Omron K7DD User Manual page 61

Trigger Input Terminals
The trigger input terminals are the number 7 and
8 terminals.
Connect the collector to the number 7 terminal
and the emitter to the number 8 terminal.
Logging start/stop is executed by external trigger
signals.
The specifications of the trigger input terminals
are as follows:
Item
Input type
Residual voltage
at short circuit
Open leakage
current
ON current
at short circuit
Make sure that the specifications of the residual
voltage at short circuit and open leakage current
are satisfied.
Power Line Data Generator User's Manual (N233)
Specifications
NPN open-collector
1.5 V max.
0.1 mA max.
Approx. 7 mA
3 Installation and Wiring
K7DD
Internal 5 V
Approx.
External
7 m
680 Ω Typ.
contact
7
8
Internal GND
‒
+
3
3 - 9