Gabriel Franco

Did you format the SD card using the recommended software before creating the image? I followed the procedure some time ago and had to use a different software to format the SD (I might be wrong and had to use it for another purpose or another PLC brand). Anyway, here is the software I have: https://www.sdcard.org/downloads/formatter/

I don´t use hardware scaling. I use linearize ladder function block instead.. The reason: it can be field and on the fly adjusted just changing tag values (X and Y)

How are you scaling the input?

Layers: good idea, I haven´t used them. Other option: right-click the element and z-order it

Correct. I place all the controls stacked on top of each other. By pressing the motor image (or the button or whatever you use to pop-up the control), reset all visibility tags and set the desired one.

You mentioned the manufacturer sent you an application update. You can reset the PLC to its factory default and then load the application from the received file. To factory reset, follow the instructions. https://support.unitronics.com/index.php?/selfhelp/view-article/Unistream-recovery-to-factory-settings-procedure

I designed this Custom Control to control reversible motor. It has motor name, modes (O, P, M) , fwd start, rev start, alarm messages, alarm reset, interlocks status, motor status, close button. Every part is attached to a tag (part of a struct defined to control a motor). e.g, up button: . Then, add the custom control to the screen (in this step, you cannot modify its size), set the specific motor tag (e.g. input conveyor #1) and use a tag visibility to show the control. Set that tag when pressing the device you want to control.

This task can be accomplished by use of "HMI Custom controls" The advantage: you design it just one time and re-use it as many times as needed.

Remote access uses urc file to display some elements. Search for "urc" in the help for instructions.

Modbus addressing can be a little tricky, in your case it could be offset by 1, so try address 0. It´s higly recommended to use any PC Modbus software for easy testing.

To read from the scale head use RHR #3. The start address must be 259 rather than 40259.

The simple answer is no, tag values are not lost.

If the manufacturer offers EthernetIP, then you don´t need those ladder functions, just a few steps to configure the PLC as Ethernet/IP scanner importing the EDS of the device. It will create the structures and IO tags required to comunicate to/from the valve controller. Take a look to the examples that can be downloaded from https://downloads.unitronicsplc.com/Sites/plc/Unilogic/UniLogic_Examples.zip

Here the solution.

Verify that the total number of rise/fall bits used is not greater than allowed. Use View|rise/fall summary menu