Index Register [V And Z]; 2.10.1 Numbers Of Index Registers - Mitsubishi Electric MELSEC-Q Structured Programming Manual

FXCPU Structured Programming Manual
[Device & Common]
2.10

Index Register [V and Z]

Index registers can be used in the same way as data registers.
But they are special registers because they can change device numbers and numeric values in a program
when combined with another device number or numeric value used as operands in applied instructions.

2.10.1 Numbers of index registers

The table below shows index register (V and Z) numbers. (Numbers are assigned in decimal.)
When only "V" or "Z" is specified, it is handled as "V0" or "Z0" respectively.
1. FX /FX /FX
3S 3G 3GC
FX /FX /
3U 3UC
FX 3G /FX 3GC /
FX PLCs
3S
*1. The characteristics about latch (backup) against power interruption cannot be changed by
parameters.
2. FX /FX /FX
1S 1N 1NC
FX PLCs
1S
FX 1N /FX 1NC
PLCs
FX /FX
2N 2NC
PLCs
*1. The characteristics about latch (backup) against power interruption cannot be changed by
parameters.
3. FX /FX /FX
0S 0 0N
FX 0S /FX 0
PLCs
FX PLCs
0N
FX U /FX 2C
PLCs
*1. The characteristics about latch (backup) against power interruption cannot be changed by
parameters.
/FX /FX PLCs
3U 3UC
Index type
V0(V) to V7, Z0(Z) to Z7
*1
16 points
/FX /FX PLCs
2N 2NC
Index type
V0(V) to V7, Z0(Z) to Z7
*1
16 points
V0(V) to V7, Z0(Z) to Z7
*1
16 points
V0(V) to V7, Z0(Z) to Z7
*1
16 points
/FX /FX PLCs
U 2C
Index type
V, Z
*1
2 points
2 Devices in Detail
2.10 Index Register [V and Z]
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