Siemens Simatic RTU3030C, Руководство по эксплуатации

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Program blocks
5.6 Blocks for time functions
RTU303xC
Operating Instructions, 06/2019, C79000-G8976-C382-06
267
Tr
Ton
R
Q Trigger
On delay
Reset
Output
Figure 5-5 Circuit diagram of a block. "Retentive on delay"
Parameters
Parameters Range of values Description
Input parameters
En
Enable parameter, see section Often used parameters
(Page 252).
Trigger
•
True / False
• Digital input /
output / bit
memory
•
STATUS_ERROR
When there is an edge change 0 → 1 the time of On
delay is started.
With the setting "True" the trigger is always active.
With the setting "False" the block is never processed.
Reset
• True / False
•
Digital input /
output / bit
memory
• STATUS_ERROR
When there is an edge change 0 → 1 at the "Reset" input
after the On delay ( = 1) has elapsed the output is reset
to 0.
With the setting "True" the input is always active and the
output is set to 0 immediately. The function is therefore
actually turned off.
With the setting "False" the input is never active.
Function parameters
On delay (ms)
100 .. 999999999 On delay in milliseconds
After the time of the On delay has elapsed, the output is
set to 1.
Output parameters
Output
• Digital output / bit
memory
Tag in which the value calculated by the block is output.