Festo Контроллер двигателя SFC-ST - Manual (Page 109)

A. Technical appendix
A−25
Festo P.BE−SFC−DC−PB−S7−E N en 0604NH
A.4 Diagnostic memory
The diagnostic memory contains the codes of the last 16 diagĆ
nostic messages. The diagnostic memory is protected against
power failure. If the diagnostic memory is full, the oldest elĆ
ement will be overwritten (FIFO principle).
Structure of the diagnostic memory
Parameters 1) 200 201 202
Format uint8 uint16 uint32
Meaning Diagnostic event Fault number Time
Subindex 1 Latest / current diagnostic message
Subindex 2 Last diagnostic message
... ...
Subindex 16 Oldest diagnostic message
1) (see appendix B.1.2)
Tab. A/13: Structure of diagnostic memory
Configuration of the diagnostic memory with parameter 204 (see appendix B.1.2)
SubĆ
index Description Specificat. Min. Max.
1 = 1: Record incoming and outgoing faults
= 2: Record only incoming faults 1 1 2
2 = 1: Resolution time stamp 10 ms
= 2: Resolution time stamp 1 ms 1 1 2
3 Deleting the diagnostic memory.
Ĉ Write with value = 1 deletes the diagnostic memory
Ĉ Read will always be answered with value = 0 0 0 1
4 Number of valid entries in the diagnostic memory 0 0 16
Tab. A/14: Structure of diagnostic memory