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MELSEC-Q
5 ASSIGNMENT OF I/O NUMBERS
5.6 I/O Assignment by GX Developer
This section describes the I/O assignment using GX Developer.
5.6.1 Purpose of I/O assignment by GX Developer
I/O assignment by GX Developer is used under the following circumstances.
(1) Reserving points when converting to module other than 16-point
modules
You can reserve the number of points in advance so that you do not have to
change the I/O numbers when the current module will be changed to one with a
different number of occupied I/O points in the future.
For example, you can assign a 32-point I/O module to the slot where a 16-point
I/O module is mounted at present.
(2) Preventing I/O numbers from changing when converting modules
You can avoid the change in the I/O numbers when an I/O module other than 16-
point module or intelligent function module (special function module) is removed
due to a malfunction.
(3) Changing the I/O numbers to those used in the program
When the designed program's I/O numbers are different from the actual system
I/O numbers, each module's I/O number of base units can be set to program-I/O
number.
(4) Setting the input response time of input modules and interrupt
modules (I/O response time)
To match the input response time of the input modules and interrupt modules to
the system, select "Type" at the "I/O assignment" tab screen in advance. (For
details, see Section 7.7.)
(5) Setting the switch of intelligent function modules
To set the switch of the intelligent function module, select "Type" at the "I/O
assignment" tab screen in advance. (For details, see Section 7.8.)
(6) Setting outputs during High Performance model QCPU error
To set the output status (retain/clear) of the output modules and intelligent
function modules when the High Performance model QCPU stops the operation
due to a stop error, select "Type" at the "I/O assignment" tab screen in advance.
(7) Setting High Performance model QCPU operation during a
hardware error of intelligent function modules
To set the High Performance model QCPU operation (continue/stop) during a
hardware error of an intelligent function module, select "Type" at the "I/O
assignment" tab screen in advance.
POINT
The I/O assignment is necessary for setting the response time of the input modules
and the switch of intelligent function modules.
Содержание QCPU (Q Mode)
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