1) The Ladder Monitor starts up if you turn ON bits in the LS area. Configure the settings for turning ON the following bits using switch parts and D-scripts.
• Read the cache from a CF Card
Normally, every time you start the Ladder Monitor, it communicates with the PLC to read the ladder programs and it may take time to display the ladder programs. To improve the display update speed, the Ladder Monitor feature reads the PLC ladder programs onto the device CF Card (cache) first and then displays them.
If you change the ladder programs on the PLC after reading the PLC ladder programs to the display CF Card, read the ladder programs to the CF Card again. In [Main Screen] on the GP, select [Read].
)
“3.1 Main Screen” (page 3-2)• To speed up the comment file display speed, create the following folder on the CF Card to copy the project comment file (∗.WCD) created with the GX-Developer programming tool by Mitsubishi Electric. This saves reading on the PLC and allows for faster reading.
)
“3.2 File Selection Screen” (page 3-4)Q Series CPU direct : “PLCLDMON\MIT_QCPU”
Q/QnA Series Ethernet : “PLCLDMON\MIT_QETH”
Bit 1 Turn ON to start up the Ladder Monitor.
Bit 3
Turn ON to start the Ladder Monitor and display the ladder programs cached on the CF Card.
• If the programs are not cached in advance, the bit only triggers the same action as Bit 1 turning ON (starts up the Ladder Monitor). To
Reading to the CF Card (cache)
LS2078
15 1 3 2
Reserved
1: Starting up the Ladder Monitor Reserved
1: Reading the cache data Reserved
Monitoring the PLC Ladder Programs on a Display
4
Register the device monitor feature. In GP-Pro EX, from [System Settings], point to [Display Unit] and select [Extended Settings]. Select the [Device Monitor] checkbox.5
Save and transfer the project file to the display.Reference:GP-Pro EX Reference Manual
6
Install the CF Card onto the GP.Reference:For details on installing a CF Card, see “GP3000 Series Hardware Manual”.
7
Connect the display to communicate with the PLC.Reference:For details on the connection, see “GP-Pro EX Device Connection Manual”
• The device monitor screen uses a global display window. While the device monitor is displayed, the screen cannot display other global windows. When you select the [Device Monitor] checkbox, [Global Window] operation is automatically set to [Indirect].
• For manual settings, in the display system menu, point to [Offline], select [Main Unit], and select [Window Settings]. Configure the following settings in [Global Window Operation]:
Global Window Operation: Indirect
Data Type : BIN
• To monitor the Q/QnA Series with Ethernet Connection, you need to input the PC station number of the External Device that you want to monitor by GP-Pro EX.
For the setting of PC station number, see “Mitsubishi Electric Corporation Q/
QnA Series Ethernet Driver” in “GP-Pro EX Device Connection Manual”.
Monitoring the PLC Ladder Programs on a Display
8
Start up the Ladder Monitor.There are four ways to start up the Ladder Monitor.
• System menu
• Switch parts
• LS area
• System variables:
#H_LadderMonitor (no cache)
#H_LadderMonitorCache (with cache)
When the monitor starts up, the device/PLC selection screen is displayed.
Select the PLC for the ladder program you wish to monitor. The screen jumps to the File Selection screen.
Ladder Monitor
Startup Detail
Start up with the System Menu
On the screen, touch the top left → on the bottom right (or the top right → on the bottom left) in this order within 0.5 Seconds to display the system menu. Touch the [Ladder Monitor] button to display the main screen.
• To start up using switch parts or the LS area, see the following pages.
)
Setup Procedure3 “Create a project file.” (page 2-4)Ladder Monitor
or
Displaying Ladder Programs in Alarm History View
2.3 Displaying Ladder Programs in Alarm History View
2.3.1 Details
Place the Ladder Monitor startup switch on the alarm history screen. This allows you to display the device whose the alarm is sounding directly from the history screen.
2.3.2 Setup Procedure
1
Place the Ladder Monitor startup switch on the alarm history screen.)
“2.2 Monitoring the PLC Ladder Programs on a Display” (page 2-3)2
On the alarm history screen, touch the alarm you wish to monitor.Next, touch the Ladder Monitor startup switch.
2003/12/13
Displaying Ladder Programs in Alarm History View
3
The device search keypad is displayed.The device address you selected on the alarm history screen is automatically entered.
Touch [Search].
4
The ladder programs will be displayed starting with the device for which the alarm sounded.Printing the Ladder Monitor View from a Display
2.4 Printing the Ladder Monitor View from a Display
2.4.1 Details
You can output the Ladder Monitor screen from a printer connected to the display.
This allows you to efficiently save and analyze data.
2.4.2 Setup Procedure
1
Connect the display to the printer.Reference:GP-Pro EX Reference Manual
2
On the Ladder Monitor main screen, touch [Print].Capturing and Saving the Ladder Monitor View on a CF Card
2.5 Capturing and Saving the Ladder Monitor View on a CF Card
2.5.1 Details
You can capture and save the Ladder Monitor screen on a CF Card.
This allows you to efficiently save and analyze data.
2.5.2 Setup Procedure
1
On the Ladder Monitor main screen, touch [Capture].2
The displayed screen is captured and saved on the CF Card. The file name is “CP∗∗∗∗∗.jpg”and ∗∗∗∗∗ is an automatically assigned number from 0 to 65535.
• The time required for screen capture differs depending on the image quality and screen size. The file size for an image quality of 80 is approximately 200k bytes, and the capture (snapshot) takes 5 to 6 seconds. To change the image quality, from the GP-Pro EX [System Settings], point to [Display
CF Card
Illuminated in red during capturing