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CHAPTER9 DEVICES
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9.2 Internal User Device
9 - 3
9.2 Internal User Device
(1) Definition
Internal user devices can be used for various user applications.
(2) Points for internal user devices
The default values can be changed in the Device tab of the PLC parameter dialog box.
However, the points for the input (X), output (Y), and step relay (S)
Note9.1 cannot be changed.Note1
When changing device points, note the following.
• Set each device in increments of 16 points.
• The maximum number of points for a bit device is 32K.
For an internal relay and link relay, the maximum number of points can be set up to 60K.
Note9.2
• Up to 29K words can be set for total internal user devices.
• One point set for the timer, retentive timer, or counter must be regarded as two points (one for coil and one
for contact).
Figure 9.1 Device tab of the PLC parameter dialog box
Note1
Default
Most of the default device
points can be changed.
Note9.1
The points for the step relay (S) can be changed to 0 if the serial number (first five digits) of the Universal model QCPU
is "10042" or later. ( Section 9.2.9)
Universal
Note9.2
This applies to the Universal model QCPU when the first five digits of the serial No. is "10042" or later.
Universal