Quatech INTERBUS S manual + +, Frequency Counter Module, 750-404/000-003

Frequency Counter Module, 750-404/000-003

Status Gate		Status CLOCK
Q1		Q2
O1		O2
	G	Clk
Clock
Gate	+ +
24V
	-	-
0V
power jumper	O1	O2
contacts	Q1	Q2
O1		O2
Q1		Q2

750-404

000-003

Technical Description

The counter module 750-404/000-003 measures the period of the 24 V DC input signal at the CLOCK terminal and converts it into a corresponding frequency value. The measurement is enabled if the GATE terminal is an open circuit input or 0V. To disable processing, the GATE input is to be set to 24 V DC.

The terminals O1 and O2 work as binary outputs. Each output can be activated via specific bits in the CONTROL byte.

The high states of the input and output channels are each indicated by a LED.

To recognize low frequency or near zero frequency signals, the maximum time between two data updates is parameterizable.

Counter￿￿￿￿￿￿￿￿Module 750-404 8

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