Manuals > Device Connection Guide > Mitsubishi Electric > Open Protocol (RS-232C)

About the connection example

Please see below for an example of connection settings for this driver.

Applicable models etc.

explanation

This is an example of connection settings with the QnA series via RS-232C.

Device List

The compatible devices are as follows (see here for how to view the device list).

device	keyword	Start address	explanation	unit	reading	Writing
Input Relay	X	000000	Hexadecimal	bit	○	○
Output Relay	Y	000000	Hexadecimal	bit	○	○
Internal Relay	M	000000	Decimal	bit	○	○
Special Relay	SM	000000	Decimal	bit	○	○
Latching Relay	L	000000	Decimal	bit	○	○
Annunciator	F	000000	Decimal	bit	○	○
Edge Relay	V	000000	Hexadecimal	bit	○	○
Link Relay	B	000000	Hexadecimal	bit	○	○
Special Link Relay	SB	000000	Decimal	bit	○	○
Step Relay	S	000000	Decimal	bit	○	○
Timer Contact	TS	000000	Decimal	bit	○	○
Timer coil	TC	000000	Decimal	bit	○	○
Integration Timer Contact	SS	000000	Decimal	bit	○	○
Accumulator timer coil	SC	000000	Decimal	bit	○	○
Counter Contact	CS	000000	Decimal	bit	○	○
Counter coil	CC	000000	Decimal	bit	○	○
Timer current value	TN	000000	Decimal	word	○	●
Current value of the integration timer	SN	000000	Decimal	word	○	●
Counter current value	CN	000000	Decimal	word	○	●
Data Register	D	000000	Decimal	word	○	●
Special Registers	SD	000000	Decimal	word	○	●
Link Register	W	000000	Hexadecimal	word	○	●
Special Link Register	SW	000000	Hexadecimal	word	○	●
Index Register	Z	000000	Decimal	word	○	●
File Register (Current block)	R	000000	Decimal	word	○	●
File Register (Sequential number)	ZR	000000	Hexadecimal	word	○	●
File Register (Sequential number)	ZZR	0000000	Decimal	word	○	●

When specifying an address for a ZR (file register) in decimal notation, use "ZZR".

About the access station

There are two connection methods supported for connecting to the QnA Series CPU, depending on the network configuration. An access station is a connection station that connects to a personal computer via a connection station. When connecting to an access station, refer to the setting example below.

Access Station 1: When you want to communicate with a PLC connected to a PC

c_plc_0049

Select the driver for access station 1.

c_plc_0084

Access station 2: When you want to communicate with a PLC connected via a network from access station 1

c_plc_0051

Select the driver for access station 2.

c_plc_0085

Add a driver for access station 2, and in the unit's communication settings, set it to connect to access station 1. Then add a folder, and in the folder's communication settings, set the connection parameters to access station 2.

c_plc_0053 　　　 c_plc_0054

QnA series equivalent to AJ71QC24

QnA series equivalent to AJ71QC24