Mitsubishi Electronics FX3G User Manual

414

/FX

3GC

/FX

3UC

Series

Programming Manual - Basic & Applied Instruction Edition

14 Handy Instruction – FNC 60 to FNC 69

14.8 FNC 67 – RAMP / Ramp Variable Value

• After transfer is completed, the instruction execution complete flag M8029 turns ON, and the

value is

returned to the

value.

• When acquiring the operation result at a constant time interval (constant scan mode)

Write a prescribed scan time (which is longer than the actual scan time) to D8039 and set M8039 to ON to select
the constant scan mode in the PLC.
For example, when "20 ms" is written to D8039 and "n" is set to 100, the

value will change from

in 2 seconds.

2. Operation of the mode flag (M8026)

In FX

/FX

3UC

PLCs, the contents of

are changed as follows depending on the ON/OFF status of the mode

flag M8026.
In FX

/FX

3GC

PLCs, the contents of

are same as the case "2) When M8026 is ON" below regardless of

the ON/OFF status of the mode flag M8026.
1) When M8026 is OFF

2) When M8026 is ON

Related devices

→ For the instruction execution complete flag use method, refer to Subsection 6.5.2.

*1.

M8026 is available only in FX

/FX

3UC

PLCs, and is cleared when the PLC mode switches from RUN to

STOP.

Caution

1. When specifying a latched (battery backed) type device as

When setting PLC to the RUN mode while the command input is ON, clear

in advance.

Device

Name

Description

M8029

Instruction
execution complete

Turns ON when

becomes equivalent to

after "n" operation cycles.

M8026

RAMP mode

Refer to the operation of the mode flag M8026 described above.

(M8029)

Command

(M8029)

Command

(M8029)

Command