Programming in GX Developer.

hinddhindsa · Jun 9, 2013

Dear friends,i am programming In GX developer for controlling of 3 booster pumps by 3 Danfoss VFDs based on water pressure in pipe,2 Bar is cut in 4 Bar cut off pressure.Pressure transducer is of 0-10 bar scale with 4-20 ma output.which Mitsubishi plc and HMI will be suitable for me. do i need to buy A/D,D/A modules separately.what will be the addressing of Analog i/o in programming.? How can we compare the plc analog input value with FIXED SET POINT VALUE.Please help me.thanks in advance.i am new with GX developer.

Donnchadh · Jun 9, 2013

Hi

It's been a while but I think the fx2n would work but it depends on your digital I/o also. You. We'd go set up a TO command to set up your analogue card an then a FROM to read the values. You can use a cmp to compare and enter a K 4000 if you wanted to compare against the value 4000
You could also use a D register and just enter the value in this

Donnchadh

hinddhindsa · Jun 9, 2013

So i need one A/D and one D/A module ?.What the address i would have to define for analog input 1 or analog input 2 and analog outputs ?. does it work the same as in other PLCs.

hinddhindsa · Jun 9, 2013

more details- My digital input would be 5, digital outputs would be 3.

hinddhindsa · Jun 9, 2013

in CMP function what should be the input device. for S,S,D what the value i should give. and as you told if i want to compare with the fix value 4000 etc, then shall i put that in S2 ?.and what the device name and device type(X,Y,M etc) should be selected.

Donnchadh · Jun 9, 2013

Hi

You will need a A\D and a D/A one for your analogue input and the second for a analogue output .

I am in the office tomorrow and I will find some code were I used the TO and FROM and cmp command and send them to you

Donnchadh

Donnchadh · Jun 10, 2013

Hi

I have some information for you b ut its toi big to upload.
If you send me a priviate message with a mail address I can send it to you.

Donnchadh

hinddhindsa · Jun 11, 2013

Yes sir.i sent you in private message.please reply me.thanks.

Donnchadh · Jun 11, 2013

Hi

Just sent it

Donnchadh

hinddhindsa · Jun 22, 2013

If i am connecting analog input1 at channel1 Of a/d module then what will be the addressing of the Buffer memory from which i have to take FROM function value.?.

Programming in GX Developer.

hinddhindsa

Member

Donnchadh

Lifetime Supporting Member

hinddhindsa

Member

hinddhindsa

Member

hinddhindsa

Member

Donnchadh

Lifetime Supporting Member

Donnchadh

Lifetime Supporting Member

hinddhindsa

Member

Donnchadh

Lifetime Supporting Member

hinddhindsa

Member

Similar Topics