Index Register(Z) / Standard Device Resister(Z); Index Register (Z) - Mitsubishi Q00JCPU User Manual

10
DEVICE EXPLANATION

10.6 Index Register(Z) / Standard Device Resister(Z)

10.6.1 Index Register (Z)

(1) Definition
Universal
UD
Note10.16
(2) Bit configuration of index
Note17
Universal
For the Universal model QCPU, the serial access format file register (ZR) can perform 32-bit
UD
indexing with using 2 points of index register.
Note10.16
Index registers are used in the sequence program for indirect setting (index
qualification) designations.
An index register point is used for index modification.
X0
SM400
The number of index register points is as described below.
Basic model QCPU: Z0 to 9 (10 points)
High Performance model QCPU,
Process CPU, Redundant CPU: Z0 to 15 (16 points)
Universal model QCPU : Z0 to 19 (20 points)
(a) Bit configuration and write/read units
The index register, configured in 16 bits per point, writes/reads data in units of 16
bits.
b15
Zn
POINT
Index register data are handled as signed data.
F or HEX (hexadecimal), 0000
significant bit is a sign bit, the range of a value that can be specified is -32768 to
32767.
10.6 Index Register(Z) / Standard Device Resister(Z)
MOVP K5 Z0
BCD D0Z0 K4Y30
Index registers consist of 16 bits
per point.
Figure 10.57 Index register
registerNote17
to
The most significant bit is sign bit.
Figure 10.58 Bit configuration of index register
to FFFF can be stored. However, since the most
H H
10.6.1 Index Register (Z)
Note10.16
b0
10
9
10
11
12
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