IndexSCXI-1120 User Manual Index-5 © National Instruments CorporationNNI-DAQ software, 1-2 to 1-3nulling the offset, 3-11OONCE bit, 4-7operating environment specifications, A-3operation of SCXI-1120. See theory ofoperation.OUTREF signalanalog output signal connections, 2-26jumper connection, 2-7 to 2-8rear signal connector, 2-25, B-2Pparallel scanning, single-module, 3-14, 5-8PC-LPM-16 cable assembly. SeeSCXI-1342.physical specifications, A-3pin assignmentsfront connector, 2-12, D-1rear signal connector, 2-24, B-1SCXI-1343 rear screw terminaladapter, E-12SCXIbus connector, 3-3, C-2pin equivalencesSCXI-1120 and MIO-16 board pinoutequivalences, E-2SCXI-1341, E-4SCXI-1342, E-5 to E-6SCXI-1344, E-4SCXIbus to rear signal connector, 3-5SCXIbus to rear signal connector anddata acquisition boards, 2-27, 5-2programming. See also registers.notation for bit patterns, 5-1register writes, 5-1 to 5-3initialization, 5-3rear signal connector pinequivalences, 5-2register selection and writeprocedure, 5-2 to 5-3scanning examples, 5-12 to 5-15scanning measurements, 5-5 to 5-12acquisition enable, triggering, andservicing, 5-12data acquisition and boardprogramming, 5-6 to 5-8Counter 1 and SCANDIV, 5-8module programming, 5-8 to 5-10channel scanning from othermodules, 5-9channel scanning fromSCXI-1120 via anothermodule, 5-9multiple-chassis scanning, 5-10multiple-module multiplexedscanning, 5-9 to 5-10single-module multiplexedscanning (direct), 5-9single-module multiplexedscanning (indirect), 5-9single-module parallelscanning, 5-8Slot 0 hardscan circuitry,5-10 to 5-11single-channel measurements, 5-3 to 5-5direct measurements, 5-3 to 5-4indirect measurements, 5-4 to 5-5measurements from othermodules, 5-4measurements from SCXI-1120 viaanother module, 5-4 to 5-5multiplexed output, 5-4parallel output, 5-3Pseudodifferential Reference mode,2-7RRD bit, 4-7rear signal connectoranalog output signal connections, 2-26communication signals, 2-28 to 2-31digital I/O signal connections,2-26 to 2-27pin assignments, 2-24, B-1pin equivalences with SCXIbus and dataacquisition boards, 2-27, 5-2SCXIbus pin equivalences, 3-5signal descriptions, 2-25 to 2-26, B-2timing signal, 2-28
