Diagnosis

In case of overload or short-circuit, the outputs switch off automatically and try to switch on again cyclically. Therefore, an acknowledgement of the outputs is not necessary. The LED error message, however, is stored.

E1..E4 d1 d2 d3 d4

Identifier

000..063

 AC500 display <− Display in
Class Comp Dev Mod Ch Err PS501 PLC browser

Byte 6

Bit 6..7

 - Byte 3 Byte 4 Byte 5

Byte 6

Bit 0..5

 FBP diagnosis block
Class Interface Device Module Channel Error Identifier Error message Remedy
  1) 2) 3) 4)      
Module error
3 14 1..10 31 31 19 Checksum error in the I/O module Replace I/O module
11 / 12 ADR 1..10
3 14 1..10 31 31 3 Timeout in the I/O module Replace I/O module
11 / 12 ADR 1..10
3 14 1..10 31 31 40 Different hard-/firmware versions in the module Replace I/O module
11 / 12 ADR 1..10
3 14 1..10 31 31 43 Internal error in the module Replace I/O module
11 / 12 ADR 1..10
3 14 1..10 31 31 36 Internal data exchange failure Replace I/O module
11 / 12 ADR 1..10
3 14 1..10 31 31 9 Overflow diagnosis buffer New start
11 / 12 ADR 1..10
3 14 1..10 31 31 26 Parameter error Check master
11 / 12 ADR 1..10
3 14 1..10 31 31 11 Process voltage too low Check process voltage
11 / 12 ADR 1..10
4 14 1..10 31 31 45 Process voltage is switched off (ON −> OFF) Process voltage ON
11 / 12 ADR 1..10
Channel error
4 14 1..10 2 0..31 47 Short-circuit at a digital output Check connection
11 / 12 ADR 1..10

Remarks:

1)

In AC500 the following interface identifier applies:

14 = I/O bus, 11 = COM1 (e.g. CS31 bus), 12 = COM2.

The FBP diagnosis block does not contain this identifier.
2)

With “Device” the following allocation applies:

31 = module itself, 1..10 = decentralized communication interface module 1..10, ADR = Hardware address (e.g. of the DC551)
3)

With “Module” the following allocation applies dependent of the master:

Module error: I/O bus or FBP: 31 = module itself; COM1/COM2: 1..10 = expansion 1..10

Channel error: I/O bus or FBP = module type (4 = DC); COM1/COM2: 1..10 = expansion 1..10
4) In case of module errors, with channel “31 = Module itself” is output.