Keithley 2701

8 Triggering
Figure 8-1 Front panel trigger model (without scanning) ....................... 8-2
Figure 8-2 Device action ......................................................................... 8-5
Figure 8-3 TRIG LINK pinout ................................................................ 8-7
Figure 8-4 Trigger link input pulse specifications (EXT TRIG) ............. 8-8
Figure 8-5 Trigger link output pulse specifications (VMC) .................... 8-9
Figure 8-6 DUT test system .................................................................. 8-10
Figure 8-7 Trigger link connections ...................................................... 8-11
Figure 8-8 Operation model for triggering example ............................. 8-12
Figure 8-9 DIN to BNC trigger cable .................................................... 8-13
Figure 8-10 Trigger model (remote operation) ........................................ 8-15
9 Limits and Digital I/O
Figure 9-1 Default limits ......................................................................... 9-2
Figure 9-2 Digital I/O port ...................................................................... 9-5
Figure 9-3 Digital I/O port simplified schematic ..................................... 9-6
Figure 9-4 Controlling externally powered relays ................................... 9-9
Figure 9-5 NAND gate control .............................................................. 9-10
Figure 9-6 Setup to test 100 Ω resistors ................................................. 9-15
Figure 9-7 Limits to sort 100 Ω resistors (1%, 5%, and >5%) ............... 9-16
10 Remote Operations
Figure 10-1 Direct 2701 connection to PC .............................................. 10-7
Figure 10-2 Small LAN system using a hub ........................................... 10-8
Figure 10-3 Isolated LAN system using two NICs
(Network Interface Cards) ............................................... 10-9
Figure 10-4 Enterprise-wide or internet network system ........................ 10-9
Figure 10-5 RJ-45 Ethernet cable (male/male) ...................................... 10-10
Figure 10-6 Model 2701 Ethernet connector ......................................... 10-11
Figure 10-7 Flowchart to VIEW Ethernet settings ................................ 10-13
Figure 10-8 Flowchart to SET Ethernet ................................................ 10-14
Figure 10-9 2701 internal web page ...................................................... 10-18
Figure 10-10 Web page control panel ...................................................... 10-19
Figure 10-11 RS-232 interface connector ............................................... 10-32
11 Status Structure
Figure 11-1 Model 2701 status register structure .................................... 11-3
Figure 11-2 16-bit status register ............................................................. 11-5
Figure 11-3 Status byte and service request (SRQ) ................................. 11-8
Figure 11-4 Standard event status .......................................................... 11-11
Figure 11-5 Operation event status ........................................................ 11-13
Figure 11-6 Measurement event status .................................................. 11-15
Figure 11-7 Questionable event status ................................................... 11-17