Opal-MM

Digital I/O

Max Input Ports: 8 lines (1 byte or 8 bits), optoisolated, inverting logic (high input = 0, low input = 1)
Max Output Ports: 8 lines (1 byte or 8 bits), type SPDT (form C) relays

A 1 in each bit turns that relay on, and a 0 turns it off. All relays power up in the off (0) position.

The output ports do not have readback capability.

The inputs and outputs are fixed direction and do not need configuration prior to use.

Interrupts

Not supported on this board.

Opal-MM Universal Driver Functions

• dscDIOClearBit()
• dscDIOInputBit()
• dscDIOInputByte()
• dscDIOOutputBit()
• dscDIOOutputByte()
• dscDIOSetBit()