5-10
Chapter
5
PARALLEL I/O INTERF
ACE
1.6
Typical output signal connection
■
NPN specifications
DC24V
DO
GND
c
CAUTION
• When an inductive load (solenoid, relay, etc.) is used, always connect a
diode in parallel as a surge killer.
• In the case of NPN specifi cations, do not short DO output to DC 24V since
this will damage the internal circuitry.
■
PNP specifications
DC24V
DO
GND
c
CAUTION
In the case of PNP specifi cations, do not short DO output to GND since this
will damage the internal circuitry.
1. Standard I/O interface overview
Summary of Contents for CEmarking RCX221
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