Common Functions; Outline Of Common Functions; External I/O Signal Switching Function - Mitsubishi Electric MELSECQ Series User Manual

12 COMMON FUNCTIONS

CHAPTER 12 COMMON FUNCTIONS

12.1 Outline of common functions

Common function
External I/O signal logic
switching
External I/O signal monitor

12.2 External I/O signal switching function

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This chapter details the common functions of the QD70.
"Common functions" are executed according to the user's requirements, regardless of
the control system, etc. These common functions are executed by GX Developer.
For details of GX Developer, refer to the GX Developer Operating Manual.
The following table shows the functions included in the "common functions".
Details
This function changes the external I/O
signal logic according to the device
connected to the QD70.
This function monitors the states of the
external I/O signals.
This function switches the signal logic according to the equipment connected to the
QD70.
The following external I/O signals can be changed in logic.
I/O class
Input
Output
The following will be described for the "external I/O signal logic switching function".
[1] Setting details
[2] Precautions for setting
[1] Setting details
Make switch setting (intelligent function module switches) of the "I/O assignment
screen" PLC parameter of the QCPU using GX Developer. For details of the
setting, refer to "Section 5.6 Switch setting for intelligent function module".
[2] Precautions for setting
(1) The values set are made valid after power-on or programmable controller
CPU reset.
They cannot be changed during operation.
(2) If each signal logic is set erroneously, the operation may not be carried out
correctly.
Before setting, check the specifications of the equipment to be used.
search engine
Switch setting on the QCPU PLC parameter "I/O
assignment" screen using GX Developer
(Intelligent function module switches)
This function monitors the external I/O signal monitor
information in the module's detailed information
which can be displayed on the system monitor of GX
Developer.
Signal name
Zero signal
Near-point dog signal
Pulse output F
Pulse output R
Deviation counter clear
MELSEC-Q
Means
Symbol Remarks
PGO
DOG
of the symbol indicates
PULSE F
the axis No. (1 to 8).
PULSE R
CLEAR
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