Siemens SIMATIC ET 200S Operating Instructions Manual page 282

2PULSE
5.4 Modes and Functions
Setting and Changing the Output Value
You select the range of the output value with the "Output format" parameter.
● Output format "Per mill": Value range between 0 and 1000
● "S7 analog output" output format: Value range between 0 and 27648
You set the output value directly using your control program. The new output value is applied
at the next rising edge of the output.
Setting the time period
Depending on the configuration, the time period is specified as a parameter value or in the
control interface. The table below shows when a specific value is used.
For isochronous mode, you have to specify the time period when parameters are assigned.
In contrast to non-isochronous mode, you cannot change the time period later during
runtime.
Isochronous mode
Non-isochronous mode
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The 2PULSE uses this specified output value to calculate the pulse duration:
Pulse duration = (output value/1000) x time period.
The 2PULSE uses this specified output value to calculate the pulse duration:
Pulse duration = (output value/27648) x time period.
Short control interface
Time period = "Time period" parameter value
The value from the control interface is ignored.
Time period = "Time period"
parameter value × "Time period
factor" from control interface
Configuration with ...
Long control interface
Time period = "Time period"
setpoint from control interface
The "Time period" parameter value
is ignored.
Operating Instructions, 06/2010, A5E00124867-07
Technological Functions