Siemens Simatic RTU3030C, Руководство по эксплуатации

Страница: 252 / 392

Program blocks
5.3 Often used parameters
RTU303xC
252
Operating Instructions, 06/2019, C79000-G8976-C382-06
Deletes the selected program block. If
Moves the selected program block down.
Creates a new program block below.
Inverted input/output with contact symbol filled with black (here parameter "En")
Inverting inputs and outputs
You can invert the values of digital (binary) inputs and outputs by clicking on the round
symbol at the input or output. The symbol is filled with black, see table.
Example:
● A non-inverted digital input is processed with the input signal 1.
● An inverted digital input is processed with the input signal 0.
In the block shown (see above), the input parameter "Trigger" is inverted.
Entry of decimal numbers
In all input boxes of parameters in which fractional decimal numbers can be entered, the
decimal places are separated by a period.
5.3 Often used parameters
Enabling parameter "En"
Every program block contains the input parameter "En".
The processing (call) of the blocks is enabled via the input parameter "En". The possible
values of the parameter have the following meaning:
● True
Default setting when creating a new block
With this setting, the enable is permanently activated. The block is processed in the
configured update cycle.
● False
With this setting, the enable is permanently deactivated. The block is not processed.