Connection with External Devices
CNT24-4D(PCI)
25
TTL-level Input Circuit and an Example Connection
Board
Diode
+5V
LS541
+5V
10k
Ω
DC +5V
External power
supply source
Target equipment
Input pin
Ground
Plus
common
Minus
common
Output
pin
Internal
circuit
Diode
Figure 4.6. TTL-level input circuit and an example
connection
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.
Summary of Contents for CNT24-4D(PCI)
Page 1: ...CNT24 4D PCI 24Bit Differencial Up Down Counter Board for PCI User s Guide ...
Page 29: ...Board Setup CNT24 4D PCI 20 ...
Page 63: ...I O Port Bit Assignment CNT24 4D PCI 54 ...
Page 66: ...Board Specifications CNT24 4D PCI 57 External Dimensions 176 4 107 0 mm ...
Page 67: ...Board Specifications CNT24 4D PCI 58 ...