XE Series

This TechTip is about using a Weintek HMI as a large digit display with numbers bigger than the permitted "255" for a numeric object. In order to achieve this, we'll split the number into ones, tens, hundreds and thousands using modulo operations in a macro and use the resulting digits with word lamps.
Leading Zeros:

No Leading Zeros:

The 7 segment numbers (0-9 plus a blank) created for this project are available from on the links below:
0 1 2 3 4 5 6 7 8 9 Blank (open in new tabs)
These were…

In this TechTip, we're looking at using dynamic limits in numeric objects, alarm colours, and using a macro to calculate the limits based on a +/- tolerance.

In the demo program, the "Actual" value is in LW-0, the "Target" is in LW-2, "Tolerance" in LW-4 and LW-10 & LW-12 are Lower and Upper limits respectively.

The macro code deals with the case of a 0 target, and also negative target and negative limits:

macro_command main()

float target = 0 //…