Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
How to read kWh value from PM200 and PM700 Modbus registers?
PM200 and PM700 series
Reading energy from PM200 and PM700 series meters.
Customer is not reading correct energy values via modbus register.
The complete modbus register list for PM200 and PM700 can be found from Knowledgebase article FA212154.
An example of how to interpret these readings is the following:
- kWh reading is located in registers 4000 & 4001 with hex format (range is from 0 to FFFFFFFF).
Range of each register is from 0 to FFFF only.
So to read the complete value, you have to read the value from those 2 specific registers as well as the register for energy's scale factor.
An example calculation is as follows:
READING Energy Registers:
register 4000 = 0012;
register 4001 = ABCD;
Scale factor - register 4108 (power of 10) = 2
1. Combined values from 2 registers in hex format as 0012ABCD
2. Then convert 0012ABCD into Decimal which is 1,223,629.
3. Next, multiply the combined value with scale factor which is 1,223,629 * (10^2) = 122,362,900.
4. As a result, 122,362,900 is the actual value energy value.