Metrohm 781 pH/Ion Meter: Operation via RS-232 - Manual (Page 2)

Contents
780/781 pH/Ion Meter - Operation via RS232
Contents
1 General rules ........................................................ 1
1.1 Call up of objects .......................................................................................... 2
1.2 Triggers.......................................................................................................... 3
1.3 Status messages........................................................................................... 4
1.3.1 Detailed status conditions of the global $R.............................................4
1.3.2 Detailed status conditions of the global $G ............................................5
1.3.3 Detailed status conditions of the global $S.............................................5
1.4 Error messages ............................................................................................. 6
2 Remote control commands.................................. 9
3 RS232 interface properties................................ 21
3.1 Data transfer protocol................................................................................. 21
3.2 Handshake................................................................................................... 22
3.3 Pin assignment............................................................................................ 25
4 Troubleshooting ................................................. 27