Hioki SW1001, Instruction Manual, Page: 53 / 164

49
7
External Control (EXT. I/O)
Thoroughly read “Before starting the external control” (p. 6) beforehand.
Connecting the instrument and the EXT. I/O terminal allows you to perform measurement in
synchronization with channel switching when using the scan function. Also scan control can be
performed from the PLC and other devices.
All signals are isolated from the switching circuit, communication circuit, and ground (earth) (the
common terminal for I/O is shared).
The input circuit can be switched so that it can support sinking current output ( NPN) or sourcing
current output ( PNP).
Check the input/output rating and internal circuit configuration, and then understand the safety
precautions. After that, connect the instrument or control system and use it in a correct manner.
Rear
Signal output or input
7.1 External Control Flow
Check the I/O specifications of the instrument and external device to be connected.
Setting NPN/PNP in the device (p. 50).
Connecting the device and the external device (p. 51).
7 External Control (EXT. I/O)
7
External Control (EXT
. I/O)