... *GPRS, SMS and CLIP support *Autonomous login into GSM/GPRS network *Data logging *Optional Ethernet Interface X-Messenger SMS Relay-- ... on/ off-delays, pulse relay ,counters ,Watchdog function ,PI controller etc..Ø Logic functions-AND, OR, NOT, XOR……Ø Standard configure ... to act as slave or master in certain Modbus communication networkØ 1 RS232, 1USB&1RS485 ports availableØ Optional Ethernet ...