Mitsubishi Electronics QJ71C24/-R2, QJ71C24N, SH-080007 manual 84

4 SETTINGS AND PROCEDURES PRIOR TO OPERATION

4.3 Part Names and Functions

MELSEC-Q

Part names of Q series C24 are shown below.

		QJ71C24N						QJ71C24N-R2
		QJ71C24			( 1)			QJ71C24-R2 ( 2)
	QJ71C24N							QJ71C24N-R2
		RUN		ERR.					RUN	ERR.
1)		NEU.		NEU.			1)		NEU.	NEU.
	CH1		SD	SD		CH2		CH1	SD	SD	CH2
			RD	RD					RD	RD

2) CH1 RS-232

CH1 2) RS-232

			SDA
					1
			SG	2
			SDB		3
3)		(FG)				2)	CH2
				4			RS-232
			RDA		5
		(FG)		6
			RDB		7
			CH2
			RS-422
	/485						QJ71C24N-R2

QJ71C24N-R4

	QJ71C24N-R4
		RUN	ERR.
1)		NEU.	NEU.
	CH1	SD	SD	CH2
		RD	RD

CH1 RS-422/485

SDA

SDB

4) RDA

RDB SG

(FG)

CH2 RS-422/485

SDA

SDB

4) RDA RDB SG

(FG)

QJ71C24N-R4

1 The external diagrams of the QJ71C24 are the same as QJ71C24N (except for the model name). 2 The external diagrams of the QJ71C24-R2 are the same as QJ71C24N-R2 (except for the model

name).

	Name	Contents
1)	Display LED	Display LED (For details, see (1).)
2)	RS-232 interface	RS232 interface for serial communication with external
		devices (D-Sub 9 pin)
3)	RS-422/485 interface	RS422/485 interface for serial communication with external
		devices (2-piece terminal block)
4)	RS-422/485 interface	RS422/485 interface for serial communication with external
		devices (2-piece plug-in socket block)

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