Issue:
When polling double registers in Data Center Expert, both registers must be polled together.
Product Line:
EcoStruxure IT Data Center Expert
StruxureWare Data Center Expert
StruXureware Central
InfraStruXure Central
Environment:
Modbus communications
Cause:
Modbus registers are limited to 16 bits, limiting the length of values they can store and return to a BMS. 16 bit registers cannot express a value greater than 65535. Because some values returned by a device's sensor may be exceed this limit, you may need to use a double register to express longer values. A double register uses two 16 bit registers together to express a 32 bit value. If you choose to configure 31001 as a double register, it will include 31001 and 31002.
Resolution:
When polling these registers, poll both 31001 and 31002 (or whatever register pair you have set up this way) as a single value during the same poll. Failure to do so will return invalid results.
Released for: Schneider Electric Philippines
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales inquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Center
Find support resources for all your needs, in one place.