Festo Электромотор MTR-DCI - Manual (Page 196)

6. Diagnostics and error display
6-12
Festo P.BE-MTR-DCI-CO-EN en 1209a
6.4 Diagnostic memory
The diagnostic memory contains the last 16 diagnostic mess-
ages. It is backed up if possible in the event of power failure.
If the memory is full, the oldest element will be overwritten
(ring buffer).
Structure of the diagnostic memory
Parameters 1) CO/CI 20C8
h
PNU 200
CO/CI 20C9
h
PNU 201
CO/CI 20CA
h
PNU 202
Format uint8 uint16 uint32
Meaning Diagnostic event Fault number Time
Subindex 1 Current diagnostic message
Subindex 2 Previous diagnostic message
... ...
Subindex 16 Oldest diagnostic message
1) see section B.2.6
Tab. 6/8: Diagnostic memory: Structure
Configuration of the diagnostic memory with parameter CO/CI 20CCh (PNU 204)
SI Description Specifi-
cation: 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.
– Writing with value = 1 deletes the diagnostic memory
– Read will always be answered with value = 0. 0 0 1
4 Number of valid entries in the diagnostic memory. 0 0 16
*) outgoing fault = time point when the fault was quitted.
Tab. 6/9: Diagnostic memory: Configuration