Mitsubishi Electronics FX3G User Manual

406

/FX

3GC

/FX

3UC

Series

Programming Manual - Basic & Applied Instruction Edition

14 Handy Instruction – FNC 60 to FNC 69

14.4 FNC 63 – INCD / Incremental Drum Sequencer

Operation

1) Timing chart

Suppose that the following data is written in advance by a transfer instruction:

2) When the command contact turns ON, the output M0 turns ON.
3) When the current value of C0 reaches the comparison value D300, the output M0 is reset. "1" is added to the

count value of the process counter C1, and the current value of the counter C0 is reset.

4) The next output M1 turns ON.
5) When the current value of C0 reaches the comparison value D301, the output M1 is reset. "1" is added to the

count value of the process counter C1, and the current value of the counter C0 is reset.

6) The current value is compared for up to "n (K4)" outputs in the same way (1

≤ n ≤ 64).

7) When the final process specified by "n" is finished, the execution complete flag M8029 turns ON and remains ON

for one operation cycle.
M8029 is used for many instructions as the instruction execution complete flag. Use M8029 as a contact just after
a corresponding instruction.

8) The program execution returns to the beginning, and outputs are repeated.

Caution

1. When specifying digits of a bit device as

As a device number, specify a multiple of 16 (0, 16, 32, 64 ...).

2. Number of occupied devices

Two devices are occupied from a device specified as

. Make sure not to use devices used in another control.

Device storing data

Output

Data value (example)

Example

D300 = 20

+ 1

D301 = 30

+ 1

+ 2

D302 = 10

+ 2

+ 3

D303 = 40

+ 3

…

+ n

− 1

⎯

+ n

− 1

⎯

X000

FNC 63

INCD

D300

K9999

M8013

1 sec clock

X000

Current

value of

M8029 Complete flag

Current

value of