Mitsubishi Electronics QD75D ユーザーズマニュアル

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MELSEC-Q

12 CONTROL SUB FUNCTIONS

[4] Setting the M code output function

The following shows the settings to use the "M code output function".

(1) Set the M code No. in the positioning data "

Da.10

M code".

(2) Set the timing to output the M code ON signal (X4, X5, X6, X7).

Set the required value in the following parameter, and write it to the QD75.

The set details are validated at the rising edge (OFF ON) of the PLC READY

signal (Y0).

Buffer memory address

Setting item

Setting

value

Setting details

Axis

Pr.18

M code ON signal
output timing

Set the timing to output the M code ON signal.
0: WITH mode
1: AFTER mode

177

327

477

Refer to Section 5.2 "List of parameters" for setting details.

[5] Reading M codes

"M codes" are stored in the following buffer memory when the M code ON signal

turns ON.

Buffer memory address

Monitor item

Monitor

value

Storage details

Axis

Md.25

Valid M code

The M code No. ( Da.10 M code) set in the

positioning data is stored.

808

908 1008 1108

Refer to Section 5.6 "List of monitor data" for information on the storage details.

The following shows a sequence program example for reading the "

Md.25

Valid

M code" to the PLC CPU data register (D110). (The read value is used to

command the sub work.)

Read M codes not as "rising edge commands", but as "ON execution

commands".

M code ON signal

D110

K808

FROM

ON execution command

D110: valid M codes

Example