Wiring Check; Check Items At Wiring Completion - Mitsubishi MELSEC-Q Series User Manual

5
PROCEDURES AND SETTINGS BEFORE
OPERATION
5.5

Wiring Check

5.5.1
Check the following items after installation and wiring of the QD72P3C3 are completed.
By performing "connection check", "whether the QD72P3C3 recognizes the external I/O
signals, such as near-point dog signal and upper/lower limit signals" can be checked.
The following describes the method of "connection check".
(1) Checking using GX Developer
5
- 12 5.5 Wiring Check

5.5.1 Check items at wiring completion

Check items at wiring completion
• Is the module correctly wired?.................................................."Connection check"
Read the monitor data "
memory batch) and check the read values.
Signal name
External I/O signal
Md.8
[Bit pattern]
Reserved
Upper limit signal
Lower limit signal
Zero signal
Near-point dog signal
(Example) Checking the external I/O signals of Axis 1
(GX Developer screen)
Set the [Buffer memory address]
of " External I/O signal" of
Md.8
Axis 1 in decimal.
The external I/O signal status can also be checked on the [System monitor] screen.
For details, refer to "Section 13.3 External I/O Signal Monitor Function".
External I/O signal" using the monitor function (Buffer
Md.8
Buffer memory address
Axis 1
80
Storage item Status
0: OFF
1: ON
b0 (Upper limit signal ON)
b1 (Lower limit signal ON)
b2 (Zero signal OFF)
b3 (Near-point dog signal OFF)
Axis 2 Axis 3
180 280