SATEC EM720 Operation Manual - Manual (Page 12)

Chapter 1 Introduction
12 EM720 Power Quality and Revenue Meter
• Menu-driven setups
Digital I/O
• Four embedded digital inputs with 1 ms scan time
• Replaceable 2DI/2DO expansion I/O modules with 1/2
cycle scan/update time
Memory
• 8 or 16 Mbyte flash memory for long-term billing,
event, waveform and data recording
Communications
• Front Infrared IEC 62056-21 serial communication port
(IEC 62056-21, Modbus RTU/ASCII and DNP3
protocols)
• Plug-in serial RS232/RS485 communication port
(Modbus RTU/ASCII and DNP3 protocols)
• Plug-in full speed USB 1.1 port (Modbus RTU protocol)
• Plug-in Ethernet port (Modbus/TCP and DNP3/TCP
protocols, IEC 61850 – future releases), up to 5
simultaneous connections
• Plug-in wireless GSM/GPRS modem (Modbus/TCP and
DNP3/TCP protocols)
Expansion I/O and Communication slots
• 3 expansion slots for plug-in I/O and communication
modules
Backup Power Supplies
• Rechargeable auxiliary battery (more than 3 hours
operation time with a NiMH battery, up to 7 hours
operation with a Li-Ion battery)
• Auxiliary 24VDC backup power supply module
• Auxiliary 85-265VAC/90-290VDC backup power supply
module
Upgradeable Firmware
• New features can be easily added to your meter by
simply replacing firmware through any communication
port.
Software Support
• PAS – free meter configuration and data acquisition
tool
• eXpertPower TM – SATEC proprietary Internet services