509-DOA A-B communication module
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IN STOCK509-DOA A-B communication module
A count channel’s operational mode configuration selection determines how the A and B inputs cause a counter channel to increment or decrement. The six available mode selections are the following: • Pulse/External Direction Input • Pulse/Internal Direction Input • Up and Down Pulse Input • X1 Quadrature Encoder Input • X2 Quadrature Encoder Input • X4 Quadrature Encoder Input
The operational mode selection is limited by the number of counters selected. • With two counters selected, Counters 0 and 1 can be assigned any operational mode. • With three counters selected, Counter 0 can be assigned any mode, but Counters 1 and 2 can only be configured as pulse/internal direction. • With four counters selected, all counters must be configured for the pulse/internal direction mode.
Two Output Control bits let you modify the operation of the B input from your control program or during configuration. The Direction Inhibit bit, when set (1), disables the operation of the B input. The Direction Invert bit, when set (1), reverses the operation of the B input, but only if the Direction Inhibit bit is not set. If the Direction Inhibit bit is set, then the Direction Invert bit controls counter direction: • When the Direction Inhibit bit is set (1) and Direction Invert = 0, count direction is up (forward). • When the Direction Inhibit bit is set (1) and Direction Invert = 1, count direction is down (reversed).
The structure and details of the product：
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