Hioki BT4560 - Page 85

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8
External Control (EXT.I/O)
Using the EXT.I/O terminals on the rear of the instrument, the instrument can be controlled by
external devices such as PLC.
The instrument can also be controlled by outputting the measurement ending signal and the judgment result
signal, and by inputting the measurement starting signal by using the EXT.I/O connector on the rear. All of the
signals are isolated from the measurement circuit and the ground. (The common terminals for input and output
are shared.) The input circuit can be switched so as to correspond to the current sink output (NPN) or the
current source output (PNP).
To use the instrument properly, conrm input/output ratings and the internal circuit conguration, and
understand the safety precautions before connecting to a control system.
Signal input/output
Check the specications of the controller’s input/output.
Set the NPN/PNP switches of the instrument (p. 80).
Connect between the EXT.I/O connector of the instrument and the controller (p. 80).
Congure the instrument settings.
8 External control (EXT.I/O)
8
External Control (EXT.I/O)