
Application Scenarios
Picture a high-speed rotary filling-and-capping monoblock on a beverage line, where sixteen Kinetix 6000 servo axes synchronize the carousel rotation, valve-lift plungers, capping heads, and reject gates in a single coordinated motion group. Wiring each of these axes with conventional ±10 V analog command plus encoder feedback would require roughly 288 individual conductors threading through a food-grade stainless enclosure — a cable burden that invites noise, drift, and nightly re-zeroing. Deploying one 1756-M16SE collapses the entire servo backbone into a single plastic-fiber SERCOS ring that daisy-chains from the ControlLogix chassis, through each Kinetix 6000 drive, and back to the module’s receive port. The 8 Mbps data rate of the 1756-M16SE holds a 2 ms SERCOS cycle time across all sixteen axes, letting the motion planner issue position, velocity, and torque commands synchronously with the I/O scan. When a capping head needs a recipe change, the Logix controller pushes new motion parameters down the same fiber link in milliseconds — no re-tuning, no analog re-calibration, no ground-loop chasing. On machines where a legacy analog motion controller is being replaced, the 1756-M16SE is the natural drop-in upgrade path into the ControlLogix family.
Parameter
| Main Parameters | Value / Description |
|---|---|
| Product Model | 1756-M16SE (Series A) |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Category | ControlLogix 16-Axis SERCOS Interface Module (chassis-based motion master) |
| Maximum Drives Supported | 16 SERCOS servo drives per module |
| SERCOS Data Rate | 4 Mbps or 8 Mbps (selectable) |
| SERCOS Cycle Time @ 4 Mbps | 0.5 ms (up to 2 drives), 1 ms (up to 4), 2 ms (up to 8) |
| SERCOS Cycle Time @ 8 Mbps | 0.5 ms (up to 4 Kinetix 6000 drives), 1 ms (up to 8), 2 ms (up to 16) |
| Drive Control Modes | Position, velocity, and torque |
| Field Wiring | Single fiber-optic ring — transmit (TX) and receive (RX) ports on bezel |
| Fiber Cable Types | Plastic: 2090-SCEPxx-0 / 2090-SCVPxx-0 / 2090-SCNPxx-0; Glass: 2090-SCVGxx-0 |
| Fiber Segment Length | Up to ~50 m plastic; up to ~250 m glass per SERCOS transmission section |
| Backplane Current | 760 mA @ 5.1 V DC; 2.5 mA @ 24 V DC |
| Power Dissipation | 5.0 W |
| Slot Width | 1 ControlLogix slot (any slot in chassis) |
| Compatible Chassis | 1756-A4, -A7, -A10, -A13, -A17 |
| Compatible Drives | 2093 Kinetix 2000, 2094 Kinetix 6000, 2099 Kinetix 7000, 2098 Ultra3000 SERCOS |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Relative Humidity | 5–95% noncondensing |
| Vibration / Shock | 2 g @ 10–500 Hz operating; 30 g operating shock, 50 g non-operating |
| Temperature Code | T4A (North America) |
| Certifications | c-UL-us Listed, Class I Div 2 Groups A/B/C/D, CE (EN 61326-1, EN 61131-2), C-Tick |
| Weight | Approx. 1.0 kg (2.2 lb) |
| Programming Software | RSLogix 5000 / Studio 5000 Logix Designer (MOTION-UM001) |