I. Core Specifications (Official Parameters)
| Item |
Detailed Parameters |
| Model |
1756-OB16I Series ControlLogix |
| Number of Channels |
16, single channel independent electrical isolation |
| Output Type |
12/24V DC sink current / sourcing current universal |
| Operating Voltage |
10–30V DC (rated 24V DC) |
| Maximum Current per Channel |
2 A @30°C; 1 A @60°C (linear derating) |
| Maximum Total Current of Module |
8 A @30°C; 4 A @60°C (linear derating) |
| Surge Current |
4 A / point, lasting 10 ms, repeatable every 2 s |
| Minimum Load Current |
1 mA / point |
| On-state Voltage Drop |
≤1.2 V DC @2 A |
| Turn-off Leakage Current |
≤0.5 mA / point |
| Output Delay |
Off→On: ≤1 ms; On→Off: ≤2 ms |
| Isolation Withstand Voltage |
Channel - Backplane: 250V DC continuous; Channel-to-Channel: 125V DC continuous; 1350V AC 2s test |
| Backplane Power Consumption |
5.1V: 350 mA; 24V: 2.5 mA; Total Power Consumption: 1.8 W |
| Maximum Power Consumption |
3.6 W @60°C |
| Net Weight |
0.20 kg (0.44 lbs) |
| Mounting |
Single-slot ControlLogix rack; Removable Terminal Block (RTB) |
| Terminal Type |
1756-TBCH / 1756-TBS6H |
| Fault Status |
Configurable: Hold Last State / Normally Open / Normally Closed (Default Normally Closed) |
| Environment |
0–60°C; 5–95% RH (Non-condensing); IP20; UL/CSA/CE Certified |
| Life Cycle |
Active (In Production) |
II. Key Features
- Fully Isolated Design: 16 independently isolated channels, strong anti-interference, good fault isolation, suitable for complex industrial environments.
- Wide voltage compatibility: 10–30V DC, suitable for 12V/24V industrial loads.
- High load capacity: Maximum 2A per channel, meeting the drive requirements of solenoid valves and high-power relays.
- Status indication: Green LED on each channel indicates output status; red LED on the module indicates fault.
- Flexible configuration: Output status can be configured via software in fault/programming modes.
- No reverse polarity protection: Pay attention to polarity during wiring; reverse connection may damage the module.
III. Logistics and Packaging Reference
- Net weight: 0.20 kg (module body, excluding terminal blocks).
- Gross weight suggestion: Including packaging and terminal blocks, calculated at 0.3–0.4 kg/unit.
- Dimensions: Standard ControlLogix single-slot module, approximately 118*138*30 mm.