Siemens SIMATIC ET 200AL, System Manual

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Programming
4.3 Time-based IO
High-precision input/output with Time-based IO
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Function Manual, 11/2019, A5E33454822-AC
Parameter
The table below shows the parameters of the TIO_DI_ONCE instruction.
Parameter Declaration Data type Default Description
S7-1500
REQ Input Bool False Starts the job at a positive edge.
HWID* Input HW_IO 0 Hardware identifier for TIO module from hardware configuration
Channel* Input UInt 0 Number (0 ... m) of the digital input of the connected TIO
module
EdgeSel Input UInt 3 Specify the edges for which time stamps are detected:
0
D
: Invalid
1: Two rising edges
2: Two falling edges
3: Rising and falling edge (order depending on occurrence)
4: First rising, then falling edge
5: First falling, then rising edge
6 to 255: Invalid
If edge-triggered enable is used, the following also applies:
1: Enable at first positive DI edge
2: Enable at first falling DI edge
3: Enable at first DI edge
4: Enable at first positive DI edge
5: Enable at first falling DI edge
EdgeSel can be changed during normal operation.
DONE Output Bool False DONE = True: The job was completed without errors.
BUSY Output Bool False BUSY = True: The job has not yet been completed.
Error Output Bool False Error = True: An error has occurred. For detailed information
see Status parameter.
Error is reset as soon as the error is corrected.
Status Output DWord 16#0 Status of the instruction: see description of Status parameter
DI Output Bool False Status of digital input.
If an inversion of the digital input is configured, this parameter is
inverted as well.
Time-
StampRE
Output LTime LT#0ns Time stamp:
EdgeSel = 1: The last but one read-in time at which a positive
edge was detected (if
multiple
positive edges have occurred).
EdgeSel = 2: The last read-in time at which a falling edge was
detected (if
multiple
falling edges have occurred).
EdgeSel = 3; 4; 5: The last read-in time at which a falling edge
was detected.