Mitsubishi Electronics FX3G User Manual
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FX
3S
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3G
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3GC
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3U
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3UC
Series
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.5 Introduction of Devices Constructing PLC
8. Index registers (V)(Z)
→ Refer to Section 4.11.
Among registers, there are index type registers V
and Z used for modification.
A data register V or Z is added to another device as
follows:
[In the case of "V0, Z0 = 5"]
D100V0 = D105, C20Z0 = C25
and Z used for modification.
A data register V or Z is added to another device as
follows:
[In the case of "V0, Z0 = 5"]
D100V0 = D105, C20Z0 = C25
← Device number +
V or Z value
Data registers and index registers are used for
indirectly specifying the set value of timers and
counters, or used in applied instructions.
Data registers and index registers are used for
indirectly specifying the set value of timers and
counters, or used in applied instructions.
9. Pointers (P)(I)
→ Refer to Section 4.12.
Pointers are classified into branch pointers and
interrupt pointers.
• A branch pointer (P) specifies the jump
interrupt pointers.
• A branch pointer (P) specifies the jump
destination of the conditional jump CJ (FNC 00) or
the call subroutine CALL (FNC 01) instruction.
the call subroutine CALL (FNC 01) instruction.
• An interrupt pointer (I) specifies the routine of an
input interrupt, timer interrupt or counter interrupt.
10.Constants (K)(H)(E)
→ Refer to Chapter 5.
Constant numerical values used in the PLC, "K"
indicates a decimal integer value, "H" indicates a
hexadecimal value, and "E" indicates a real number
(floating point data).
Constants are used as set values or present values
of timers and counters, or operands for applied
instructions.
indicates a decimal integer value, "H" indicates a
hexadecimal value, and "E" indicates a real number
(floating point data).
Constants are used as set values or present values
of timers and counters, or operands for applied
instructions.