Siemens 6GK7142-7BX00-0AX0 LOGO! CMR2020 COMMUNICATION MODULE FOR CONNECT. LOGO! 0BA8 TO GSM/GPRS NET, 1 RJ45 PORT FOR IND. ETHERNET-CONECTION TO LOGO! 0BA8, 2XDI,2XDO, READ/WRITE-ACCESS TO LOGO! -VARIABLES, SMS SEND/RECEIVE, POSITION RECOGN. GPS, TIME SYN. /FORWAR- DING WITH REAL TIME CLOCK,...