Nov. 18
Automatikprodukter
Nitrogen Dioxide, NO
2
Gas Detector - Analogue, Modbus
6
db_nitrogen_transmitter_uk.indd
RNO2
Annex 1. RNO2 series Modbus holding registers (part 2)
Register addresses are shown 0-based, Addr in hexadecimal, Reg in decimal format.
Modbus holding register numbers MHR are shown in decimal 1-based format, and may be addressed either from 00001 or 40001 base.
Addr
Reg/MHR
RW
Description
Supported values (dec)
Default
0x00A2 162/40163
RW
Zero adjustment for tem
-
perature data, °C × 100
-32000...+32000 (-320,00...+320,00 °C)
0
0x00A5 165/40166
RW
Zero adjustment for gas
data, ADC
-32000...+32000 ADC units
0
0x00A6 166/40167
RW
Slope adjustment for gas
data
1...65535
512
0x00A7 167/40168
RW
Change rate limit for gas
data, ppm (‰ for O
2
) / s
1...32000, 0 - no limit
0
0x00A8 168/40169
RW
Integrating filter time
constant, s
1...32000 (seconds), 0 - no filter
0
0x00C9 201/40202
RW
Parameter tied to analog
output 1
0-none
1- temperature
2- gas concentration
9- forced Modbus control, value set in MHR / 40204
2
0x00CA 202/40203
RW
Parameter tied to analog
output 2
0-none
1- temperature
2- gas concentration
9- forced Modbus control, value set in MHR / 40205
2
0x00CB 203/40204
RW
Forced value for analog
output 1***
0...1000 (0,0%...100,0% of output scale)
0
0x00CC 204/40205
RW
Forced value for analog
output 2***
0...1000 (0,0%...100,0% of output scale)
0
0x00FF 205 / 40256
RW
Sensor, analog outputs,
LED and buzzer status
bit[0]=0/1 - sensor present/absent, read-only!
bit[1]=0/1 - analog outputs deactivated/activated,
bit[2]= 0/1 - in case the sensor is absent, turn signaling off/on analog
output1,
bit[3]=0/1 - in case the sensor is absent, turn on signaling with low
current/high current on analog output1; if bit[2]==0 this bit will be
ignored,
bit[4]=0/1 - in case of sensor absent, turn signaling off/on analog
output2
bit[5]=0/1 - in case of sensor absent, turn on signaling with low
current/high current on analog output2; if bit[4]==0 this bit will be
ignored,
bit[6]=0/1 - current/voltage output detected on output1, read-only!
bit[7]=0/1 - current/voltage output detected on output2, read-only!
bit[8]=0/1 - LED deactivated/activated (always 0 for E2618), bit[9]=0/1 -
buzzer deactivated/activated (always 0 for E2618)
0x0100 256 / 40257
RW
Raw temperature data,
°C×100
signed integer, -4000...+8500 (-40,00...+85,00 °C)
0x0101 257 / 40258
R
Raw gas sensor data
ADC data 0...4095
0x0102 258 / 40259
R
Measured temperature,
°C×100
signed integer, -4000...+12500 (-40,00...+125,00 °C)
0x0103 259 / 40260
R
Gas concentration, ppm / ‰
signed integer, -32000...+32000 (ppm / ‰)
0x0105 261 / 40262
R
0% value for analog output
signed integer, -32000...+32000 (ppm / ‰)
0x0106 262 / 40263
RW
100% value for analog
output 1
signed integer, -32000...+32000 (ppm / ‰)
0x0107 263 / 40264
RW
0% value for analog output 2
signed integer, -32000...+32000 (ppm / ‰)
0x0108 264 / 40265
RW
100% value for analog
output 2
signed integer, -32000...+32000 (ppm / ‰)
We cannot be held responsible errors in the manual/datasheet and reserve the right to correct any errors and to make product improvements, which may affect the
accuracy of the manual/datashet, without prior notice.
