Public protocol (RS-232C)

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Public protocol (RS-232C)

overview

This article explains how to connect to devices via RS-232C using Mitsubishi Electric's public protocol.

 

 

Compatible models

List of compatible devices

Connection method

Series/Model etc.

Connection Unit

Supported drivers

RS232-C

Q/L/iQ-R series

・RJ71C24

・QJ71C24N

・Equivalent to QJ71C24

 

Mitsubishi Electric (public) -RS-232C

MELSEC-Q/L/iQ-R Series Access Stations 1 to 3

 

[Connection protocol]

MC protocol (Format 1/Format 4)

iQ-F Series FX5U/FX5UC/FX5UJ

・FX5-232ADP equivalent

 

Mitsubishi Electric (public) -RS-232C

MELSEiQ-F series FX5

 

[Connection protocol]

MC protocol (Format 1/Format 4)

QnA Series

・AJ71QC24N

・Equivalent to AJ71QC24

Mitsubishi Electric (public) -RS-232C

MELSEC-QnA Series Access Stations 1-2

 

[Connection protocol]

MC protocol (Format 1/Format 4)

A-Series

Equivalent to AJ71UC24

Mitsubishi Electric (public) -RS-232C

MELSEC-A series

 

[Connection protocol]

MC protocol (Format 1/Format 4)

AnA/AnU series

Equivalent to AJ71UC24

Mitsubishi Electric (public) -RS-232C

MELSEC-AnA/U Extended Address

 

[Connection protocol]

MC protocol (Format 1/Format 4)

FX0 Series

・FX3U-485ADP

・Equivalent to FX0N-485ADP

 

Mitsubishi Electric (public) -RS-232C

MELSEC-FX0 Series

 

[Connection protocol]

MC protocol (Format 1/Format 4)

FX2 Series

・FX3U-485ADP

・Equivalent to FX-485ADP

Mitsubishi Electric (public) -RS-232C

MELSEC-FX2 Series

 

[Connection protocol]

MC protocol (Format 1/Format 4)

 

attention

For combinations of CPU units and link units, please check with the device manufacturer to see if the model combination is actually possible. Also, please check whether communication is possible with the protocol used when connecting with our company for that combination.

 

 

(Reference material) Model list

series

Model etc.

iQ-R series

R04CPU, R08CPU, R16CPU, R32CPU, R120CPU, etc.

Q Series

Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, Q26UDVCPU, Q00UJCPU, Q00UCPU, Q01UCPU, Q02UCPU, Q 03UDCPU, Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU, 20UDHCPU, Q26UDHCPU, Q03UDECPU, Q04UDEHC PU, Q06UDEHCPU, Q10UDEHCPU, Q13UDEHCPU, Q20UDEHCPU, Q26UDEHCPU, Q50UDEHCPU, Q100UDEHCPU, Q00 JCPU, Q00CPU, Q01CPU, Q02CPU, 02HCPU, Q06HCPU, Q12HCPU, Q25HCPU, Q02CPU-A, Q02HCPU-A, Q06HCPU-A

etc.

L-Series

L02SCPU, L02SCPU-P, L02CPU, L02CPU-P, L06CPU, L06CPU-P, L26CPU, L26CPU-P, L26CPU-BT, L26CPU-PBT

etc.

QnA Series

Q2ACPU, Q2ASHCPU, Q2AS1CPU, Q2ASCPU-S1, Q3ACPU, Q4ACPU, Q4ARCPU

etc.

A-Series

A1CPU, A1CPUP21, A1CPUR21, A2CPU, A2NCPU, A2CPUP21, A2CPUR21, A2CPU-S1, A2CPUP21-S1, A2CPUR21-S1, A3CPU, A3CPUP21, A3CPUR21, A1NCPU, A1NCPUP21, A1NCPUP21- S3, 1NCPUR21, A2NCPU, A2NCPUP21, A2NCPUP21-S3, A2NCPUR21, A2NCPU-S1, A2NCPUP21-S1, A2NCPUP21-S4, A2NCPUR21-S1, A3NCPU, A3NCPUP21, A3NCPUP21-S3, A3NCPUR21

etc.

FX0 Series

FX0-14MR, FX0-20MR, FX0-30MR, FX0-14MT, FX0-20MT, FX0-30MT, etc.

FX2 Series

FX2-16MR, FX2-16MS, FX2-16MT, FX2-24MR, FX2-24MS, FX2-24MT, FX2-32MR, FX2-32MS, FX2-32MT, FX2-48MR, FX2-48MS, FX2-48MT, FX2-64MR, FX2-64MS, FX2-64MT, FX2-80MR, FX2-80MS, FX2-80MT, FX2-128MR, FX2-128MT

etc.

FX3U Series

FX3U-128MR/ES, FX3U-128MT/ES, FX3U-128MT/ESS, FX3U-16MR/DS, FX3U-16MR/ES, FX3U-16MT/DS, FX3U-16MT/DSS, FX3U-16MT/ES, FX3U-16MT/ESS , FX3U-32MR/DS, FX3U-32MR/ES, FX3U-32MR/UA1, FX3U-32MS/ES, FX3U-32MT/DS, FX3U-32MT/DSS, FX3U-32MT/ES, FX3U-32MT/ESS, FX3U-48MR/DS, FX3U-48 MR/ES, FX3U-48MT/DS, FX3U-48MT/DSS, FX3U-48MT/ES, FX3U-48MT/ESS, FX3U-64MR/DS, FX3U-64MR/ES, FX3U-64MR/UA1, FX3U-64MS/ES, FX3U-64MT/DS, FX 3U-64MT/DSS, FX3U-64MT/ES, FX3U-64MT/ESS, FX3U-80MR/DS, FX3U-80MR/ES, FX3U-80MT/DS, FX3U-80MT/DSS, FX3U-80MT/ES, FX3U-80MT/ESS

etc.

 

 

Settings Dialog Details (Public Protocols)

RS-232C common

 

Communication Settings

c_plc_0042

 

 

•COMPort
Specify the communication port number to which the PLC is connected.

 

•Transmission speed
Specifies the transmission speed (communication speed) between the PLC and the computer.

 

•Byte Size
Specifies the byte size.

 

•Stop bits
Specifies the type of stop bit.

 

•parity
Specifies the parity type.

 

 

Other settings

c_plc_0044

 

 

•Sum Check
If checked, a sum check will be performed.

 

•protocol
Specifies the format of the protocol to be used.

Communication details

c_plc_0043

 

 

•Read timeout setting
Specifies the maximum time to wait for a response from PLC. If no data is received from PLC after this time has elapsed, reading will be stopped.

 

•Write timeout setting
Specifies the maximum waiting time for sending to PLC. If sending to PLC is not completed within this time, writing will be aborted.

 

•Retry count
When a communication error occurs, the system will retry the specified number of times.

 

•Minimum Communication Interval
Specifies the waiting time on the PC side from receiving the device value from PLC until the next transmission. Normally it is "0".

 

•Error Handling
If you are using a conversion connector to connect to a USB cable, etc., the COM port may be locked and you may not be able to reconnect when you try to do so.
If that's the case, check the box.