Diagnosis

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 1

0…3

0…7

 48 Analog value overflow or broken wire at an analog input Check input value or terminal
11 / 12 ADR 1..10
4 14 1..10 1

0…3

0…7

 7 Analog value underflow at an analog input Check input value
11 / 12 ADR 1..10
4 14 1..10 1

0…3

0…7

 47 Short circuit at an analog input Check terminal
11 / 12 ADR 1..10
4 14 1..10 3

0…3

0…7

 48 Analog value overflow at an analog output Check output value
11 / 12 ADR 1..10
4 14 1..10 3

0…3

0…7

 7 Analog value underflow at an analog output Check output value
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 depending on 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 (1 = AI, 3 = AO); COM1/COM2: 1..10 = expansion 1..10
4) In case of module errors, with channel “31 = Module itself” is output.