Festo Контроллер двигателя SFC-ST - Manual (Page 54)

3. Control block
3−10
Festo P.BE−SFC−DC−PB−S7−E N en 0604NH
3.1.4 Fault information
The fault output of the block distinguishes between faults in
the SFC−DC and faults in the block. Faults in the SFC−DC are
shown with the Fault bit, more precise details of the fault
must be downloaded in the diagnostic buffer of the SFC−DC.
Block faults are output at the output RET_VAL. If the block is
processed incorrectly, the ENO bit will be set to 0.
Block−internal faults are triggered by a position factor
denummerator with value 0, or by system functions
(e.g.ĂSFC14/SFC15, ...).
The fault codes are defined by the transmission blocks, seeĂhĆ
elp for STEP 7.
The evaluation of the fault can take place with the value
RET_VAL and the help for the relevant transmission blocks
(SFC14/SFC15, SFB52/SFB53, SFC58/SFC59).