ISO7241A output

Viktorija Cecil

Team, attached are two oscilliscope screen captures. The green channel is the input to the isolator, and the yellow channel is the output. The isolator is set up in the middle of a half duplex rs485 communication line. Do you know why the output only works some of the time?

over 13 years ago

0 Thomas Kugelstadt over 13 years ago

TI__Mastermind 28265 points

Victorija

please post this onto the internal Industrial Interface forum where I can explain the details.

Thank You,

Thomas

0 Jayant Deshpande over 13 years ago in reply to Thomas Kugelstadt

Expert 1495 points

Can you please share the explanation for the benefit of other users ??

0 Thomas Kugelstadt over 13 years ago in reply to Jayant Deshpande

TI__Mastermind 28265 points

In the data sheets of all A-versions of the tripple and quad isolators we have posted a product notice that the A-version have an internal design fault.which causes an anomaly. Therefore we offer the faster C-version at the same price as the A-version but proper filter operation.

so please exchange your A-version with the C-version of hte same isolator and I think your interface will work fine.

Thanks, Thomas