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Description
Application Scenarios
In a high-speed candy wrapping line in Central Europe, the original motion controller struggled to keep three servo axes—film feed, jaw drive, and product infeed—perfectly synchronized at 1200 packs per minute. Micro-slips in phase alignment caused film tearing and frequent rejects. By deploying the 6AU1240-1AB00-0AA0 as the SIMOTION C240 PN coordination controller, the integrator leveraged its onboard PROFINET determinism and 18DI/8DO local I/O to close cam profiles and registration loops without external interpolation cards. The line lead reported that the 6AU1240-1AB00-0AA0 held synchronization jitter below 50 microseconds even during rapid recipe changes, reducing film waste by 17% and eliminating the daily purge of out-of-phase rejects. This case illustrates how the controller resolves the classic pain point of multi-axis drift in fast packaging machinery—turning a chronic quality headache into a measurable OEE gain.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 6AU1240-1AB00-0AA0 |
| Manufacturer | Siemens |
| Product Category | Programmable Motion Controller (SIMOTION C240 PN) |
| Drive Communication | PROFINET, PROFIBUS |
| Onboard I/O | 18 Digital Inputs (DI) / 8 Digital Outputs (DO) |
| Input Voltage | 24 V DC |
| Required Firmware | V4.1 SP2 HF3/4 or higher |
| Net Weight | 1.15 kg |
| Protection Rating | IP20 |
| Mounting Method | DIN-Rail / Cabinet Mount |
| Dimensions (W×H×D) | 200 × 125 × 118 mm |
| Operating Temperature | -20 °C … +60 °C |
| Storage Temperature | -40 °C … +85 °C |
| Certifications | cULus, CE |
| Product Lifecycle | PM300 – Active Product |
Technical Principles and Innovative Values
Innovation Point 1: Unified Motion and Logic Execution. Unlike conventional PLC + standalone motion controller combinations that communicate over slow backplane buses, the 6AU1240-1AB00-0AA0 runs SIMOTION technology and IEC 61131-3 logic on a shared real-time kernel. This means camming, gearing, and registration functions execute in the same scan as the machine sequence logic, eliminating inter-device latency. The 6AU1240-1AB00-0AA0 thus delivers tighter phase accuracy than distributed architectures, especially critical for electronic line shafting across multiple servos.Innovation Point 2: Native PROFINET and PROFIBUS Drive Integration. The 6AU1240-1AB00-0AA0 communicates directly with SINAMICS drives over PROFINET IO and can simultaneously interface with legacy PROFIBUS DP networks via an optional IsoPROFIBUS board. This dual-protocol capability allows the 6AU1240-1AB00-0AA0 to serve as a migration bridge—plant engineers can modernize motion control while keeping existing PROFIBUS drive hardware in service, phasing the upgrade over multiple budget cycles rather than a single risky swap-out.Innovation Point 3: Dense Onboard I/O Eliminates Expansion Cards. With 18 DI and 8 DO integrated directly into the 6AU1240-1AB00-0AA0 chassis, machine builders can handle sensor detection, enable chains, and fast cam outputs without populating additional I/O modules. This reduces panel footprint, shortens wiring runs, and removes failure points. For the 6AU1240-1AB00-0AA0, the 8 DO channels are capable of fast cam output, enabling high-speed event triggering directly from the motion kernel.
Application Cases and Industry Value
A printing press manufacturer standardized the 6AU1240-1AB00-0AA0 across its 8-color rotary offset platform to replace an aging proprietary motion controller that had reached end-of-life. The press required perfect registration between blanket cylinders, plate cylinders, and the infeed web, with a positional tolerance of ±5 microns at 18,000 sheets per hour. After commissioning the 6AU1240-1AB00-0AA0 with SIMOTION cam editor and PROFINET drive links, the registration error dropped from ±12 microns to ±3 microns, and make-ready time between jobs decreased by 35% due to electronic cam profile downloads replacing mechanical gear changes. The plant engineering manager confirmed that the 6AU1240-1AB00-0AA0 paid back its automation upgrade investment within 11 months through reduced spoilage and faster job changeovers, while providing a clear path to Industry 4.0 data integration via its PROFINET infrastructure.
Related Product Combination Solutions
To build a complete SIMOTION automation cell around the 6AU1240-1AB00-0AA0, the following Siemens components form a proven combination:
- Siemens 6AU1240-1AA00-0AA0: The base SIMOTION C240 variant (non-PN) with identical onboard I/O and 2-axis control, suitable as a cost-optimized alternative to the 6AU1240-1AB00-0AA0 in PROFIBUS-only environments.
- Siemens 6AU1400-2PA23-0AA0: A 1 GB CompactFlash card containing SIMOTION firmware and user project data, essential for storing the 6AU1240-1AB00-0AA0 application program and enabling fast controller swap-out during service.
- Siemens SINAMICS S120: The natural drive platform for the 6AU1240-1AB00-0AA0, communicating over PROFINET for tightly synchronized servo and vector control.
- Siemens 6AU1240-1AB00-0CA0: The C240 PN bundle that includes the 6AU1240-1AB00-0AA0 together with a MultiMediaCard pre-loaded with a MultiAxes License, providing a ready-to-run multi-axis solution out of the box.
- Siemens SIMOTION D410-2 PN (6AU1410-0AB00-0AA0): A drive-based single-axis controller that complements the 6AU1240-1AB00-0AA0 in hybrid architectures where one axis needs to be located directly on a SINAMICS PM340 power module.
- Siemens SIMOTION P320-4: The industrial PC platform in the SIMOTION family that pairs with the 6AU1240-1AB00-0AA0 for HMI, visualization, and higher-level line coordination.
- Siemens IsoPROFIBUS Board: An expansion module for the 6AU1240-1AB00-0AA0 that adds two additional PROFIBUS DP interfaces for legacy drive integration.
