National Instruments PXI-7340, Руководство пользователя и технические характеристики

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4-3
NI 7340 User Manual and Specifications
Table 4-1 describes the signals on the motion I/O connector.
Table 4-1. Motion I/O Signal Connections
Signal Name Reference Direction Description
Axis <1..4> Dir (CCW) Digital Ground Output Motor direction or
counter-clockwise control
Axis <1..4> Step (CW) Digital Ground Output Motor step or clockwise
control
Axis <1..4> Encoder
Phase A Digital Ground Input Closed-loop only—phase A
encoder input
Axis <1..4> Encoder Phase B Digital Ground Input Closed-loop only—phase B
encoder input
Axis<1..4> Encoder Index Digital Ground Input Closed-loop only—index
encoder input
Axis <1..4> Home Switch Digital Ground Input Home switch
Axis <1..4> Forward Limit
Switch Digital Ground Input Forward/clockwise limit
switch
Axis <1..4> Reverse Limit
Switch Digital Ground Input Reverse/counter-clockwise
limit switch
Axis <1..4> Inhibit Digital Ground Output Drive inhibit
Trigger <1..4> Digital Ground Input High-speed position capture
trigger input <1..4>
Breakpoint <1..4> Digital Ground Output Breakpoint output <1..4>
Host +5 V Digital Ground Output +5 V—host co5 V
supply
Analog Input Ground — — Reference for analog inputs
Analog Input <1..4> Analog Input
Ground
Input 12-bit analog input
Analog Output <1..4> Analog Output
Ground
Output 16-bit analog output
Analog Output Ground — — Reference for analog outputs
Shutdown Digital Ground Input Controlled device shutdown
Analog Reference (output) Analog Input
Ground
Output +7.5 V—analog reference
level
Digital Ground — — Reference for digital I/O