System manual CECX / Bus link module CECX-B-CO
CECX-E-4E-T-P1
4 measuring inputs for PT100 resistance sensors
possible errors: Sensor failure
For each CECX-E-4E-T-P1, the object 0x6401 is extended by 4 Sub-
Indices.
Objects used:
0x6401 (Read analog inputs)
For details about the objects used:
See chapter "K-Bus module-specific objects".
34.8 Operating behavior
34.8.1 Response to module errors
Any module error is indicated by the STATUS-LED (red). The CECX-B-CO
will send a status message to the Bus master.
Once the module error has been removed the system must be newly initial-
ized (new start-up).
34.8.1.1 Emergency Message
To signal error states the
CECX-B-CO sends out Emergency Messages.
34.8.1.2 Telegram structure:
Example: Emergency
Message (sensor failure)
Bus address CECX-B-CO: 0x07
CAN-Identifier: Bus address + 128 (0x80) = 0x87
Error register: 0x1001, Bit 2 set (voltage error)
Error code: 0x3000 (see Error Codes)
Module ID: 0x04
CAN
Identifier
Error
Register
Errorcode Modul ID Statuswort
11bit 8bit 8bit 8bit 8bit 8bit 8bit
Structure of the Emergency-Message
CECX-II 34-22