TOTALIZER Block Logic Documentation

Overview

The TOTALIZER block is designed to continuously accumulate a process value over time. It is used in scenarios where total quantity needs to be calculated based on instantaneous values, such as flow, energy, or mass.

The block accounts for time-based integration and allows flexible configuration using time units (seconds, minutes, hours) and an optional conversion factor. It also provides a reset mechanism and outputs the accumulated total in real-time.

---

Logic Block Illustration

• The block integrates the input process value PV by multiplying it with the cycle time.
• This gives a running total over time, similar to a trapezoidal integration.
• If RESET = TRUE, the total value is reset to 0.0.
• The logic assumes PV is in consistent units (e.g., L/s or m³/h).

Showing the Shift Totalizer block in the above picture.

In the above picture, we are showing that how to use the Totalizer block

---

Pins Information

Signal Name	Type	Description
PV	REAL	Process value to be totalized (e.g., instantaneous flow rate)
enTotalTime	INT	Time base selection: 0 = Seconds 1 = Minutes 2 = Hours
CONV_FCTR	REAL	Optional conversion multiplier for PV
CycleTime	REAL	PLC cycle time in seconds
RESET	BOOL	When TRUE, resets totalized value to zero
TOTAL	REAL	Accumulated total value output

---

Operational Behavior

1. Accumulation Logic:
2. On each cycle, the block calculates: INCREMENT = PV × CONV_FCTR × CycleTime

3. INCREMENT is added to the TOTAL, adjusted according to enTotalTime.

4. Time Base Handling:

5. enTotalTime = 0: Totalization in seconds
6. enTotalTime = 1: Totalization in minutes → internal increment divided by 60

7. enTotalTime = 2: Totalization in hours → internal increment divided by 3600

8. Reset Logic:

9. If RESET = TRUE, the total value TOTAL is reset to 0.0.
10. Totalization resumes after RESET goes FALSE.

---