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1757-SRM | Allen-Bradley ControlLogix / ProcessLogix System Redundancy Module
- Regular price
- $439.00
- Sale price
- $439.00
- Regular price
-
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Product Description P/N: 1757-SRM
Description
The Allen-Bradley 1757-SRM is a System Redundancy Module designed for ControlLogix and ProcessLogix platforms to enable high-availability, redundant controller architectures. Installed as a two-slot module, it synchronizes a primary and secondary controller chassis through a fiber-optic link. With support for multimode 62.5/125 μm fiber and SC connectors, the 1757-SRM ensures seamless controller switchover for continuous process operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | PLCs/Machine Control |
| Part Number | 1757-SRM |
| Subcategory | System Redundancy Module |
| Manufacturer | Rockwell Automation |
| Series | ControlLogix / ProcessLogix |
| Module Type | Redundancy module |
| Slot Width | 2 slots |
| Backplane Current | 0.160 A @ 24 VDC |
| Power Dissipation (Max) | 11.28 W |
| Thermal Dissipation (Max) | 38.49 BTU/hr |
| Connector Type | SC fiber-optic connector |
| Supported Cable | 62.5/125 μm multimode fiber |
| Cable Length Options | 1, 3, 10, 50, 100 m (1757-SRC series) |
| Wavelength | 1300 nm |
| Channels | 1 (Tx/Rx fiber) |
| Supported Controllers | Logix 5560 |
| Enclosure Rating | Open-style (no enclosure) |
| Mounting | ControlLogix chassis |
| Operating Temperature | 0°C to 60°C (32–140°F) |
| Dimensions | 14.5 × 7 × 14 cm (5.71 × 2.76 × 5.51 in.) |
| Applications | High-availability and redundant control systems |
Information About 1757-SRM
The 1757-SRM provides the communication and synchronization bridge required for redundant Logix control systems. When paired with an identical 1757-SRM in a secondary chassis, the modules exchange state and data continuously to maintain synchronized operation. Status indicators provide clear diagnostics for primary/secondary status, communication health, and module condition. The module is compatible with standard ControlLogix chassis sizes and approved power supplies, and it uses dedicated 1757-SRCxx fiber optic cables to establish the redundancy link. Common applications include high-availability process control, critical manufacturing lines, and systems where downtime must be avoided.
Key Features
- Enables controller redundancy: Synchronizes primary and secondary Logix controllers.
- Fiber-optic link: Uses SC-type multimode fiber (62.5/125 μm) for high-speed communication.
- Two-slot module design: Fits designated redundancy slots in ControlLogix chassis.
- Supports multiple chassis sizes: Compatible with 1756-A4, A7, A10, A13, and A17.
- Status LEDs: Provide clarity on communication, health, and primary/secondary role.
- Redundant operation continuity: Ensures uninterrupted control during controller failure.
- Wide cable length options: Supports 1 m to 100 m using 1757-SRC cables.
The 1757-SRM delivers the reliability and precision required for high-availability ControlLogix and ProcessLogix redundancy systems.
Description
The Allen-Bradley 1757-SRM is a System Redundancy Module designed for ControlLogix and ProcessLogix platforms to enable high-availability, redundant controller architectures. Installed as a two-slot module, it synchronizes a primary and secondary controller chassis through a fiber-optic link. With support for multimode 62.5/125 μm fiber and SC connectors, the 1757-SRM ensures seamless controller switchover for continuous process operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | PLCs/Machine Control |
| Part Number | 1757-SRM |
| Subcategory | System Redundancy Module |
| Manufacturer | Rockwell Automation |
| Series | ControlLogix / ProcessLogix |
| Module Type | Redundancy module |
| Slot Width | 2 slots |
| Backplane Current | 0.160 A @ 24 VDC |
| Power Dissipation (Max) | 11.28 W |
| Thermal Dissipation (Max) | 38.49 BTU/hr |
| Connector Type | SC fiber-optic connector |
| Supported Cable | 62.5/125 μm multimode fiber |
| Cable Length Options | 1, 3, 10, 50, 100 m (1757-SRC series) |
| Wavelength | 1300 nm |
| Channels | 1 (Tx/Rx fiber) |
| Supported Controllers | Logix 5560 |
| Enclosure Rating | Open-style (no enclosure) |
| Mounting | ControlLogix chassis |
| Operating Temperature | 0°C to 60°C (32–140°F) |
| Dimensions | 14.5 × 7 × 14 cm (5.71 × 2.76 × 5.51 in.) |
| Applications | High-availability and redundant control systems |
Information About 1757-SRM
The 1757-SRM provides the communication and synchronization bridge required for redundant Logix control systems. When paired with an identical 1757-SRM in a secondary chassis, the modules exchange state and data continuously to maintain synchronized operation. Status indicators provide clear diagnostics for primary/secondary status, communication health, and module condition. The module is compatible with standard ControlLogix chassis sizes and approved power supplies, and it uses dedicated 1757-SRCxx fiber optic cables to establish the redundancy link. Common applications include high-availability process control, critical manufacturing lines, and systems where downtime must be avoided.
Key Features
- Enables controller redundancy: Synchronizes primary and secondary Logix controllers.
- Fiber-optic link: Uses SC-type multimode fiber (62.5/125 μm) for high-speed communication.
- Two-slot module design: Fits designated redundancy slots in ControlLogix chassis.
- Supports multiple chassis sizes: Compatible with 1756-A4, A7, A10, A13, and A17.
- Status LEDs: Provide clarity on communication, health, and primary/secondary role.
- Redundant operation continuity: Ensures uninterrupted control during controller failure.
- Wide cable length options: Supports 1 m to 100 m using 1757-SRC cables.
The 1757-SRM delivers the reliability and precision required for high-availability ControlLogix and ProcessLogix redundancy systems.