Server User Manual

Modbus I/O Access
282 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0
D4/D2R2 Registers
The following coils and registers are supported by the IOLAN D4 and D2R2 I/O models:
Data Model D1 D2 D3/R1 D4/R2 R/W
Coils:
*
Holding Registers:
*For DI alarm state, read will get state, write will clear alarm.
Serial Pin Signals
The following coils and registers are supported by the IOLAN I/O models:
Data Model Pin R/W
Coils:
Holding Registers:
MB_REG_DI_SENSOR 6145 6146 6147 6148 R
MB_REG_DI_SENSOR_ALARM_STATE 6209 6210 6211 6212 R/W
MB_REG_DO_SENSOR 6657 6658 6659 6660 R/W
MB_REG_HR_DI_SENSOR_LATCH 6145 6146 6147 6148 R/W
MB_REG_HR_DO_SENSOR_PULSE_ISW 6209 6210 6211 6212 R/W
MB_REG_HR_DO_SENSOR_PULSE_ASW 6273 6274 6275 6276 R/W
MB_REG_HR_DO_SENSOR_PULSE_COUNT 6337 6338 6339 6340 R/W
MB_REG_DI_DSR 4225 R
MB_REG_DI_DSR_ALARM_STATE 4289 R/W
MB_REG_DI_DCD 4353 R
MB_REG_DI_DCD_ALARM_STATE 4417 R/W
MB_REG_DI_CTS 4481 R
MB_REG_DI_CTS_ALARM_STATE 4545 R/W
MB_REG_DO_DTR 4673 R/W
MB_REG_DO_RTS 4737 R/W
MB_REG_HR_DI_DSR_LATCH 4097 R/W
MB_REG_HR_DI_DCD_LATCH 4609 R/W
MB_REG_HR_DI_CTS_LATCH 5121 R/W