27 DEVICES
27.1 Device List
449
27
*1 These are the maximum points that can be handled in the CPU module. The number of points actually used differs depending on the
module used.
*2 The default number of points is 16384 for the R120PCPU.
*3 Version restrictions vary according to the operation mode. ( Page 747 Added and Enhanced Functions)
*4 Can be used as a device comment in the SFC program.
*5 The maximum number of points differs depending on the "Link Direct Device Setting" of the engineering tool. Before using the "Link
Direct Device Setting", check the version of the CPU module and engineering tool used. ( Page 747 Added and Enhanced
Functions)
Refresh data
register
Word Refresh data register RD 512K points Changeable Decimal
Nesting Nesting N 15 points Unchangeable Decimal
Pointer Pointer P 8192 points
*2
Changeable ( Page
486 Pointer setting)
Decimal
Interrupt pointer I 1024 points Unchangeable Decimal
Other devices Network No. specification
device
J Unchangeable Decimal
I/O No. specification device U Hexadecimal
SFC block device
*3
BL 320 points Decimal
SFC transition device
*3*4
TR 0 points Decimal
Classification Type Device name Symbol Number of points
of Default
Parameter-set range Notation
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