Appendices
CM-2201/CM-2202
Appendix E
Modbus Address List
©2018 Nelson Heat Tracing Systems
www.nelsonheaters.com
GA2497 Rev.6
34
40252-40253
251-252
4
Alarm Stack 01
0 = No Alarm
1 = Low Temp Alarm
2 = High Temp Alarm
4 = Low Current Alarm
8 = High Current Alarm
16 = GF Alarm
32 = GF Trip
64 = Low Voltage Alarm
128 = High Voltage Alarm
256 = Auto Test Alarm
512 = Continuity Failure
Alarm
1024 = SSR Failed Shorted
Alarm
2048 = RTD-A Fail Alarm
4096 = Reserved
8192 = RTD-B Fail Alarm
16384 = Reserved
32768 = Self Check Failure
65536 = GFI test failure
(ch2)
40254-40255
253 – 254
4
Alarm Stack 02
(ch2)
40256-40257
255 – 256
4
Alarm Stack 03
(ch2)
40258-40259
257 - 258
4
Alarm Stack 04
(ch2)
40260-40261
259 - 260
4
Alarm Stack 05
(ch2)
40262-40263
261 – 262
4
Alarm Stack 06
(ch2)
40264-40265
263 – 264
4
Alarm Stack 07
(ch2)
40266-40267
265 – 266
4
Alarm Stack 08
(ch2)
40268-40269
267 – 268
4
Alarm Stack 09
(ch2)
40270-40271
269 – 270
4
Alarm Stack 10
(ch2)
40272-40273
271 – 272
4
Alarm Stack 11
(ch2)
40274-40275
273 – 274
4
Alarm Stack 12
(ch2)
40276-40277
275 – 276
4
Alarm Stack 13
(ch2)
40278-40279
277 – 278
4
Alarm Stack 14
(ch2)
40280-40281
279 – 280
4
Alarm Stack 15
(ch2)
40282-40283
281 – 282
4
Alarm Stack 16
(ch2)
40284-40285
283 – 284
4
Alarm Stack 17
(ch2)
40286-40287
285 – 286
4
Alarm Stack 18
(ch2)
40288-40289
287 – 288
4
Alarm Stack 19
(ch2)
40290-40291
289 – 290
4
Alarm Stack 20
(ch2)
