Chapter 6 Writing a Program
6-3
6.1.3
Program
(1) When the START button (X0) switches from OFF to ON, the internal operation flag is set to ON, and the
conveyor (Y0) starts. When the STOP button (X1) switches from OFF to ON, an error occurs (the error flag
is ON), the operation flag is reset to OFF, and the conveyor stops.
(2) When the in position sensor 1 (X2) is ON, the trigger signal for injector 1 (Y1) is set to ON. When the in
position sensor 1 is OFF, the trigger signal for injector 1 is reset to OFF.
(3) When the in position sensor 2 (X3) is ON, the trigger signal for injector 2 (Y2) is set to ON. When the in
position sensor 2 is OFF, the trigger signal for injector 2 is reset to OFF.
(4) When the counting sensor (X4) switches from OFF to ON, the sensor value increases by one increment. If
the sensor value is larger than or equal to 100, the internal completion flag is set to ON.
6.2
Procedure for Creating a Project in ISPSoft
This section shows you the procedure for creating a project in ISPSoft. You can adjust the procedure according
to your needs.
Hardware configuration
You set the parameters such as a range of latched devices and a port number in a PLC. You configure the
modules with a DVP-ES3 Series CPU module, and set the parameters in these modules.
Network configuration
If a system uses a network architecture, or devices need to exchange data, use the network configuration
tool NWCONFIG in ISPSoft to configure a network and exchange data with COM as well as Ethernet.
Programming
After you write a program in ISPSoft, compile the program. If the compiling is unsuccessful, messages in
the Compile Message page show where the errors occur.
Testing and debugging
Download the compiled program, the hardware configuration, and the network configuration to a PLC. You
can then test and debug the program online with the functions provided by ISPSoft.
Because the example introduced in this chapter does not discuss a network configuration, you only perform the
following procedure.
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