mitsubishi fx3u+fx2n 8a/d

[artmierz]

Hi im new in that forum.I try programing mitsubishi fx3u and fx2n 8a/d.
When i set up a/d module to read volts is ok, but i can not read mamp.
My code to set module is TO k0 k0 h3333 k1 it is mean i set up ch1-4 to read mamp. Is it correct or im wrong?
Also i connect input V+ and I+ togheter.
Thank you for any help.

 

[Dariusch]

Hi artmierz,

You have made it right.

BFM # is for the first 4 input signals
H3333 = 4-20mA for CH1-CH4, so that is also ok.

Connecting V1+ and I1+ together is also ok.

Now how do you measure voltage?
Do you have an instrument/transmitter 4-20mA to test with?


Try read the BFM#29 = Error status.
What is the value/ what bits is on.

Can you upload your program or make screendump of the analuge program.

Best regards

Dariusch

 

[artmierz]

Hi. I get sensor witch give me value from 4-20m apm.
To read volts i use second A/D module fx2n 8a/d.
And i write code:
TO k1 h1111 k1
i did not check buffer 29, but i will play today.
Also how i can check it?
I use gx works2.

 

[artmierz]

exactly:
m8002------[to k0 ko h1111 k1] set up first module to volts ch1-4
m8002------[to k0 k1 h1111 k1] set up first module to volts ch5-8
m8002------[to k0 k2 k100 k8] average time 100times/sec.for 1-ad
m8002------[to k1 k0 h1133 k1] set up second module ch1&2 -mamp, ch3&4 volts
m8002------[to k1 k1 h1111 k1 set up second module ch5-8 volts
m8002------[to k1 k2 k100 k8] average time 100times/sec for 2-nd module

m8000-----[bmov u0\g10 d3 k7] read 7-data from first module and store in d3-d9
m8000-----[bmov u1\g10 d1 k2] read data from second module and store in d1-d2

 

[Dariusch]

Hi artmierz,

GX Works2

Go to "Online" -> "Monitor" -> "Device/Buffer Memory Batch"
Click "Buffer Memory" -> Type in adress for module and the BFM# = 29

And you are sure the sensor is working?
Have you measured mA on the wires to the module?
It should show min. 4mA.

/Dariusch