MITSUBISHI F / F1 / F2Serial Communications

Procedure for connecting PLC to PC

Requires: F2-20F1 & PCX-KIT1

And MELSEC MEDOC®

Click to Begin Presentation….

Components Needed:

• Programming Software for PC – – MELSEC MEDOC

• Insure that MELSEC MEDOC has been installed on your laptop or desktop PC. When started, the initial screen should appear like this:

MEDOC Programming Software

Components Needed:

• 1) Programming Software:– MELSEC MEDOC

• 2) Interface (I/F) to connect to programming port on F / F1 / F2

F2-20GF1 I/F

F2-20GF1 I/F

F2-20GF1 I/FThis device is obsolete and quite rare.There were at least two other Interface units, either of which would work in place of the F2-20GF1.They are F-LINK and A-LINK. As these are so rare, we will concentrate on the F2-20GF1 for this procedure.

Components Needed:

• 1) Programming Software:– MELSEC MEDOC

• 2) Interface (I/F) to connect to programming port on F / F1 / F2

•3) Serial Protocol Converter – i.e. PCX-KIT1.

PCX-KIT1

PCX-KIT1

PCX-KIT1This kit from Mitsubishi Tech Support incorporates a connector (adapter) which:

connects to the DB25 connector on top of the F2-20GF1,

Converts the Serial Protocol from RS422 to RS232C,

Provides Power (12VDC) to the Converter,

And, Provides connection (DB9) to your computer.

PCX-KIT1

• 1) Remove the access cover on your Mitsubishi PLC.

Mount F2-20GF1

• The F2-20GF1 mounts on the port (also used for hand-held programmer). The two blue connectors fit together, and the two “sliders” on each side of the F2-20GF1 hold the I/F securely to the PLC.

• Note the end of the F2-20GF1 is flush with the end of the PLC (mentioned just as an aid to positioning).

F2-20GF1 Mounting

F2-20GF1 Mounting

F2-20GF1NOTE That the DIP switches are set to 19.2K BAUD. The setting of this DIP switch should agree with the BAUD rate you choose in MEDOC (Transfer) Setup!!!

Connection…

• 1 Install F2-20GF1 on PLC• 2 Slide “tabs” to secure I/F on PLC• 3 Connect cable to I/F

What We Have So Far…

12VDC Power

WAIT TO PLUG IT IN, BUT DON’T FORGET TO…..

Connection…• 1 Install F2-20GF1 on PLC• 2 Slide “tabs” to secure I/F on PLC• 3 Connect cable to I/F• 4 Plug 12VDC Transformer into

120VAC source.• 5 Insure that connections are secure

on “electronics box” (the actual I/F).• 6 Connect I/F to your PC COM Port.

Complete the Connection !

• Your installation should like something like this…

Connect the Power !

• Now is the right time to connect the 12VDC to the I/F…

F2-20GF1 in Action.

Briefly, all the RED LEDs come on, then after the F2-20GF1 determines which unit to which it is connected, that LED comes on solid. In this case, the F1/F2 LED is lit.

Putting It All Together…

• You’ve got MEDOC Running on your PC…

• You’ve got the F2-20GF1 and the PCX-KIT1 connected from the PC to the PLC…

• And you’ve remembered to plug in the 12VDC …

Now the hard part begins!

• We at Lighthouse PLCs, Inc. hope you will benefit from this tutorial/primer.

• Communications with the older Mitsubishi (as well as other brand) PLCs is rapidly becoming a lost art.

• And, relevant manuals and documentation are becoming as rare as the PLCs themselves.

• Thank You for your patronage!

LIGHTHOUSE PLCs, INC.2549 Rosebay Street

Eugene, Oregon 97402-6148

U.S.A.

P: (541) 463-1496

F: (541) 463-1497

eM: info@lpinc.us

http://www.lighthouseplcs.com

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