Write Multiple Coils	0…3	4	00001…00004	Write digital outputs
16 (0x10)	Write Multiple Holding Registers	0…5	6	40001…40006	Clear input counters

Modbus register maps - Grid automation - User Manual - ARR600 Wireless I/O Gateway - Arctic series - 3.4 - IEC - ANSI - 21.06.2023