Festo Кабели и принадлежности - Manual (Page 109)

A. Technical appendix
A−21
Festo P.BE−SPC200−COM−CANDN−EN en 0511a
Read fault message
Command Message, WRC = 25
d
Byte Function Contents
Byte 0 Control byte LOAD = 1 (see section 5.2.3)
Byte 1 Subindex 1: Current fault message
2...16: Diagnostic memory
Byte 2 Command Message type CMT = 25
d
Byte 3 Response Message type 0 (no update permitted)
Byte 4...8 Cmd. Data Not relevant
Response Message
Byte Function Contents
Byte 0 Status byte LOAD COMPLETED = 1 (see section 5.2.3)
Byte 1 *)
Byte 2 Fault code See fault treatment in section 6.5
Byte 3 RMT Copy from byte 2 of the Command Message
Byte 4 Resp. Data 1 **) Diagnostic word 1 (LB) **)
Byte 5 Resp. Data 2 Diagnostic word 1 (HB)
Byte 6 Resp. Data 3 Diagnostic word 2 (LB)
Byte 7 Resp. Data 4 Diagnostic word 2 (HB)
*) Not relevant
**) In the event of a fault: extended fault code (see section 6.5)
The composition of this fault message is described in chapter
6.4 Diagnosis via the field bus" and in the system manual for
the SPC200.