E2658-C2H4
Rev 12.03.2021
* – The new value is applied after restart.
** – Broadcast slave ID 0 can be used to assign a new ID to the instrument with an
unknown ID. When addressing by ID 0 the device shall be the only Modbus instrument in
the network. The device will not respond to the Master command when addressed by ID 0.
*** – This value is dynamic and not kept in EEPROM after a restart.
20
bit[11]=0/1 - 1 Hz (50% on,
50% off) LED signal off/on if
relay1 turned on
bit[12]=0/1 - 2 Hz (50% on,
50% off) LED signal off/on if
relay2 turned on
0x0101
257 /
40258
R
Raw gas sensor data
0...4095, ADC units
0x0103
259 /
40260 R
Gas concentration,
gas units
0...65535, gas units
0x0105
261 /
40262
RW 0% value
for analog output 1
-32000...+32000, gas units
User
defined
0x0106
262 /
40263
RW 100% value
for analog output 1
-32000...+32000, gas units
User
defined
0x0107
263 /
40264
RW 0% value
for analog output 2
-32000...+32000, gas units
User
defined
0x0108
264 /
40265 RW
100% value
for analog output 2
-32000...+32000, gas units
User
defined
