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(2) Monitoring procedure
The following shows the local device monitoring procedure.
(3) Precautions
(a) Local devices that can be monitored/tested by a single GX Developer
A single GX Developer can monitor or test local devices in one program at a time.
Local devices in multiple programs cannot be monitored or tested simultaneously.
(b) Number of programs that can be monitored/tested
Local devices in 16 programs can be monitored or tested simultaneously from multiple GX Developers
connected to the RS-232 interface of the CPU module or the serial communication module.
(c) Monitoring local devices in a stand-by type program
When local devices in a stand-by type program are monitored, data in local devices are saved and restored.
For this reason, the scan time increases. ( Section 9.14.2)
(d) Monitoring local devices in a fixed scan execution type program
When local devices in a fixed scan execution type program are monitored, data in local devices cannot be
acquired and "0" is displayed.
Figure 6.35 Local device monitoring procedure
Select [Local device monitor]
from the monitor window.
The local device of the
displayed program is
monitored.
Setting of the local
device monitor
Switching to the
monitor mode
Select [Online]
[Monitor] [Monitor mode].
Display a program in ladder mode.
Connect a personal computer to the CPU module.