


Product Description
Product Details
Manufacturer: Allen-Bradley
Model/Part Number: 1756-OB16E
Description: DC Digital I/O Module
Specifications
Attribute |
Value |
---|---|
Outputs |
16 electronically fused (8 points per group) |
Voltage Category |
12/24V DC source |
Operating Voltage Range |
10…31.2V DC |
Output Delay Time |
Off to On: 70 µs nom/1 ms max On to Off: 360 µs nom/1 ms max |
Current Draw @ 5.1V |
250 mA |
Current Draw @ 24V |
2 mA |
Total Backplane Power |
1.32 W |
Power Dissipation (max) |
4.1 W @ 60 °C (140 °F) |
Thermal Dissipation |
13.98 BTU/hr |
Off-State Leakage Current |
1 mA per point (max) |
On-State Voltage Drop |
400 mV DC @ 1 A (max) |
Current per Point (max) |
1 A @ 60 °C (140 °F) |
Current per Module (max) |
8 A @ 60 °C (140 °F) |
Surge Current per Point |
2 A for 10 ms per point, repeatable every 2 s @ 0 °C (32 °F) @ 24V DC |
Load Current (min) |
3 mA per point |
Scheduled Outputs |
Synchronization within 16.7 s max, reference to Coordinated System Time |
States in Fault Mode |
Hold last state, On or Off (default: Off) |
States in Program Mode |
Hold last state, On or Off (default: Off) |
Isolation Voltage |
250V (continuous), basic insulation type, outputs-to-backplane, and output group-to-group No isolation between individual group outputs |
Module Keying |
Electronic, software configurable |
Fusing |
Electronically fused per group |
Removable Terminal Block |
1756-TBNH, 1756-TBSH |
RTB Keying |
User-defined mechanical |
Slot Width |
1 |
Wire Category |
1 |
Enclosure Type |
None (open-style) |
Temperature Code |
T4 |