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The Allen-Bradley 1746-IO12 is a SLC 500 Digital I/O Combination Module. This Digital I/O Combination Module has Six (6) Input channels with Operating Voltage range of 85-132 Volts AC and Six (6) relay output channels. This module occupies single slot of the SLC 500 chassis. |
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UPC |
662073902690 |
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Weight |
1.00 lbs (0.45 kg) |
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Operating Voltage |
85-132 Volts AC |
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Module Type |
Digital I/O Combination Module |
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Input Operating Voltage |
120 VAC Volts AC |
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Technical specifications
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Manufacturer |
Allen Bradley |
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Category |
PLCs |
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Product Line |
SLC 500 |
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Part Number |
1746-IO12 |
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UPC |
662073902690 |
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Weight |
1.00 lbs (0.45 kg) |
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Operating Voltage |
85-132 Volts AC |
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Module Type |
Digital I/O Combination Module |
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Input Operating Voltage |
120 VAC Volts AC |
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Inputs |
Six (6) 120VAC inputs |
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Output Operating Voltage |
24-125 VDC; 120 - 240 VAC |
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Signal delay |
35-45 milliseconds |
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Outputs |
Six (6) Form A Contacts |
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Current/Output (24VDC) |
1.2 amps |
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Current/Output (120 VAC) |
1.5 amps |
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Continuous Current per module |
8.0 A |
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Backplane Current |
70-90 mA |
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Current/Output |
(24VDC)1.2 amps; (120 VAC)1.5 amps |
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Applications |
Combination 120 Volts AC I/O |
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Slot Width |
1 |
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Area Classification |
Certified for Class 1, Division 2 hazardous location by CSA. |
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Manufacturer |
Allen Bradley |
Descripution
The Allen-Bradley 1746-IO12 is a combination Input / Output module that belongs to the SLC 500 controller platform.
This module is a single slot module that directly installs to the SLC 500 chassis. It has Six (6) 120 VAC inputs and Six (6) Form A contact output (Normally Open). This module is a cost-effective component as it allows chassis slot and panel slot saving through the module’s dual operation capability.
The input functionality of this voltage is similar to the 1746-IA16 module that accepts voltage range of 85-132 VAC. However, it has lesser number of inputs. The Relay output of this module is comparable to the 1746-IO8 or 1746-IO4, having more relay outputs compared to the 1746-IO4 and lesser outputs compared to 1746-IO8.
Similar to other SLC 500 modules, this combination module may also be mixed with other modules of the SLC 500 product family and be placed in expansion or local chassis except the slot dedicated for the Programmable Logic Controller (PLC) processor.
The module’s operation may be degraded when exposed to chemicals. Regular maintenance and loop validation are recommended to determine if the module’s operation remains within the acceptable operating limits and process reaction. If a significant degradation is found, the module may be replaced with the same part-number without any reconfiguration needed however, only replace modules without an active supply power.
Wiring Diagrams
FAQ
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Q1. How does the AB 1746-IO12 streamline mixed-signal interfacing requirements within sophisticated SLC 500 automation ecosystems? |
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A: The AB 1746-IO12 combines analog input and analog output capabilities in a single module, enabling efficient signal acquisition and control while reducing rack space requirements and simplifying system architecture. |
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Q2. What advanced signal-processing characteristics distinguish the AB 1746-IO12 in precision monitoring and control applications? |
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A: The AB 1746-IO12 delivers high-resolution analog data conversion, providing accurate measurement and output performance for process variables such as pressure, flow, temperature, and level. |
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Q3. Why is the AB 1746-IO12 considered a versatile solution for closed-loop process control environments? |
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A: By integrating both input and output channels, the AB 1746-IO12 supports real-time feedback and control functions, allowing PLC systems to monitor field signals and simultaneously regulate actuators or control devices. |
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Q4. How can the AB 1746-IO12 enhance operational efficiency in demanding industrial process automation installations? |
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A: The AB 1746-IO12 minimizes hardware complexity by consolidating analog I/O functions into a single module, reducing installation costs, wiring requirements, and maintenance efforts while improving overall system scalability. |
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Q5. In what industrial scenarios does the AB 1746-IO12 demonstrate optimal performance, and what engineering advantages does it provide? |
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A: The AB 1746-IO12 is particularly well-suited for applications such as chemical processing, water treatment, energy production, and manufacturing automation, where precise analog signal monitoring and control are critical to maintaining process stability and product quality. |
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