Typical connection diagram for AC/DC input
DISCRETE INPUT CIRCUIT
DISCRETE INPUT DEVICE
• Push buttons
• Proximity switches
• Selector switches
• Photoelectric eyes
• Limit switches
• Thumb wheel switches
• Motor starter contacts
• Circuit breakers
• Relay contacts
Standard Discrete Input Interface Rating
1. 24 V AC/DC
2. 48 V AC/DC
3. 120 V AC/DC
4. 220 V AC/DC
5. TTL Level
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