Omron NT631 Operation Manuals page 484

Programmable terminal

Hide thumbs Also See for NT631:

Table of Contents

Screen Display and Notification

[Example of Use]

While the NT631/NT631C is running, the screen number of the currently displayed

screen is always recorded in the "screen switch setting" word in the PT status con-

trol area (except when the screen displayed is an error screen or the System Menu

screen, in which case the screen number of the screen displayed immediately be-

fore remains recorded).

An example of a PC program which reads the screen number each time the screen

is switched by the NT631/NT631C is described below. This example program

stores the previous screen number also.

S Setting with the Support Tool

Set the following words with the Support Tool.

- Allocated word in the PT status control area:

00100 (word 100 in the CIO area)

- Allocated word in the PT status notify area:

00110 (word 110 in the CIO area)

S PC program

Create the PC ladder program as indicated below.

S Program operation

(1) When the screen switching strobe (bit 11112) comes ON as the screen is

switched by operation at the NT631/NT631C, the program transmits the

data at DM0100 to DM0101. The previous screen number is saved to the

word provided for that purpose.

(2) The program reads out the new screen number that was notified to the

NT631/NT631C to transmit it to DM0100. The screen number of the screen

presently displayed at the NT631/NT631C is stored to DM0100.

Word for storing the screen number of the previous screen

Word for notifying the screen number of the presently displayed screen

Word for storing the screen number of the new screen

Chapters

Table of Contents