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CHAPTER8 PARAMETERS
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8.1 PLC Parameters
*1: When changing the device points, new setting must not exceed the refresh ranges of network modules or the auto refresh ranges of
intelligent function modules.
If a new device point setting exceeds the corresponding device range, the data may be written to another device or an error may occur.
*2: When a device latch range is set, the scan time increases.
When latching a device, consider the increase in the scan time. ( Section 10.1.2)
*3: 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.
*4: Available only when the serial number (first five digits) of the Universal model QCPU is "10042" or later.
*5: When using the index register as a local device for the Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q13UDHCPU, Q26UDHCPU, or
Built-in Ethernet port QCPU, check the versions of the CPU module and GX Developer. ( Appendix 2)
*6: Not available for the Q00UJCPU.
Table8.6 Device setting list (continued)
Item
Parameter
No.
Description Setting range Default Reference
File register
extended
setting
*6
Device points 2000H
Set points for the file register
(ZR), extended data register
(D), and extended link register
(W).
Point assignment to the file
register (ZR), extended data
register (D), or extended link
register (W). Assign part of the
points of the file register to the
extended data register and
extended link register.
Blank
Section 9.1,
9.8
Latch (1) start/end
(Latch clear valid)
2004
H
Set a latch range (start and
end device numbers), which
can be cleared by remote latch
clear operation.
Each latch range for the file
register (ZR), extended data
register (D), or extended link
register (W).
Blank
Section 3.4,
6.3
Latch (2) start/end
(Latch clear invalid)
2005
H
Set a latch range (start and
end device numbers), which
cannot be cleared by remote
latch clear operation.
Each latch range for the file
register (ZR), extended data
register (D), or extended link
register (W).
Blank
Section 3.4,
6.3
32 bit Indexing
*4
2000H
Select Z or ZZ device for 32-bit
indexing.
Z0 to Z18 (when using Z device) Use Z
QCPU
Programmin
g Manual
(Common
Instructions)