Real Data From PLC to Analog Input in the Robot

MartinesXXX

Hi all,

i am sharing I/O values between a S7-1200 and Abb robot IRC5 through Profinet I/O)

If i send  a 1 ( Data Type INT in S7-1200) i recieve 1.5 in the ABB robot (Analog Input) (i swap the bytes correctly)

and if i send a 1.0 (data type Real in S7-1200) i recieve  1.065.353.000 in the ABB robot (Analog Input) with same swaping as before. Without swaping robot recieve  32831.5

i want to send real values and read correctly in the ABB robot, any clue?

thanks in advance 

DenisFR

Hello,

Don't forget to set Min and Max Logical Value.

What I've done:

      -Name "AiOffS_X_TPB1" -SignalType "AI" -Device "PN_Internal_Device"\
      -DeviceMap "208-223" -MaxLog 327.67 -MinLog -327.68

lemster68

What bit size have you configured?  8, 16?  You mentioned swapping the bytes so I have to ask.  If it is a matter of big-endian to little-endian then you do not have to map starting with the lower bit, you can map from, for example, 32-17.

MartinesXXX

the analog input is a32 bits signal. If i define the limtits, for example -10000 and 10000, 0 is 0 but 100.0 is 5230.17 and 300 is 5546, the scale is not linear

lemster68

Can you post the actual part of the eio.cfg for that signal?

DenisFR

Hello,

32bits = -2147483648 to 2147483647

So you can set it to -MaxLog 21474.83647 -MinLog -21474.83648
Don't use Real in PLC because this is a special format.