Modbus TCP/IP

Unit ID: 1

Supported Modbus TCP/IP function codes:

Holding Registers

Variable PLC variable Address Access Data type Description
Sensors (si=sensor index 0..120; 0=unassigned (new) sensor)
Index si 10 * si + 0 RW I16 Sensor index (si); when changed sensor will be moved to new index, but only if new space is empty
Status th_status[si] 10 * si + 1 RO I16 Temperature sensor status
0 = no sensor,
1 = OK,
2 = Error, no response
Temperature th_temperature[si] 10 * si + 2 RO I16 Measured temperature in 0.1 °C (234 = 23,4 °C)
Humidity th_humidity[si] 10 * si + 3 RW I16 Measured relative humidity in 0.1 %RH (654 = 65,4 %RH)
Alarm Temperature HI th_temperature_alarm_hi[si] 10 * si + 4 RW I16 Measured temperature over set high limit
0 = idle
1 = alarm
Alarm Temperature LO th_temperature_alarm_lo[si] 10 * si + 5 RW I16 Measured temperature below set low limit
0 = idle
1 = alarm
Alarm Humidity HI th_humidity_alarm_hi[si] 10 * si + 6 RW I16 Measured humidity over set high limit
0 = idle
1 = alarm
Alarm Humidity LO th_humidity_alarm_lo[si] 10 * si + 7 RO I16 Measured humidity below set low limit
0 = idle
1 = alarm
Spare 0 10 * si + 8 RO I16 0
Spare 0 10 * si + 9 RO I16 0
Statistics
Sensors count th_count_all 1210 RO I16 The number of all sensors that are configured
Sensors OK th_count_ok 1211 RO I16 The number of all sensors communicating correctly
Sensors Error th_count_err 1212 RO I16 Number of all sensors not responding (not communicating)
Sensors Alarm th_count_alarm 1213 RO I16 The number of all sensors that are in alarm (temperature or humidity outside the set limits; if the limits are set)
Average temperature th_temperature_avg 1214 RO I16 Average temperature of all sensors communicating properly
Minimal temperature th_temperature_min 1215 RO I16 The minimum temperature of all sensors communicating properly
Maximal temperature th_temperature_max 1216 RO I16 The maximum temperature of all sensors that communicate correctly
Average humidity th_humidity_avg 1217 RO I16 Average relative humidity of all sensors communicating correctly
Minimal humidity th_humidity_min 1218 RO I16 Minimum relative humidity of all sensors communicating properly
Maximal humidity th_humidity_max 1219 RO I16 Maximum relative humidity of all sensors communicating correctly
Spare 0 1220-1229 RO i16 0
General settings
Temperature HI Limit th_temperature_alarm_hi_limit 1230 RW I16 Limit for temperature HI alarm in 0.1 °C (500 = 50,0 °C); 0 = No temperature HI alarm
Temperature HI Clear th_temperature_alarm_hi_clear 1231 RW I16 Limit for clear of temperature HI alarm in 0.1 °C (450 = 45,0 °C), must be lower than Temperature HI Limit; 0 = No auto clear of temperature HI alarm
Temperature LO Limit th_temperature_alarm_lo_limit 1232 RW I16 Limit for temperature LO alarm in 0.1 °C (50 = 5,0 °C); 0 = No temperature LO alarm
Temperature LO Clear th_temperature_alarm_lo_clear 1233 RW I16 Limit for clear of temperature LO alarm in 0.1 °C (100 = 10,0 °C), must be higher than Temperature LO Limit; 0 = No auto clear of temperature LO alarm
Humidity HI Limit th_humidity_alarm_hi_limit 1234 RW I16 Limit for humidity HI alarm in 0.1 %RH (500 = 50,0 %RH); 0 = No humidity HI alarm
Humidity HI Clear th_humidity_alarm_hi_clear 1235 RW I16 Limit for clear of humidity HI alarm in 0.1 %RH (450 = 45,0 %RH), must be lower than Humidity HI Limit; 0 = No auto clear of humidity HI alarm
Humidity LO Limit th_humidity_alarm_lo_limit 1236 RW I16 Limit for humidity LO alarm in 0.1 %RH (50 = 5,0 %RH); 0 = No humidity LO alarm
Humidity LO Clear th_humidity_alarm_lo_clear 1237 RW I16 Limit for clear of humidity LO alarm in 0.1 %RH (100 = 10,0 %RH), must be higher than humidity LO Limit; 0 = No auto clear of humidity LO alarm
Spare 0 1238 RO I16 0
Spare 0 1239 RO I16 0