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Theo V

Connect FX2N-AD to FX3GE PLC

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Hi Everybody, I bought a new type PLC Mitsubishi FX3GE with on-board analogue in and ouputs. I like to add 2 extra modules at the right hand side, a FX2N-2AD and a FX2N-2DA. I'm not sure if the adresses to read de data from and to the cards is K0 and K1 since the internal on-board inputs are not using a TO and FROM instruction but using Markers and D8280 to read value of CH1 and D8281. This is very new to me so please anyone...? I'm using GX-Works2 V1.98 with a simple ladder programming. Regards, Theo (reply in Dutch is welcome but English is also no problem)

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The internal - using special registers. This is not new, it's like for left-hand extention of analog inputs or outputs. The difference is just the analog channels are already on-board. The FX2N-2AD and FX2N-2DA - using special instructions RD3A and WR3A accordingly. *) This is an english-"speaking" forum. If each member (from different countries) would write here in his native language, the others can not read posts in topic. So if you have some problem with English, the advice is to use a tool like Google Translator from English into Dutch.

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Just consider the FX3GE = FX3G PLC+FX3U-3A-ADP+FX3U-ENET-ADP will do.

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Inntele, Thank you for the reply. I will try to use the RD3A and WR3A instructions to see if this works. I will not ask for other languages than English, You are right about using an uniform language at this forum. (newbie strat up failure) @ Sparky, I had these FX2N modules in stock so I want to use it. I know that there are also left hand modules with the adapterboard. Thanks so far, Theo

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Theo V, I'll try to answer for Edwin, whom you named as "Sparky" and who did want to say, on my opinion, that the FX3GE base module is just a full equivalent of combination of FX3G base module+ FX3U-3A-ADP analog module + FX3U-ENET-ADP Ethernet module, i.e. simply is 3 in 1. Edited by Inntele

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Hi Inntele, This afternoon I made a test configuration on the workbench with the two extra analogue modules using the RD3A and WR3A instructions. This went very well. (the adresses where as expected K0 and K1) I callibrated the zero and span at the modules because i have 4-20mA sensors and a 0-10V out for a frequency inverter. Only thing I need to do now is to make an average reading for the FX2N-2AD because the reading at the GOT1455 was very fluctuating. The internal I/O where very easy to make the average just one rung! I have an example in the datasheet so I will try this soon to make this work also. If not I will get back here. Thanks to all who replied on my topic. Best regards, Theo

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