When connecting NS-series Programmable Terminals to Programmable Controllers with a RS-232C/RS-422 connection, the words "Connecting…" appear at the bottom right of a solid black screen and seem to stay there without changing. What causes this, and how do I fix it?
"Connecting..." indicates that Programmable Terminals are not connected to Programmable Controllers.
To communicate properly, connect Programmable Terminals to Programmable Controllers with the designated cable, and then set Programmable Terminals and Programmable Controllers communications settings.
(Screen data can be transferred properly.)
A summarized setup procedure is provided below.
Be sure to set RS-232C/RS-422 Link Adapter (NT-AL001/NS-AL002) the DIP switch and terminating resistance correctly.
When transferring project data (screen data), the communications settings will change to Serial Port A, B Protocol in System Settings in the project data.
Depending on the Unit or port that is connected, the system settings are made using a DIP switch or a Programming Device. When making system settings with a Programming Device, set the DIP switch on the CPU Unit to enable the system settings.
4.Restart Programmable Controllers.
Turn OFF power supply to Programmable Controllers and then restart it.
The display will appear.
(The display will appear even if Programmable Controllers is in PROGRAM mode.)