Basic Operation
5.12 Analogue Function (Ext-Program) (Optional)
The external analog quantity function means that the user can input an analog
signal in the range of –10V to 10V through the analog quantity input interface
for remote setting of the instrument’s input setting value. The external analog
quantity function is not the standard-equipped function for the instrument. It is
only available when the user selects the IT-E177 interface card.
The rear panel of this series of instrument provides an optional interface card in-
tegrating the RS-232 and analog quantity function. The interface card provides
the following capability:
• Remotely control voltage and current values.
• Remotely control voltage and current upper limit values.
• Remote monitoring of output voltage/current measurement.
• RS-232 communication interface, please refer to 2.5.5 RS–232 Interface
(Optional) for detailed description about the interface.
Analog Card Interface Introduction
The analog function interface is located on the optional IT-E177. The pins de-
scription is as below.
Pins Name Type Description
1, 2, 3 TXD,
RXD,
DGND
Commu-
nication
terminal
RS232 interface connection terminal.
4 GND Ground Ground for analog inputs and outputs.
Copyright © Itech Electronic Co., Ltd.
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