Wiping Relay - Siemens Simatic RTU303xC Series Operating Instructions Manual

Parameters
Function parameters
RS/SR priority
Output parameters
Output
5.10.3

Wiping relay

Function
When there is an edge change 0 → 1 at the "Trigger" input, at the output a signal of
selectable duration is generated.
Two types of function can be programmed:
● Start value = "Pulse"
A change from 0 to 1 at the "Trigger" input starts the first pulse and the output is set to 1.
When the time set in the parameter "Pulse duration" is reached, the output is reset to 0.
If the number of cycles is > 1, the time "Interpulse period" starts to run and when it is
completed a new pulse begins again.
Depending on the setting "End", the pulse sequence runs as long as the "Trigger" signal
is set or the pulse sequence has been completely processed.
● Start value = "Pause"
A change from 0 to 1 at the "Trigger" input starts the pulse pause and the output is set to
0.
After the "Interpulse period" has elapsed, the "Pulse duration" time is started and the
output is set to 1.
After the "Pulse duration" has elapsed, the output is reset to 0.
If the number of cycles is > 1, the "Interpulse period" starts again followed by a new
pulse.
Depending on the setting "End", the pulse sequence runs as long as the "Trigger" signal
is set or the pulse sequence has been completely processed.
RTU303xC
Operating Instructions, 06/2019, C79000-G8976-C382-06
Tag type / range of Description
values
SR
• •
RS
•
•
Digital output / bit Tag for the output.
memory
5.10 Switch and relay blocks
SR
If "Set" and "Reset" have the same value, "SR" caus-
es the output to be set to 1.
RS
If "Set" and "Reset" have the same value, "RS" caus-
es the output to be set to 0.
Program blocks
319