CET PMC-53A - Page 10

CET Electric Technology
10
Diagnostics
 Frequency Out-of-Range, Loss of Voltage / Current
 kW Direction per phase and Total, Possible Incorrect CT Polarity
 Incorrect U & I Phase Sequence
Communications
 Optically isolated RS485 port at max. 38,400 bps
 Selectable Modbus RTU, BACnet MS/TP*, Metasys N2* and DNP 3.0~
 Optional 2nd RS485 port with Modbus RTU support only
*Available in Firmware V1.00.03 or later
~Available in Firmware V1.00.06 or later
Optional Inputs and Outputs
 Digital Inputs
o Up to 6 channels, volts free dry contact, 24VDC internally wetted
o 1000Hz sampling for status monitoring with programmable debounce
o Pulse counting with programmable weight for each channel for collecting WAGES (Water,
Air, Gas, Electricity, Steam) information
o Tariff switching based on DI status
 Digital Outputs
o Up to 4 Form A mechanical relays for alarming and general purpose control
 Pulse Outputs
o Up to 4 Form A Soild State Relays for kWh and kvarh pulsing with Max. Load Voltage @
50VDC and Max. Forward Current @ 50mA
Optional Expansion Modules
 Expansion Module A Options
o I4 Input
o 2
nd
RS485 port with optical isolation, supporting Modbus RTU
 Expansion Module B Options
o 2xDigital Inputs and 2xRelay Outputs
o 2xDigital Inputs and 2xSold State Pulse Outputs
o 2xRTD Inputs (PT100 sensor not included)
o 1xAI and 1xAO (0/4-20mA)
System Integration
 Supported by CET’s PecStar® iEMS and iEEM
 Modbus RTU for easy integration into 3
rd
-party Energy Management, Automation or SCADA
systems
 BACnet MSTP and Metasys N2 for Building Automation
 DNP 3.0 for Utility Substation Automation