American Magnetics 185 & 186 Liquid Level Instruments (CE-Marked) - Manual (Page 6)

vi Rev. 3
Table of Contents
5 Remote Interface Reference ..................................................35
5.1 Serial Communication/Data Logger Option ...........................35
5.1.1 Serial port connector and cabling................................35
5.1.2 Command/return termination characters...................35
5.1.3 Serial Communication DIP Switch Settings...............36
5.1.4 Serial Command Set Reference ...................................38
5.2 IEEE-488 Communication Option ..........................................42
5.2.1 Command/return termination characters...................42
5.2.2 Communicating with the Model 185/186 ....................42
5.2.3 IEEE-488 Communication DIP Switch Settings ........44
5.2.4 IEEE-488 Command Set Reference ............................46
5.2.5 Serial poll status byte ..................................................49
5.3 Error Codes...............................................................................50
6 Virtual Instrument Operation .................................................51
6.1 RS-232 Virtual Instrument .....................................................51
6.1.1 Launching and initializing the RS-232 VI ..................52
6.1.2 Interacting with the running VI..................................54
6.2 IEEE-488 Virtual Instrument .................................................55
6.2.1 Launching and initializing the GPIB VI.....................56
6.2.2 Interacting with the running VI..................................57
6.2.3 Running multiple GPIB devices ..................................58
7 Service Guide ..........................................................................61
7.1 Troubleshooting Procedures ....................................................61
7.1.1 No level reading............................................................62
7.1.2 Erratic or erroneous level reading...............................63
7.1.3 Controller output does not energize ............................64
7.1.4 Unit not responding to communications .....................64
7.2 Custom Instrument Configurations........................................65
7.2.1 Modifying the line voltage requirements ....................65
7.3 Additional Technical Support..................................................66
7.4 Return Authorization...............................................................66
Appendix..................................................................................67
A.1 4-20 mA current loop option ....................................................67
A.2 Auxiliary connector J2 pinout .................................................68
A.3 RS-232 cable DB-25 to DB-9 translation ................................69
A.4 RS-422 Cable Wiring................................................................69
A.5 Dielectric constants for common liquids .................................70
Index.........................................................................................71