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Any recommendation for SMS Alarm via GSM Modem in a BACnet/IP Front End (which support COV R/W).

You can try using 5k Thermistor for carrier chiller unit. if not you have to measure the sensor resistance and download some of the temperature-resistance table and compare, roughly you will know...

is the CC64 connected to CVIEW, if yes you can check the controller maintenance display, some of the table will indicates the BEST program execution details. also you can use the BEST++ and upload...

do you have NST V or servicepack to monitor the bus traffic, see is there a write command remotely from other controller. the write command for BEST not necessary within the CC64 itself, it also can...

from what i know pigtail is to prevent back pressure or hammering effect to the pressure sensor diaphragm or capacitance sensing materials. check the system working pressure and check the pressure...

For the plant efficiency, the lower is better, as the equipment using less electrical kw to generate one cooling rt. In sg here, the rating any below 0.6kw/rt consider the best. this reading very...

Create one Analog SW pt unit %. Create an AO-Adaptive Control unit dC and use SAT as control sensor and OAT as reset sensor, then follow by two DO-Analog Comparison one for DO1 & the other for DO2...

Is your control logic wants to be when OAT and SAT drops then cut in DO? or OAT rise then cut out DO?