6 - 148
(6) Precautions
(a) When initial device value and latch range are overlapped
In that case, initial device value takes priority. Therefore, the latch range data will be overwritten to the initial
device value data after the CPU module is powered off and then on.
(b) Area disabling the initial device value setting when the CPU module is set from
STOP to RUN
The initial device value are also reflected when the CPU module is set from STOP to RUN.
For an area where an initial device value is not to be set when the CPU module is set from STOP to RUN (data
that are set when the CPU module is powered off and then on and changed by a program), the initial device
value cannot be used.
Use an instruction such as the MOV instruction in the main routine program so that the initial device values will
be set to the specified devices.
Use the TO instruction to write data to the buffer memory of the intelligent function module.
(c) Devices that require module synchronization setting
When setting the following devices in the Device initialization range setting screen, set "Module
synchronization" in the PLC system tab of the PLC parameter dialog box.
If the setting is not configured, the initial device values may not be set to the target module properly.
• Intelligent function module device (U \G)
• Link direct device (J
\W, J\SW )
For details of the initial device value range setting, setting of the initial device value data, and writing of the initial device
values to the CPU module, refer to the following.
GX Developer Version 8 Operating Manual
To Next Page
Loading...
Need help?
General
