Description
ControlLogix 1756-IG16: Precision 5V TTL Input Module
Monitor digital signals with Allen-Bradley’s specialized TTL module. Features 16 inverted-logic inputs (Low=True) and configurable filtering for critical automation systems.
⚡ Core Specifications
| Brand/Series | Allen-Bradley ControlLogix |
| Model | 1756-IG16 |
| Input Type | 5V DC TTL (Inverted Logic) |
| Voltage Range | 4.5-5.5V DC (±50mV ripple) |
| Timestamp Accuracy | ±200 µs |
⏱️ Timing & Logic
- Guaranteed States: ON: -0.2-0.8V | OFF: 2.0-5.5V
- Transition Delays: OFF→ON: 450µs max | ON→OFF: 700µs max
- Configurable Filters: 0/1/2/9/18 ms
- Logic Note: Requires NOT instruction for True-High
???? Electrical & Thermal
- Current Draw: 110mA @5.1V | 2mA @24V
- Power Dissipation: 1.4W max (4.8 BTU/hr)
- Input Impedance: 1.4-1.5 kΩ
- Reverse Polarity Protection: No
???? Installation & Hardware
- Terminal Blocks: 1756-TBNH or 1756-TBSH
- Mounting: Any ControlLogix slot (1-slot width)
- Isolation: 250V (inputs-to-backplane)
- Keying: Electronic/software configurable
????️ Environmental Ratings
- Temp Range: 0-60°C (operating)
- Humidity: 5-95% noncondensing
- Shock/Vibration: 30G operational | 50G nonoperating
- Certification: IEC 61000-6-4 emissions
???? Shipping Info
Contents: Module only
Carriers: FedEx, UPS, DHL
Weight: ~0.3 kg
???? Key Applications
- Microprocessor interface monitoring
- Digital sensor networks
- Test equipment status feedback
- Robotic control signal processing
❓ FAQ
Q: Why inverted logic?
A: TTL standard: Low voltage = True state
Q: Minimum off-state voltage?
A: 2.0V DC guaranteed
Q: Isolation between points?
A: Group-to-group only (8 points/group)
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