Communication unit MEg201.2 / MEg201.4 Měřící Energetické Aparáty, a.s. 664 31 Česká 390 Czech Republic PURPOSE The basic version of the communication units MEg201.2 / MEg201.4 with RTU functions provides remote transmission of states of binary inputs, commands and measured data from connected instruments via Ethernet network. The units are fitted either with two (MEg201.2) or four (MEg201.4) Ethernet interfaces. The instruments installed in the station technology can be connected through two RS485 serial interfaces. The units MEg201.2 / MEg201.4 implement the standardized communication protocol according to EN 60870-5-104 and allow integration of connected devices into the SCADA system, either directly or through concentrators. The units MEg201.2 / MEg201.4 include a processor that optimizes and controls data transmission, communicates with connected devices through technological network, allows pre-processing of data read from measuring devices, supervises connected devices and automatically transmits data to a host system in case of an event. The basic functional setting of the units is configured by the manufacturer. The setting can be changed using the program M202Param, the Ethernet interfaces are configured via internet. TechnicAL parametErS Power supply: +12 V ± 10 % / max. 220 mA – MEg201.2 +12 V ± 10 % / max. 360 mA – MEg201.4 Operating temperature: -20 °C to +60 °C Dimensions of the unit: 75 × 55 × 110 mm, length × width × height Weight: 0.2 kg Unit construction: DIN rail installation, type TC 35. Communication of MEg201.2 with devices: Interface RS485: 2, max. baud rate 115.2 kBd Number of digital inputs: 5, (voltage from MEg201.2) Number of outputs realized by a switching relay contact: 2, (1 A / 250 VAC, 220 VDC / 62.5 VAAC, 30 WDC) Manufacturer MEgA – Měřící Energetické Aparáty, a.s., 664 31 Česká 390, Czech Republic tel. +420 545 214 988, e-mail: mega@e-mega.cz, www.e-mega.cz Edition: 03/2013