Integer Tag
Overview
Holds a single whole number (no decimal places). This is the most common type for PLC/controller registers, counts, status codes, and any other integer reading.
Value
A 32-bit signed integer.
Transform Options
IntTag supports one Transform:
| Transform | Syntax | Effect |
|---|---|---|
| SCALE | SCALE(inMin,inMax,outMin,outMax) | Rescales the raw value from an input range to an output range, using standard linear scaling: output = ((value - inMin) / (inMax - inMin)) * (outMax - outMin) + outMin |
Example: a sensor reports a raw value from 0 to 4095 (a typical 12-bit analog input), and you want the tag to show a 0–100 percentage instead:
SCALE(0,4095,0,100)
A raw reading of 2048 would then be stored as 50.
Type Attributes
IntTag uses the Type Attributes field for one thing: entering U treats an incoming raw/byte value as unsigned rather than signed, before it's converted to the tag's normal (signed) integer. Useful when a device reports a value as an unsigned word and the plain signed reading would come out negative for large values.
Notes
- Change Tolerance applies to IntTag when Capture Changes Only is checked — the value has to move by more than the configured tolerance to count as a change and be captured/published. A tolerance of 0 means any difference counts.