Quote:
Originally Posted by Al Skierkiewicz
The NI 9472 is printed to look like a relay on the side of the module.
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No, the NI 9472 is printed to look like a simple SPST switch. So is the photosensor, and that's not a relay either.
Quote:
Originally Posted by Al Skierkiewicz
The current limitations of the module would allow two low load solenoids to be connected to each output under the rules. That is the load of two solenoids must not exceed 0.75 amps.
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That makes it sound like two solenoids is the limit. Do you just mean to say that the total load of all solenoids must be less than or equal to the 0.75 A capability of the output?
Quote:
Originally Posted by Al Skierkiewicz
This rule also applies.
<R42> Each power-regulating device (speed controller or relay module) shall control one and only one electrical load (motor, actuator or compressor).
Exception: Multiple low-load, pneumatic solenoid valves may be connected to a single relay module. This would allow one relay module to drive multiple pneumatic actions. No other electrical load can be connected to a relay module used in this manner.
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How does <R42> apply? The NI 9472 is neither a speed controller nor a relay module.