This driver monitors an accumulating field value, for example an energy (kWh) or volume (L) register that continuously counts up. The driver captures the field value at a given interval (hourly, daily etc..) and computes the difference between the start and end of the interval. Current value and the four previous are provided.
Name - The name is up to the user. Our suggestion is to choose a naming convention that makes the viewing the device list intuitive. Such as referring to the sensor and/or application. Keep the name short as it will be combined with the register name to create the default “Field” name (if added to “Fields”)
Active Check box - Check this box and “Save changes” to run the driver. The driver program can be suspended by unchecking the box and clicking on “Save changes”.
User Notes - This space can be used to store information specific to the device and your application, such as: the asset being monitored, the purpose of monitoring, etc.
eze System Notes - In this space we provide a description of the driver's function.
Accumulator Field - Use the drop-down menu to select the Field to be monitored.
Interval - Use the drop-down menu to select the differential's interval. Options are; Hourly, Daily, Weekly, Monthly or Yearly.
Driver info - Typically this is the name from the program file
Driver updated/version - Date loaded or updated and the version of the driver
Battery & Signal - Signal indicates the progress through the script. If driver fails to operate, signal number indicates progress
Driver status - Color and text of status bubbles give a quick visual reference of Communication, Operation, and Application
Communication - Com count indicates number of successful and unsuccessful data packets received
| Reg # | Reg Name | Description |
| 1 | Accumulator value | Current value in selected Field |
| 2 | Current interval partial diff | Differential between value at beginning of interval and current value |
| 3 | Previous interval diff | Most recent interval differential captured. Daily example: Yesterday's differential |
| 4 | 2nd interval diff | Second most recent interval differential captured |
| 5 | 3rd interval diff | Third most recent interval differential captured |
| 6 | 4th interval diff | Fourth most recent interval differential captured |
| 7 | Value at start of current interval | Speed of travel is given as meters per second |
| 8 | Interval identifier | Current interval step, out of a complete cycle (expressed as a number). See table below |
| Interval option | Description | Cycle | Example of number reference |
| Hourly | Begins at top of hour | 0 to 23 | 0 = Midnight to 1 am |
| Daily | Begins at Midnight | 1 to 31 | 1 = 1st day of Month |
| Weekly (Mon-Sun) | Begins Monday | 1 to 52 | 1 = Monday |
| Weekly (Sun-Sat) | Begins Sunday | 1 to 52 | 1 = Sunday |
| Monthly | Begins first of the Month | 1 to 12 | 1 = January |
| Yearly | Begins January 1st | N/A |