Contents Of Error Log Area - Panasonic FP2 ET-LAN Technical Manual

12.1.2 Contents of Error Log Area

Error log area (bank 0)
Address Name
380H Log mode
Log block
381H
reading pointer
Number of
382H
reading log block
383H
Reserved (Used by the system.)
384H
385H Log buffer size
Total number of
386H
log
Number of log
387H
blocks used
388H to Latest log block
38FH area (8 words)
Log block
reading
390H to
processing area
3FFH
(8 words x 14
blocks)
Note:
1) Addresses 380H to 382H should be set before the error log notified request is issued.
2) The ET-LAN unit writes the latest values to addresses 385H to 38FH.
3) The ET-LAN unit writes values to addresses 390H to 3FFH after the error log notified request has
been issued.
12-4
Explanation
[Set value] (Default value: 0004H)
The recorded error differs depending on the set value.
Set value
System error
Recovery
possible error
Warning error
Access error
E-mail error
[Set value] Offset from latest log block of log buffer [Default value: 0000H]
- To read the latest log block, "0" is specified. To read the oldest log block used,
"Number of log blocks used – 1" is specified (see 387H below). This value
should be set such that the number of log blocks used is greater than or equal
to the log block reading pointer + the number of log block being read. If
anything else is specified, the results will be unclear.
[Set value] No. of reading blocks [Default value: 0000H]
- This specifies the number of blocks up to the old block to be read from the log
block reading point.
- A value of 14 or less should be set. If a value of 15 or higher is set, or if 0 is
set, 14 blocks will be read.
[Stored value] Log buffer size available with the unit itself (number of log blocks)
[Set value: 0100H (256 blocks)]
- This is set by the unit itself when it boots.
[Stored value] Cumulative total of log blocks recorded after initialization
processing
- This is cleared to 0 when initialization processing is carried out.
- The number of logs is counted up to FFFFH (65535), but if an attempt is made
to record more logs than will fit into the available buffer space, logs are
overwritten, starting with the oldest.
- The number of logs will not be incremented past FFFFH (65535).
[Stored value] Current number of log blocks available for reading in log buffer
- This is cleared to 0 when initialization processing is carried out.
- The count of the number of logs used will not be incremented past the buffer
size.
[Stored value] Latest log information
- The unit itself updates the contents constantly, so information can be read
using the shared memory access instructions F150 (READ) and P150
(PREAD), without issuing a read request.
- This is cleared to 0 when initialization processing is carried out.
[Stored value] Data read during log block read processing
- Up to 14 blocks are stored in the log, in the order in which the errors occurred,
when a read request is issued (the error log notified request bit of the
handshake area in the I/O or shared memory goes on).
- This is cleared to 0 when initialization processing is carried out.
0 1 2
-
- -
- - -
- - -
3 4
-