Measurement-computing PointScan 300 Series rev.1.0 Uživatelský manuál stáhnout pdf (Strana 21)

PointScan/300 User’s Manual

8-23-01

Discrete Input Modules 4-5

PointScan/327

High-Speed Counter Module

This high-speed counter module has eight isolated circuits that accept pulse inputs from a variety of

sources, including quadrature and incremental encoders. Count values are reported in 16 bit analog input

registers, with 32 bit results available by cascading two adjacent I/O channels to report total counts. The

states of the counter inputs are also reported as discrete inputs. Pulse rates up to 50 kHz are supported. The

counters may be reset by toggling discrete output bits. Counter modes are selected using the Remote IO

Toolkit program. Refer to the Remote IO Toolkit online help system for more information.

Input Wiring

Screw terminal assignments, compatible only with the universal wiring base, are shown below. For best

noise immunity, connect input signals using twisted wire pairs. To maintain the best differential noise

rejection, do not connect (-) screw terminals together at the I/O base.

* Populate the appropriate load resistor, unless your sensor

does not require one.

Typical Wiring Models

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 41 42

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Measurement-computing PointScan 300 Series rev.1.0 Uživatelský manuál Strana 21