Lenze I/O system 1000 System Manual - Manual (Page 263)

CANopen communication
Transmitting process data
PDO mapping for I/O compound modules with time stamp function
8
l
263 EDSIO1000 EN 7.0
Status of FIFO memory for EPM−S310
Bit Designation Function
0 ... 5 RN−LAST Running number of the time stamp entry last
detected as valid by the module and written into
the FIFIO memory.
6 1 (fix); is used for identification in the process
image
7 0 (fix); is used for identification in the process
image
8 ... 13 RN_NEXT Running number of the time stamp entry to be
processed next in the FIFO memory.
14 1 (fix); is used for identification in the process
image
15 1 (fix); is used for identification in the process
image
16 ... 23 STS_FIFO Status information of FIFO memory
l 00
h
or 80
h
: Everything is OK; you will receive
this message directly after the acceptance into
the FIFO memory of the module.
l 01
h
or 81
h
: No follow−up entry available; the
running number does not correspond to the
expected running number. Check the running
number in the output area.
l 02
h
or 82
h
: No new entries available in the FIFO
memory.
l 03h or 83h: FIFO memory full. No new entries
possible.
A full memory will not accept any more time
stamp entries. Perform a status query to
establish the FIFO memory’s status before
transferring more time stamp entries.
Note: If less than possible time stamp entries are
written, bit 6 must be set in the running number
(RN) of the last time stamp entry. This is required
in order to not write the follow−up entries as
"invalid" since the module ignores all time stamp
entries after an entry with a set RN bit 6. If a time
stamp entry with a running number and a set bit 6
is in the FIFO memory, STS_FIFO with 80
h
is
returned in an OR−ed manner.
24 ... 31 — Current number of time stamp entries in FIFO
memory.