Jump to content

Recommended Posts


im setting up communication with a new scale head using Modbus ip. i am able to connect the plc and the scale head but am having trouble when using the Preset holding registers to send a command read the weight and the Read input registers to read the values from the scale. I'm trying to use command # 0 . from the command list and using the Register address as the start of the vectors but it is not working so I'm leaning toward it is not right. if any one could point me in the right direction i would greatly appreciate it. image.thumb.png.93213b4e26943aeac3cd3a4a7f093b15.pngimage.thumb.png.43250c1d9d36b41e272a0296d6aedfe9.pngimage.png.a2b8ed83351a9213997dfed2edc13dc9.pngimage.png.e197196663238230d7e30c9bdc177380.pngimage.png.5d106c383b321ce47a85dd2ea126dc76.png

Link to comment
Share on other sites


I changed the start address to 259 and am using a RHR#3 , when i keep the write address as 40001 it errors out and cannot establish connection. ive changed to 1 and it does not error out but i do not get anything when i read the scale. what should my write address be? 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...