FAQ02515 of Programmable Terminals FAQ

FAQ No. FAQ02515

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Question

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?

Answer

"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.

1.Wire Programmable Controllers to Programmable Terminals.

For detailed information on wiring instructions and cable models, refer to NS-series Programmable Terminals Setup Manual.

Be sure to set RS-232C/RS-422 Link Adapter (NT-AL001/NS-AL002) the DIP switch and terminating resistance correctly.

2.Set Programmable Terminals communications settings.

Programmable Terminals communications settings are set using Programmable Terminals System Menu.
Refer to NS-series Programmable Terminals Setup Manual.

When transferring project data (screen data), the communications settings will change to Serial Port A, B Protocol in System Settings in the project data.

3.Set Programmable Controllers communications settings.

For detailed setup information, refer to NS-series Programmable Terminals Setup Manual.

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.)