Greater than GRT
Passes power while A is greater than B.
GRT
AGlobal.Temp82BGlobal.HighTemp80
| Tag | After two scans |
|---|---|
| HighTemp | 80 |
| Temp | 82 |
How it works
Passes power while Source A is greater than Source B; blocks it otherwise.
How it's used
Use GRT to act when a value goes above a limit.
GRT
AGlobal.Temp82BGlobal.HighTemp80
Global.FanOTE
| Tag | Value |
|---|---|
| Temp | 82 |
| HighTemp | 80 |
| Fan | 1 |
Temp is above 80, so Fan is on.
Operands
| Operand | Data type | Read or write |
|---|---|---|
| A | DINT, REAL, STRING, CHAR or a number | Reads |
| B | DINT, REAL, STRING, CHAR or a number | Reads |
Common mistakes
- Swapping A and BGRT passes while A is greater than B. Swap them and the test reverses.
Learn it in a lesson
- Comparing valuesIntermediate · 25 min
- Read a sensor over ModbusBeginner · 25 min
- Browse an OPC UA serverBeginner · 25 min