Siemens SIMATIC ET 200M Operating Instructions Manual page 156

Functions
8.2 Time stamping the input signals with IM 153-2
Parameterizing the edges
● Time stamp with edge 0 → 1:
● Time stamp with edge 1 → 0:
Example
For a fully connected ET 200M (8 digital inputs with in each case 16 digital inputs) the data
record 240 has a total of 50 bytes for the configuration of the time stamp.
Return values on DS_WRITE
Possible return values on writing a data record can be obtained in accordance with the DPV1
standard.
8.2.4.6 Structure of the process interrupt
Structure of the alarm information
The process interrupt is structured in accordance with the DPV1 standard.
Table 8- 1
Value
00 0C 00h
05h
80 1Eh
43 00 00h
07 82 00 00 00 00 00h
08 02 02 20 00 67 01 0Dh
Table 8- 2
Value
08h
02h
02h
20h
154
With a signal change on the digital input of 0 → 1 a signal message with signal status 80h
(incoming) is stored in the data record (DS 100 to 114).
With a signal change on the digital input of 1 → 0 a signal message with signal status 80h
(incoming) is stored in the data record (DS 100 to 114).
Contents of the diagnostic frame (example)
Contents of the interrupt section (example)
Meaning
Station status
Master address (e.g. B 5)
Manufacturer ID
Module diagnostics (variable length, here 3 bytes)
Module status (variable length, here 7 bytes)
Interrupt part with time stamping
Meaning
Bit 7 ... 6: Code for the interrupt
•
Bit 5 ... 0: Length of interrupt section
•
Interrupt type
Slot
Bit 7 ... 3: Interrupt sequence number
•
Bit 2 ... 0: Types of interrupt
•
Operating Instructions, 12/2008, EWA-4NEB780600602-08
ET 200M