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 5)
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

Inter-

face

De-

vice

Mod-

ule

Chan-

nel

Error

identifier

 Error message Remedy
 
     
Module error DC505-FBP
3 - 31 31 31 19 Checksum error in the I/O module Replace I/O module
3 - 31 31 31 3 Timeout in the I/O module
3 - 31 31 31 40 Different hard-/firmware versions in the module
3 - 31 31 31 43 Internal error in the module
3 - 31 31 31 36 Internal data exchange failure
3 - 31 31 31 9 Overflow diagnosis buffer New start
3 - 31 31 31 26 Parameter error Check master
3 - 1..7 31 31 11 Process voltage too low Check process voltage
3 - 1..7 31 31 17 No communication to the I/O module Replace I/O module
4 - 31 31 31 45 Process voltage is switched off (ON/OFF) Process voltage ON
4 - 31/1..7 31 31 34 No reply at initialization of the I/O module Replace I/O module
4 - 31/1..7 31 31 32 Wrong I/O module in the slot

Replace I/O module

or

check configuration
4 - 1..7 31 31 31 At least one module does not support the failsafe function (can only appear with activated failsafe function). Replace I/O module with one of version as of V1.9
Channel error DC505-FBP
4 - 31 2 8..15 47 Short-circuit at a digital output Check connection

Remarks:

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.

With “Device” the following allocation applies:

31 = Module itself, 1..7 = Expansion module 1..7

With “Module” the following allocation applies:

31 = Module itself or module type (2=DO)
In case of module errors, with channel “31 = Module itself” is output.
Valid for the current firmware version of the AC500: Errors, which are reported by the DC505-FBP to the AC500 CPU, cannot be shown yet directly in the display of the CPU or in the PLC browser of the Control Builder PS501.