Last Modified: March 21, 2017
Table 1. Signal Descriptions
Signal
|
Reference
|
Description
|
PFI <0..31>/P0.<0..31>
|
D GND
|
Programmable Function Interface or Digital I/O Channels—Each of these terminals can be individually configured as a PFI terminal or a digital I/O terminal.
As an input, each PFI terminal can be used to supply an external source for DO timing signals or counter/timer edge or level
polarity selection. As a PFI output, you can route many different internal DI or DO timing signals to each PFI terminal. You can also route certain
counter/timer outputs to PFI <24..31> terminals.. As a port 0 digital I/O signal, you can individually configure each signal as an input or output.
|
PFI <32..39>
|
D GND
|
Programmable Function Interface—As an input, each PFI terminal can be used to route an external source for DO timing or counter/timer edge or level polarity
selection.
As a PFI output, you can route many different internal DI or DO timing signals to each PFI terminal.
You can also route certain counter/timer outputs to these terminals.
|
+5 V
|
D GND
|
+5 V Power Source—These pins provide +5 V power.
|
RESERVED
|
—
|
Reserved.
|
R GND
|
—
|
Restricted Ground—Tied to D GND. These terminals are routed to RESERVED when using the product with a SH68-68-D1 shielded cable or routed to D GND when using the product with a R6868 ribbon cable.
|
D GND
|
—
|
Digital Ground—These terminals supply the reference for the PFI and digital signals at the I/O connector and the +5 VDC supply.
|
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