Hioki RM3544 - 8.1 External Input;Output Connector and Signals

8.1 External Input/Output Connector and Signals
90
Before switching, see "Before Switching between Current Sink (NPN) and Current Source
(PNP)" (p. 11).
The NPN/PNP switch allows you to change the type of programmable controller that is sup-
ported.
The instrument ships with the switch set to the NPN position.
See: "8.3 Internal Circuitry"(p.104)
8.1 External Input/Output Connector
and Signals
Switching between Current Sink (NPN) and Current Source (PNP)
NPN/PNP switch setting
NPN PNP
RM3544 input circuit Supports sink output. Supports source output.
RM3544 output circuit Non-polar Non-polar
ISO_5V output +5 V output -5 V output
Left: Current sink (NPN)
Right: Current source (PNP)