Siemens Simatic RTU303xC Series Operating Instructions Manual page 264

Program blocks
5.6 Blocks for time functions
Tr
Toff
R
Q
Figure 5-3
Parameters
Parameters
Input parameters
En
Trigger
Reset
Function parameters
Off delay (ms)
Output parameters
Output
264
Trigger
Off delay
Reset
Output
Circuit diagram of a block. "Off delay"
Range of values
True / False
•
Digital input /
•
output / bit
memory
STATUS_ERROR
•
True / False
•
Digital input /
•
output / bit
memory
STATUS_ERROR
•
100 .. 999999999
Digital output / bit
•
memory
Description
Enable parameter, see section Often used parameters
(Page 252).
When there is an edge change 0 → 1 the Off delay is
started.
After the Off delay has elapsed, the output is set to 0.
With the setting "True" the trigger is always active.
With the setting "False" the block is never processed.
When there is an edge change 0 → 1 Off delay is
stopped and the output is set to 0. As long as "Reset" is
set to 1, the value of "Trigger" is ignored.
When there is an edge change 1 → 0 the block can be
processed again.
With the setting "True" the input is always active and the
block is actually turned off .
With the setting "False" the Off delay is never reset.
Delay in milliseconds
Tag in which the value calculated by the block is output.
Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC