Frequently Asked Questions - FAQs
119
Building Technologies 125-202
06/06/2017
See
Prepping for Field Installation
.
How can I fix BACnet network timing errors/slowness?
The maximum number of the MSTP master should be set to the highest MAC address
present in the network. Max Master is a setting on the Communications tab of the
ViewPoint™ software.
What is the purpose of setting a scalar value?
Each Modbus register is only 16 bits wide and is in integer format without any fixed
number of decimal points. Simply putting a value directly into one of these registers
would limit the smallest number to 1, and only allow for a maximum value of 65535. To
handle larger numbers, or numbers with better resolution, we use a scalar value to
apply a factor in multiples of 10 to the 16 bit data register value.
How do I update the firmware in BACnet mode?
If you are not using a USB connection, the Power Meter must be in Modbus mode in
order to use ViewPoint to update the firmware (either through the software switch or
the rotary switches). See
Appendix E
.
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