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

Connection example [Q series]

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

Connection example [iQ-R series]

This is an example of connection settings with the iQ-R 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

When connecting to the Q/L series CPU, three connection methods are supported depending on the network configuration. An access station is a connection station that connects to a personal computer via a connection station.

If you are connecting to an access station, please 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_0050

If you want to communicate with the unit one-to-one, select access station 1. If you do not want to use an indirect connection, select access station 1.

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_0052

Add the driver for access station 2 and set the unit's communication settings to connect to access station 1.

Add another folder and set the connection parameters to access station 2 in the folder's communication settings.

c_plc_0053 　　　 c_plc_0054

Access station 3: When you want to communicate with a PLC connected via a network from access station 2

c_plc_0056

c_plc_0055

Add the driver for access station 2 and set the unit's communication settings to connect to access station 1.

Add another folder and set the connection parameters to access station 2 in the folder's communication settings.

c_plc_0053 　　　 c_plc_0057

Q/L/ iQ-R series equivalent to QJ71C24

Q/L/ iQ-R series equivalent to QJ71C24