Detail Siemens Power Meter Simeas 7KG7755-0DA00-0AA1
Function overview Device type Top-hat rail mounted device Plastic case 96 mm × 96 mm × 100 mm/ 3.78 in. x 3.78 in. x 3.94 in. ( W × H × D) Degree of protection IP20. Input and output circuits 4 inputs for alternating voltage measurements 3 inputs for alternating current measurements up to 10 A continuous 4 optional DC analog outputs freely configurable: - Direct currents: 0 mA to 20 mA, 4 mA to 20 mA and -20 mA to 20 mA - Direct voltages: 0 V to 10 V and -10 V to 10 V Individually programmable binary outputs. Signalization LEDs Automatically monitor the functions of its hardware, software, and firmware components. Communication Ethernet: IEC 61850 or MODBUS TCP communication protocol Optional serial RS485 interface that enables the device to communicate via the MODBUS RTU or the IEC 60870-5-103 communication protocol- Measurands The following measurands can be recorded or calculated from the measured quantities: TRMS ( True RMS) for alternating voltage and current Active, reactive and apparent power Active, reactive and apparent energy Power frequency Phase angle Power factor and active power factor Voltage and current unbalance - Mean value of the 3 phase voltages: Vavg - Mean value of the 3 phase currents: Iavg.. Time synchronization For a common time basis when communicating with peripheral devices and time stamping of the process data. External time synchronization via Ethernet NTP External time synchronization via field bus using the MODBUS RTU or the IEC 60870-5-103 communication protocol Internal time synchronization via RTC ( if external time synchronization is not available) . Response time for analog and binary outputs The faster response time of the analog and binary output is a very important feature of SICAM T that enables a reliable reaction of the controlling applications. The response time of the device is 120 ms at 50 Hz and 100 ms at 60 Hz.
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