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)      
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 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
Channel error CD522
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)      
Channel error
4 14 1..10 1 0…15 47 Output short circuit Check output connection or terminal
11 / 12 ADR 1..10
4 14 1..10 1 0, 1, 8, 9 10 Input frequency too high Check frequency filter parameter or sensor
11 / 12 ADR 1..10
4 14 1..10 1 0, 1 2 PWM frequency too high Clamp min/max value in program
11 / 12 ADR 1..10
4 14 1..10 1 0, 1 10 PWM duty cycle out of range (0-1000) Clamp min value to 0 in program
11 / 12 ADR 1..10
4 14 1..10 1 0, 1 11 5 V sensor supply too low Check wiring & sensor power
11 / 12 ADR 1..10
4 14 1..10 1 0, 1 18 Internal fuse on 0 V has blown, 0 V not connected to GND Check wiring, replace module
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 (2 = DO); COM1/COM2: 1..10 = expansion 1..10
4) In case of module errors, with channel “31 = Module itself” is output.