Ttl-Level Input Circuit And An Example Connection; Output Circuit And An Example Connection - Contec CNT24-4D(PCI) User Manual

TTL-level Input Circuit and an Example Connection

LS541
Internal
circuit
Figure 4.6. TTL-level input circuit and an example
Notes!
- The circuit for general-purpose input signals is also configured
similar to the above.
- Keep the cable shorter than 1.5m.
- In order to prevent noise from causing malfunctions, keep the
circuit as far away as possible from other wires or noise sources.

Output Circuit and an Example Connection

When the count value of each channel matches any specified value,
the board outputs a one-shot match signal (for one pulse). The
SW2 allows you to select either open-collector output or TTL-level
output for the signal output section. If you opt for open-collector
output, you need an external power supply source.
Board
+5V
+5V
Diode
10k
Diode
connection
CNT24-4D(PCI)
Connection with External Devices
Plus
common
Ω
Input pin
Output
Ground Minus
common
External power
supply source
DC +5V
Target equipment
pin
25