Communication between Mitsubishi FX3U PLC and SCADA via RS485BD

Hi Friends, Here i want share with you a tutorial on how to establish Communication between Mitsubishi FX3U PLC and Elipse SCADA via RS485 BD 

The required Items for the setup is as follows

Sr. no.	Material
1	PLC Type : FX Series
2	CPU      : FX3U
3	Module   : FX3U RS485BD
4	SCADA Make : Elipse
5	SCADA Type : 20/300/ Unlimited Tags
6	Other

Figure Connection between PC(SCADA) & PLC(FX3U)

 The required cables are as follows

 

Sr. no.	Item	Description
1	Medoc cable (MITSU-CAB2A)	Prog. cable for FX PLC
2	Converter Cables *1	Comm. Cable for PC ,PLC & Converter

 *1 To connect the SCADA to the controller the RS 232 to RS 485 Converter  is used. The Converter is having RS422/485 port for connecting to PLC & RS232 port on other side for connection to PC.

As the FX-485BD Port is used, PLC parameter settings are required on PLC side.
PLC Parameter Configuration for Channel1:
1. Baud Rate: 9600.
2. Data Bits: 7 bits
3. Parity : Even
4. Stop Bit: 1 bit
5. Sum Check: Yes
6. Transmission Control: Without CR, LF
7. H/W Type: RS485
8. Station No.: 01
PLC Communication Parameter Settings using GX Developer:

PLC Communication Parameter Settings using GX Developer

 SCADA Program settings

 SCADA Driver Details:

 

Driver	MELSEC-A.dll
Version	1.02
Latest Update	2004.10.20
Driver Help	Melsec-A_US.pdf

 

Driver Setting Parameters:
P1: 1 (Comm. Port)
P2: 3721(Comm. Parameters: 9600 bps, 7 data bits, Even
Parity & 1 stop bit)
P3: 300 (Timeout in milliseconds)
P4: 10 (For RS485)
Other needed Configuration is done through “Extra  Configuration “Dialog as follows:

• Snap shot of Driver Settings in Elipse SCADA software
 

Step 1: Enter the Driver Parameters P1-P4.

Driver Parameters

Step 2: Click on “Extra” button to edit settings.

 Step3: In “Extra” menu select “Protocol” option to edit Protocol  Settings.

“Protocol” option

 Tag Addressing Parameters:
 

The Tags are generated by using N1-N4 parameter settings as follows:
 

N1: Station Number (e.g.: 1)

N2: CPU Number (normally 255)

N3: Variable Type (e.g.: 14 for D Register)

N4: Variable Address (e.g.:10 for D10 Register)

Scan: User Defined
 

• Snap shot of Tag Addressing Parameters in Software

 

Tag Addressing Parameters

If you like the this Tutorial on PLC please Share this.

 

Read More..

Communication Between two E1000 HMI and mitsubishi Fx2n PLC

Connection between 2 E-Terminals and FX2N PLC.

 The required material for the setup is as follows

Sr. no.	Material
1	PLC           :FX Series
2	CPU           :FX2N
3	HMI          : E1101 ,E1071
4	HMI S/W    :E-Designer Ver: 7.31

  Two E-Terminals are connected to FX-2N PLC using MISTU- CAB14A       

 and MISTU-CAB 6Aa

 

 The required cables are as follows

    

Sr. no.	Item	Description
1	MISTU-CAB 6Aa	Prog.Cable For E-Terminal And Comm. Cable between E1071 and E-1101
2	MISTU-CAB 14A	Comm. Cable for E-Terminal to FX2N PLC

 

E1101 Program Setting

STEP 1: Select Controller FX and FX Series Serial driver for Controller.

 Snapshot of Controller 1 Setting in E1101

 Put Controller 1 in COM 1 (RS422) Port in Peripheral Configuration as shown below.

 

E1071 Program Setting

STEP 1: Select FX-Series serial Controller in COM 2 (RS232) Port as                shown below.

Read More..