Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Allen Bradley 1756-OB8 ControlLogix DC Digital Output Module
- Product Details
- FAQs
- Related
- Contact Us
- Packing & Delivery
- Product Ratings
Product Introduction
The Allen-Bradley 1756-OB8 is a ControlLogix DC digital output module designed for applications requiring reliable DC switching, moderate output current, and seamless integration within ControlLogix systems. As part of the ControlLogix I/O family, this module provides high performance for controlling industrial DC loads while maintaining predictable behavior across all channels.
The 1756-OB8 is commonly deployed in industrial control environments where compact size, channel-level current sourcing, and stable DC output operation are essential. Its design includes isolation and efficient power management, making it suitable for automation systems with multiple output requirements and sensitive control electronics.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | ControlLogix DC Digital Output Module |
| Output Type | DC Digital Output |
| Number of Outputs | 8 channels |
| Output Configuration | Current sourcing |
| Rated Output Voltage | 12 / 24 VDC |
| Output Current per Channel | 2 A sourcing |
| Isolation Voltage | 50 V continuous |
| Total Backplane Power | 0.89 W |
| Power Dissipation (max) | 2.5 W at 60 °C |
| Signal Switching | Electronic DC switching |
| Chassis Compatibility | ControlLogix chassis |
| Control Platform | ControlLogix automation system |
| Industrial Rating | Designed for industrial control environments |
| Dimensions | 144.5 × 34.6 × 130.18 mm |
| Weight | 0.34 kg |
Applications
• Used for control of DC actuators and devices, including solenoid valves, relays, and small interface modules
• Suitable for automation systems requiring moderate current sourcing per channel
• Applied in process control and manufacturing lines where compact output modules are preferred
• Commonly installed in material handling, packaging, and assembly systems
• Ideal for applications that require efficient power usage and low thermal dissipation
Advantages
• 2 A per channel sourcing enables reliable control of medium-power DC devices
• 8-channel density balances output capacity with compact module size
• 50 V isolation voltage provides protection against electrical interference and backplane disturbances
• Low total backplane power and dissipation reduce heating and improve cabinet thermal management
• Seamless ControlLogix integration allows easy configuration, diagnostics, and monitoring
• Designed for stable operation in electrically noisy industrial environments
FAQ
-
What type of loads is the 1756-OB8 suitable for?
It is ideal for medium-power DC loads such as solenoids, relays, and interface actuators. -
How does current sourcing benefit field wiring?
Current sourcing outputs provide a positive voltage to the load, simplifying wiring and enabling common sourcing device configurations. -
Can the module operate in high-density I/O systems?
Yes, its 8-channel design allows integration into compact chassis alongside other ControlLogix modules. -
What is the significance of the isolation voltage?
The 50 V continuous isolation protects the backplane and control system from electrical interference or faults on the field side. -
How does the module handle thermal dissipation?
Maximum power dissipation is 2.5 W at 60 °C, which is managed through efficient design and standard chassis ventilation. -
Is the module suitable for fast-switching DC outputs?
Yes, its electronic switching design supports reliable and repeatable operation. -
Can this module coexist with AC output modules?
Yes, AC and DC modules can be installed in the same ControlLogix chassis when properly configured. -
How is output status monitored?
Output states are communicated via the ControlLogix backplane for real-time monitoring and diagnostics. -
What considerations are important when wiring DC sourcing outputs?
Correct conductor sizing, polarity, and compliance with industrial wiring standards are essential. -
Can the 1756-OB8 be used in distributed control architectures?
Yes, it is suitable for centralized or distributed ControlLogix I/O systems where multiple DC outputs are required.
Related Models
| Model | Description |
|---|---|
| 1756-OB16 | 16-channel DC digital output module |
| 1756-OB16I | Isolated 16-channel DC output module |
| 1756-OB16E | Enhanced 16-channel DC output module |
| 1756-OB32 | High-density DC output module |
| 1756-OA16 | 16-point AC digital output module |
| 1756-OW16I | Isolated relay output module |
Popular Models
| Model | Description |
|---|---|
| 1756-L81E | ControlLogix high-performance controller |
| 1756-L83E | Advanced ControlLogix controller |
| 1756-EN2TR | EtherNet/IP communication module |
| 1756-PA75 | ControlLogix AC power supply |
| 1756-IF16 | 16-channel analog input module |
| 1756-A7 | 7-slot ControlLogix chassis |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
Click to rate this post!
[Total: 0 Average: 0]
