Lenze · I/O system 1000 · Reference Manual · DMS 5.0 EN · 09/2016 · TD17
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6
PROFIBUS communication
6.9
Parameterising the time stamp
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6.9.2
2 digital outputs with time stamp function - EPM-S310
By integration of the GSE file VI010C19.gse you can specify all counter parameters via a hardware
configuration.
The module has an FIFO (first-in-first-out) memory for 15 time stamp entries. Depending on
parameter setting, you can use the output area to transfer up to 15 time stamp entries to the FIFO
memory. The input process image provides information on the status of the FIFO memory and the
status of processing.
Running number (RN):
Here you will find the "running number" of the time stamp entry last/next
written to the FIFO.
Status:
The status informs you of the status of the FIFO memory:
Code 0x00/0x80: Everything is OK
Code 0x01/0x81: No following time stamp entry available
Code 0x02/0x82: No new time stamp entries available.
Code 0x03/0x83: FIFO memory is full. No new time stamp entry can be accepted.
If bit 6 of the last processed "running number" was set, the code is returned at 0x80 OR-ed.
Input area
Addr.
Access
Assignment
+0
Byte
Bit 5 ... 0: Running number (RN = Running Number) of the last FIFO
entry
Bit 6: 1 (fixed)
Bit 7: 0 (fixed)
+1
Byte
Bits 5 ... 0: running number of the next FIFO entry
Bit 6: 1 (fixed)
Bit 7: 1 (fixed)
+2
Byte
Status
+3
Byte
Number of the time stamp entries in the FIFO memory
Note!
Note that no more time stamp entries can be accepted once the FIFO memory is full. You
should always establish the status of the FIFO memory before the transfer to ensure that
your entries are accepted.