Precision Digital PD6830 - Manual (Page 16)

PD6830 Pulse Input Rate/Totalizer Instruction Manual
16
ISO+ ISO- S+ S- COM
+3.0 V
100 kOhm
Internal Pullup
NPN
SENSOR
V mV
INPUT LEVEL
PNP NPN
INPUT TYPE
Figure 5. NPN Open Collector Input
ISO+ ISO- S+ S- COM
100 kOhm
Internal Pull-Down
PNP
SENSOR
Power
Supply
V mV
INPUT LEVEL
PNP NPN
INPUT TYPE
Figure 6. PNP Sensor with External Power
ISO+ ISO- S+ S- COM
+3.0 V
100 kOhm
Internal Pullup
SWITCH
CONTACT
V mV
INPUT LEVEL
PNP NPN
INPUT TYPE
Figure 7. Switch Contact Input