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Functions
8.2 Time stamping the input signals with IM 153-2
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
155
Value
Meaning
00h
Status of time stamping
67h
Data record number of the data record to be fetched
(64h to 72h = DS 100 … 114)
01h
Number of messages in the data record
(01h to 14h = 1 … 20)
0Dh
fixed value
Table 8- 3
Status of time stamping
Bit
Contents
Meaning
7 … 6 0
Evaluation unnecessary
5
Place the time stamping again
0: No new placement carried out
1: New placement taking place
If the bit 5 is set (= 1), then the history of the still unread
buffer (data records) must be deleted, as the time
stamping has been placed again.
New placement of the time stamping is necessary when
starting up / restarting and changing over to redundant
mode. With the events specified, you must install this
deletion in the user program.
4 … 0 0
Evaluation unnecessary
Return values on DS_READ
Alongside the possible return values (in accordance with DPV1 standard) on reading a data
record, in connection with the time stamping the following return value can be supplied:
Table 8- 4
Return value on DS_READ
Code
Meaning
0x80B0
•
A data record outside of the value range of DS 100 ... DS 114 is requested.
•
The IM 153-2 has not yet been configured (DS 240 missing).
Содержание IM 153-4 PN
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