Hioki IM3536 - 9 External Control

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9
External Control
This chapter describes how to connect the EXT I/O connector on the rear of the instrument to an
external device and how to control the instrument using the following methods:
• Outputting signals from the instrument to the external device (measurement complete signal,
judgment results signal, etc.)
• Inputting signals from the external device to the instrument (measurement start/stop trigger sig-
nal, panel load signal, etc.)
All signals are isolated by photocouplers (inputs and outputs share a common signal ground (ISO_
COM signal ground).)
(1) Connecting the instrument’s EXT I/O connector to the control system
(See p. 162 to p. 179)
Conrm input and output ratings, understand the safety precautions for connecting a control system,
and use accordingly.
Control system
(Signal output destination or signal input source)
(2) Conguring the instrument (See p. 180)
To input a signal from the external device to the instrument to start and stop measure-
ment (external trigger)
p. 62
To output contact errors during 2-terminal measurement (Hi Z reject function) p. 84
• To set the delay time from comparator/BIN judgment result output to measurement
complete signal output (EOM
―――
[LO])
• To reset the comparator/BIN judgment results when measurement starts
p. 181
To enable trigger input during measurement and set the trigger input effective edge p. 182
To set the EOM signal’s LO and HI times so that they are sufciently long p. 183
9 External Control
9
External Control