Siemens SIMATIC ET 200S Operating Instructions Manual page 292

2PULSE
5.4 Application Examples
Pulse Output Mode
Use channel 0 of the 2PULSE in pulse output mode for the filling process. In this mode, the
2PULSE generates a pulse at the DO digital output (24 V control signal) for the specifiable
pulse duration to control the valve.
Procedure
1. Starting filling process: To start the process, use the software enable (SW_ENABLE) on
2. Monitoring filling process: The error detection/diagnostic function allows you to check in
3. Terminating filling process: You can find out when the process has finished in the
Figure 5-17
292
your control program. The 2PULSE uses the 24 V enable signal (DI digital input) to check
whether the container is correctly positioned. Then open the valve using the control
program (SW_ENABLE 0→1) and start the filling process.
the program that the process is running correctly.
program by evaluating STS_ENABLE.
Flow Diagram for the Filling Process
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05