TR7500_Hardware_en - 第53页

52 6 . 1 .2 O p en th e P L C I/ O T e s t i ng D i s p l a y . l B o t h h i dd e n b u tt on s m u s t b e p r e s s ed s i m u l t a n e o u s l y . H i dd en bu t to n H i dd en bu t ton

6 Service

6.1 PC/PLC Connecting

l First confirm that the main program has begun testing. If not running, please start the

program and repeat a test of the PLC. If there is still a problem, please launch the main

program and the PLC I/O TEST to test the system manually to see if the I/O is operating

normally (the settings and procedure are as the figures below). If there is still no response,

please carry out Step 2 and Step 3 to examine the wiring and system. If manual testing

shows that everything is normal, check the program version or contact support personnel for

assistance.

6.1.1 Opening the PC I/O Testing Display

6.1.2 Open the PLC I/O Testing Display.

l Both hidden buttons must be pressed simultaneously.

Hidden button Hidden button

6.1.3 Testing Method

l After opening the PC and PLC I/O Testing display, tick the PC output to see if there is a

response from PLC input; press on PLC output to see if there is a response at PLC input.

6.1.4 Hardware Wiring:

l Check or replace the PLC and PC connection cable.

CONNECTOR DB9

PLC()

公

USB TO PC

CONNECTOR DB9