Dual Power/Electric Pulse Meter Interfac -

Description

The Model 2200A is a pulse count input node that is housed in a compact DIN rail enclosure. It allows integration of up to 2 digital pulse inputs into the LonWorks distributed digital network. The firmware executes on a standard Model 2200A and is available at no charge. It is downloaded to a base Model 2200A via a LonWorks Network Installation Tool such as LonMaker or pre-loaded if ordered as Model 2200APM Pulse meters with a dry contact, NPN transistor, or a voltage output can be connected directly to the Model 2200A. An input frequency of up to 3600 Hz can be captured. The internal pulse accumulator has a capacity of 2,147,483,648. In case power is lost, the accumulated pulse count is saved internally once every 30 seconds. The amount of energy per pulse, in watt-hours, for each meter is entered as a configuration parameter. It is used to calculate the total energy in watt-hours. The amount of energy measured is averaged over a user configurable period of 1 to 120 minutes. The average energy is used to calculate the demand power. The calculated power is made available via Standard Network Variable Types in watts and as a percentage value. The percentage output allows a simple interface to other LonWorks devices.