11.4 Outputting a Pulse Signal
173
Chapter 11 Using Pulse Input and Output
11
The pulse output terminal is isolated from the instrument’s internal
circuitry. When using pulse output, connect the “PULSE OUT Hi”
terminal to an external power supply using a pull-up resistor as
shown in the following example external circuit:
Model PW3360
internal circuitry
Photo coupler
Power source
(30V or less)
Pull-up resistor
(Recommended: 10 k)
GND
Pulse out High
Pulse out Low
Example external circuit
• When using the 1P2W x 2 circuit or 1P2W x 3 circuit wiring set-
ting, the active energy for the first circuit drives pulse
output.
Pulse output cannot be generated for the active energy of the
second or third circuit.
• The wire connected to the pulse output terminal should be no
longer
than 100 meters. Excessively long wires are affected by
stray capacitance and may prevent the instrument from operat-
ing properly.
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