Diagnostics
FC2001 and FC2002
23
Version: 2.0
5.2
Status and diagnostic inputs
The process image of the FC200x contains status registers and error counters, which are displayed in the
TwinCAT System Manager.
Fig. 19: TwinCAT System Manager – status and diagnostic inputs
Status register
The FC200x has input words for each optical fiber ring that describe the state of the Lightbus card and the
optical fiber ring:
DeviceState
General status: contains the value
1
in the event of an error
, otherwise
the value 0 (device OK).
DeviceIioFunc
In the event of an error this contains the code of the function that has triggered the error, e.g.:
0x01 Optical fiber reset
0x02 Code word request
0x05 Optical fiber attenuation test (intensity check)
0x06 Count I/O modules (counting boxes)
0x07 Test I/O module addresses (address check)
0x09 Software reset
