LOGO!8 Data Log

The memory card may be inserted or removed only when the power of the logo is off.

Edit:
In addition, outputs can only be logged if they are used in the program.

Hi Friends,

I am having a doubt with the data log in LOGO! 8, I have connected 0-10V input at the analog inputs (I1-I2 & I7-I8). But when i upload the data log file, i notice that the Digital input log value is sometimes showing 1 instead of 0. The data is inconsistent for the digital input. I am not changing any digital input status. I am only changing the analog input status values. I am not sure why there is inconsistent data at the digital input address. Please see the attached files and provide the feedback. Thank you in advance.

Hello,

and I doubt if you know what you are doing.
Because inputs I1, I2, I7 and I8 have a double function:
Either digital input or analog input. But not both function together.
For example, I2 If you use as analog input (AI4), you can not use the same time as the digital input it in the program.
Have a look at the attachment.
AI4 has the value of 8,64V. According to the manual 1 signal is detected when the voltage > 8.5V for a digital input. That's why shows the Datalog to a 1 in I2.

Hi,

Thank you very much for your reply. It was very helpful. Really appreciate it.

New question published by Kevgray is split to a separate thread with the subject 'No data log is found' - Does anyone know how to fix this?.

Best regards
Jen_Moderator

ixo65

The memory card may be inserted or removed only when the power of the logo is off.

 My correction for newbies: you do not need to switch off the Logo, you just need to stop it (enter the STOP mode) 

unknown user