Visualization Documentation – SHIFT_TOTALIZER Block
Overview
The SHIFT_TOTALIZER block is an advanced version of the standard totalizer, designed for capturing flow totals across multiple operator shifts and daily summary values. It helps track consumption or production data per shift, per day, and also provides historical totals for yesterday.
Block Icon
- The blue color area displays the Tag Number for operator identification.
- Beside the TOTAL label, the real-time accumulated value is shown.
- The icon provides a compact view of tag and totalizer value for runtime monitoring.
Opening the Faceplate
Clicking the SHIFT_TOTALIZER block icon opens the detailed faceplate interface, allowing for:
- Real-time value monitoring
- Shift-wise tracking
- Reset functionality
- Manual configuration of correction and time factors
SHIFT_TOTALIZER Faceplate Layout
| Field | Description |
|---|---|
| Tag Number | Displayed in blue area of the icon |
| Flow | Current process value (e.g., flow input) |
| C_Fac | Correction factor for scaling the input (multiplies the Flow value) |
| ByTime | Time base for totalization: SEC, MIN, or HOUR |
| TOTAL | Current totalizer value |
| A_Shift | Totalized value accumulated during Shift A |
| B_Shift | Totalized value accumulated during Shift B |
| C_Shift | Totalized value accumulated during Shift C |
| T_Total | Today's total accumulated value (sum of all active shifts) |
| Y_A_Shift | Yesterday’s Shift A total |
| Y_B_Shift | Yesterday’s Shift B total |
| Y_C_Shift | Yesterday’s Shift C total |
| Y_Total | Yesterday’s total (sum of A, B, C shifts) |
| RESET Button | Clears all current total values (PV, Total, Shifts, Daily). Use with caution. |
Faceplate Functionality
| Feature | User Role | Behavior |
|---|---|---|
| View Flow and Totals | Operator | Observe live values for process and all shift totals |
| Edit C_Fac / ByTime | Engineer | Tune correction factor and totalization time base |
| RESET All Totals | Supervisor / Engineer | Resets TOTAL, Shift Totals, and Today/Yesterday totals |
⚠️ The RESET button will erase all accumulated totals. Only use at scheduled maintenance or during commissioning.
Shift Logic Configuration
- Shift Triggers are typically configured in logic to switch shift values at configured hours.
- Ensure PLC logic updates shift boundaries based on real-world timing (e.g., Shift A: 6am–2pm, B: 2pm–10pm, etc.)
Best Practices
- Always verify C_Fac and ByTime values for correct engineering units.
- Use RESET only during operational resets or daily batch starts.
- Cross-check with yesterday’s totals for shift pattern validations.
Visual Indicators Summary
| Indicator | Behavior |
|---|---|
| TOTAL field | Live update of cumulative totalizer value |
| A/B/C_Shift fields | Show total accumulated value for respective shift |
| T_Total / Y_Total | Full-day tracking of today/yesterday values |
Security & Access
| Role | Access Level |
|---|---|
| Operator | View faceplate, live monitoring |
| Engineer | Modify scaling and time factors |
| Supervisor | Reset function, full data access |
Summary
The SHIFT_TOTALIZER block is ideal for shift-wise production or consumption tracking with built-in separation of daily totals.
It enhances operational analysis and reporting by giving visibility into individual shift totals, full-day totals, and yesterday's comparison.
Perfect for manufacturing, utility plants, or continuous processes where per-shift accountability is required.