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Description
Adapter board 620 is a low cost solution to interfacing a large number of discrete
logic signals to PCI computers. Its seventy- two I/O lines are software programmable as
inputs or outputs in banks of eight lines.
Edge Detection
When enabled sixty-four of the lines can detect logic state changes. A flag is set in
a 64-bit register for each input that changes state. The register may be polled to
determine which inputs have changed state. The 620 may optionally generate an interrupt
whenever state changes occur. |
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External Relays
The 620 adapter may be connected to as many as three solid-state relay boards. Each
720RB relay board accepts twenty-four industry standard relays.
Supplied Software (SDK)
The software development kit, SDK, includes the source code of a sample Visual Basic
program and a C-language program that allows setting output lines and reading back their
status. A 32-bit Windows 95/NT DLL is also supplied. |
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