5: S
PECIAL
F
UNCTIONS
5-58 S
MART
AXIS P
RO
/L
ITE
U
SER
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S
M
ANUAL
FT9Y-B1378
Monitoring Ladder Program
This section describes the function to monitor the ladder program on the LCD of the SmartAXIS.
The program monitor on the SmartAXIS Pro is only enabled when ladder program is selected as the programming language.
Function Specification
Two lines of the ladder program stored in the ROM can be displayed on the LCD. You can show the ladder program at the specified
line number by specifying it using the operation buttons. The SmartAXIS saves the monitored ladder line when ladder program
monitoring is finished, and you can resume to monitor the ladder program from the same ladder line.
You can display the details of instruction parameters or switch the on/off state of contacts using the operation buttons.
The ladder program can be monitored regardless of the Run/Stop status of the SmartAXIS.
Notes:
In order to monitor the ladder program on the LCD of the SmartAXIS Pro, you need to configure settings using WindLDR.
There are two restrictions in creating the ladder programs that can be displayed on the LCD. Create ladder programs considering
those restrictions.
• A maximum of four ladder lines can be programmed in each ladder circuit.
• A maximum of eleven instructions can be programmed in each ladder line.
Programming WindLDR
■Configuration at the start up of WindLDR
1. Launch WindLDR.
The Ladder Program Monitoring on FT1A dialog box is displayed.
2. Select Enabled (Default) and click the OK button.
• The default value of the previously monitored ladder line number is one.
• The previously monitored ladder line number is lost at the following conditions:
• SmartAXIS Pro is powered up.
• A user program is downloaded to the SmartAXIS Pro.
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