Overview
The Allen-Bradley 1756-M16SE is a ControlLogix SERCOS interface module designed to integrate multi-axis servo motion control directly into Rockwell Automation PACs. This 16-axis module uses fiber-optic communication to achieve noise-immune, real-time control of compatible Kinetix servo drives, eliminating traditional hardwired connections and reducing electrical noise in high-performance automation systems.
Key Features
- 16 servo axes per module with support for dual modules (32 axes per controller)
- Fiber-optic interface — single digital link replaces individual wiring per drive, reducing EMI
- SERCOS data rates: 4 Mbps and 8 Mbps for flexible cycle-time performance
- Control modes: Position, Velocity, and Torque
- Compatible drives: Kinetix 2000 (2093), Kinetix 6000 (2094), Kinetix 7000 (2099), Ultra3000 SERCOS (2098)
- Open enclosure — mounts to any slot in ControlLogix chassis (1756-A4, A7, A10, A13, A17)
Technical Specifications
- Module Type: 16-Axis SERCOS Interface Module
- Slot Width: 1 module
- Operating Voltage: 24 VDC supply
- Current Draw (5.1 V): 1.2 A
- Backplane Power Consumption: 6.2 W
- Isolation Voltage: 50 V continuous
- SERCOS Data Rates: 4 Mbps, 8 Mbps
- Cycle Time @ 4 Mbps: 0.5 ms (2 drives), 1 ms (4 drives), 2 ms (8 drives)
- Cycle Time @ 8 Mbps: 0.5 ms (4 drives), 1 ms (8 drives), 2 ms (16 drives)
- Operating Temperature: 0°C to 60°C
- Dimensions: 10.8 cm × 5.1 cm × 15.2 cm
- Weight: 0.45 lbs (290 g)
- Certifications: CE, UKCA, CUL, UL, KC, RCM
- Connection Type: Fiber-optic (plastic or glass), screw terminals
Typical Applications
- CNC machine tools (mills, lathes, multi-axis mills)
- Robotic systems requiring synchronized multi-axis control
- Packaging and labeling machinery
- Material handling conveyors and sortation systems
- Food and beverage processing lines
- High-speed automation requiring real-time servo synchronization
Compatibility & Replacements
The 1756-M16SE installs into any available slot of a ControlLogix 1756 chassis and integrates with Kinetix servo drive families: 2093 (Kinetix 2000), 2094 (Kinetix 6000), 2099 (Kinetix 7000), and 2098 (Ultra3000 SERCOS). It works with standard and redundant ControlLogix power supplies including PA72/C, PA75/B, PB72/C, PB75/B, PC75/B, PH75/B, PA75R, PB75R, and PSCA2 modules. Parallel modules in the same controller support up to 32 axes. For motion programming, the module integrates with Studio 5000 Logix Designer and CompactLogix platforms requiring equivalent firmware versions.
