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Modbus I/O Access
A4D2/A4R2 Registers
The following coils and registers are supported by the IOLAN A4D2 and A4R2 I/O models:
Data Model A1 A2 A3 A4 D1/R1 D2/R2 R/W
Coils:
*
Holding Registers:
Input Registers:
*For DI alarm state, read will get state, write will clear alarm.
MB_REG_DI_SENSOR ----- ----- ----- ----- 6149 6150 R
MB_REG_DI_SENSOR_ALARM_STATE ----- ----- ----- ----- 6213 6214 R/W
MB_REG_DO_SENSOR ----- ----- ----- ----- 6661 6662 R/W
MB_REG_HR_DI_SENSOR_LATCH ----- ----- ----- ----- 6149 6150 R/W
MB_REG_HR_DO_SENSOR_PULSE_ISW ----- ----- ----- ----- 6213 6214 R/W
MB_REG_HR_DO_SENSOR_PULSE_ASW ----- ----- ----- ----- 6277 6278 R/W
MB_REG_HR_DO_SENSOR_PULSE_COUNT ----- ----- ----- ----- 6341 6342 R/W
MB_REG_HR_AI_CLEAR_ALARM_LATCH 2049 2050 2051 2052 ----- ----- W
MB_REG_HR_AI_CLEAR_MAX 2113 2114 2115 2116 ----- ----- W
MB_REG_HR_AI_CLEAR_MIN 2177 2178 2179 2180 ----- ----- W
MB_REG_IR_CURR_ENG 2080 2112 2144 2176 ----- ----- R
MB_REG_IR_MIN_ENG 2082 2114 2146 2178 ----- ----- R
MB_REG_IR_MAX_ENG 2084 2116 2148 2180 ----- ----- R
MB_REG_IR_CURR_RAW 2086 2118 2150 2182 ----- ----- R
MB_REG_IR_MIN_RAW 2087 2119 2151 2183 ----- ----- R
MB_REG_IR_MAX_RAW 2088 2120 2152 2184 ----- ----- R
MB_REG_IR_ALARM_LEVEL 2089 2121 2153 2185 ----- ----- R