2-1 Starting the Ladder Monitor
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Start the Ladder Monitor. Communications will start with the PLC and Ladder Monitor will
start. The port through which to monitor must be selected in the following cases.
• To monitor the PLC connected to port B when PLCs are connected to both port A and
B
• When the PLC to be monitored is not the one that was monitored the last time the
Ladder Monitor was used
• When the PLC to be monitored is to be changed while using the Ladder Monitor
Use the following procedure to select the PLC to monitor.
1. Press the Menu Button in the Ladder Monitor screen and select Change Host from
the menu.
2. Select either serial PortA or PortB as the Comms. Method from the Change Host
dialog box and click the OK Button. If the Change Host Dialog Box is displayed, press
the Connecting Button.
Ladder Monitor When Connecting PT to PLC through Ethernet or
Controller Link Port on PT
Connect the Ethernet or Controller Link port on the PT to the PLC and enable
communications.
Start the Ladder Monitor and select the port using the following procedure.
1. Press the Menu Button on the Ladder Monitor screen and select Change Host from
the menu.
2. Select Ethernet/CLK as the Comms. Method from the Change Host Dialog Box and
click the OK Button.
3. Select the host name of the host connected via either the Ethernet or Controller Link
port and click the OK Button. The main menu screen will return. If the Change Host
Dialog Box is displayed, press the Connecting Button.
Using the Ladder Monitor for the Controller Section of an NSJ
Controller
Start the Ladder Monitor and set the host using the following procedure.
1. Press the Menu Button in the Ladder Monitor screen and select Change Host from
the menu.
2. The Change Host Dialog Box will appear. Select Controller as the Comm. Method.
3. Select the host name of the Controller Section for the Host name and click the OK
Button. The Main Screen will appear. If the Change Host Dialog Box is displayed,
press the Connecting Button.
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