ComAp InteliGen NTC User Manual

Communication Guide, ©ComAp – March 2014 126
IGS-NT Communication Guide 03-2014.pdf
Modbus Appendix
Error list
If the controller encounters an error when processing the query, it returns the exceptional response
instead of the normal one to the terminal. An exception has always the value 2 (Illegal Data Address).
After receiving the exceptional response, the terminal should read the communication object 24523
containing the last error specification. The meaning of an error can be found out from the following
table.
MSB1
(*)
LSB1
(*)
MSB2
(*)
LSB2
(*)
Meaning
0
0
0
0
No error.
0
0
2
6
Comm. Object nonexistent.
0
0
1
6
Illegal access:
Read (write) of the communication object. Object intended only for write
(read).
255
0
0
8
Controller application isn’t active
254
0
0
8
Inexpectant message
253
0
0
8
No more unread records in event history.
252
0
0
8
Setpoint not defined in controller configuration.
251
0
0
8
Bad write data length.
250
0
0
8
Invalid password.
249
0
0
8
No more free space in front for EEPROM
248
0
0
8
Too long parameter
247
0
0
8
Invalid controller configuration.
246
0
0
8
Undefined command
245
0
0
8
Command can’t be done
244
0
0
8
Too long data answer form peripheries (max. 4B)
243
0
0
8
Too long data for peripheries (max. 4B)
242
0
0
8
Unavailable peripheries
241
0
0
8
Required operation isn’t available in peripheries
240
0
0
8
Operation cannot be performed now, the terminal has to repeat the request.
This error can occur when an operation with EEPROM memory (setpoint
write, history record read) is required at the same time while an internal
EEPROM write cycle takes place.
239
0
0
8
Controller programming can’t be carry out
238
0
0
8
Write cannot be performed – power supply failure detected.
237
0
0
8
Another active call request is present.
This error code can be returned by the controller as the response to the
communication object. Object 24540 write – active call termination.
236
0
0
8
Programming error
235
0
0
8
This error is reported by iG-MU module (Modem Bridge) in the case of a
connection failure between the module and the addressed controller. The
terminal can evaluate this error as a communication timeout with the
controller.
234
0
0
8
Write cannot be performed – periphery not responding.
233
0
0
8
Write cannot be performed – setpoint nonexistent in any periphery.
232
0
0
8
Bad access code for communication from a remote terminal.
231
0
0
8
Invalid controller address: value out of range 1 to 32 or already used. This
error is a reaction on communication object. Object 24537 write.

ComAp InteliGen NTC Specifications

General

Brand	ComAp
Model	InteliGen NTC
Category	Controller
Language	English