Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 6AU1240-1AB00-0AA0 |
| Manufacturer | Siemens AG (SIMOTION C-series) |
| Product Type | Programmable Motion Controller (Box-type, Fanless) |
| Supply Voltage | 24 V DC (20.4 … 28.8 V DC) |
| Onboard Digital Inputs | 18 DI, 24 V DC, 6 µs→15 µs input delay |
| Onboard Digital Outputs | 8 DO, 24 V DC, 0.5 A/ch, short-circuit protected |
| Encoder Inputs | 4 × RS-422, 5 V, up to 1 MHz, incremental or SSI absolute |
| Drive Interface | DRIVE-CLiQ (chains to SINAMICS S120 CU320-2 / PM340 / ALM) |
| Fieldbus – PROFINET | Yes, 2× RJ45 + service port, 3-port switch, IRT + RT, IO Controller/Device, MRP |
| Fieldbus – PROFIBUS DP | Yes, via IsoPROFIBUS expansion board, dual-port |
| Memory | RAM 122 MB + 20 MB Java RAM; retentive 108 kB; CFast user ~1.5 GB |
| Programming Environments | SIMOTION SCOUT / TIA Portal + SIMOTION option; MCC, LAD, FBD, ST |
| Motion Tech Objects | POS (positioning), GEAR (electronic gearing), CAM (electronic cam), PATH (interpolation) |
| Operating Temperature | -20°C to +60°C |
| Protection Class | IP20 per EN 60529 (IEC 60529) |
| Dimensions (W×H×D) | 200 × 125 × 118 mm (7.87 × 4.92 × 4.65 in) |
| Weight | ~1.15 kg (C2xx family), storage card ~16 g |
| Firmware Baseline | V4.1 SP2 HF3+; V5.5 SP1+ recommended (security patch) |
Main Features and Advantages
C-series independent box architecture vs. D-series mezzanine. The Siemens 6AU1240-1AB00-0AA0 is built as a self-contained industrial box, not a daughter-card that clips onto a SINAMICS PM340. This gives engineers freedom in cabinet layout — DIN-rail or panel mount — and makes it far easier to deploy in retrofit scenarios where an S120 booksize lineup already exists but a separate motion controller brain is preferred for decentralization or spare-parts commonality.Dual-fieldbus bridging for modernization projects. The “PN” suffix is the differentiator: the Siemens 6AU1240-1AB00-0AA0 carries native PROFINET IO controller capability (2× RJ45 with MRP ring, IRT isochronous) plus PROFIBUS DP via an IsoPROFIBUS expansion. In plants migrating from PROFIBUS to PROFINET, one controller talks both worlds — PROFINET upstream to an S7-1500 cell PLC and HMI, PROFIBUS downstream to a legacy S120 drive line or third-party DP-only drives. That bridge capability alone extends the hardware’s viable lifecycle by years.Onboard I/O density that eliminates expansion racks. 18 DI + 8 DO + 4 encoder inputs live directly on the Siemens 6AU1240-1AB00-0AA0 housing. For machine-level signals — guard-door release, E-stop chain, home/limit switches, cam-trigger photoeyes, reject flaps — keeping them on the motion controller rather than a remote ET 200 rack tightens the sensor → motion-decision → output latency. The 4 encoder inputs (RS-422, 1 MHz) can land a measuring wheel, a master-axis encoder for gear-in, or an SSI absolute multiturn for homing without an external encoder interface module. On a 3–5 axis converting line, the Siemens 6AU1240-1AB00-0AA0 often requires zero expansion I/O — everything lands onboard.Scalable multi-axis coordination via DRIVE-CLiQ. Chained through CU320-2 control units (each CU320-2 manages up to 6 servo/vector axes in Servo mode, more in V/f), the C240 PN transparently spans cam/gear/path technology objects across CU boundaries. A single Siemens 6AU1240-1AB00-0AA0 can coordinate 6–12+ axes comfortably, beating the D410-2’s 8-axis ceiling while staying below the D4x5 price tier.Engineering flexibility. Programmers can use MCC (graphical motion wiring), LAD, FBD, or ST inside SIMOTION SCOUT or TIA Portal. The Siemens 6AU1240-1AB00-0AA0 supports the full SIMOTION technology object library — POS, GEAR, CAM, PATH — plus Java runtime for custom HMI or data-exchange logic. An Ethernet service port (separate from the PN IO ports) lands PG/PC for SCOUT downloads and online diagnostics; USB ports accept a service mouse/keyboard or flash drive for project backup — small conveniences that matter during a 10 PM machine startup.Security and lifecycle. Siemens addressed CISA ICSA-23-166-04 (unauthenticated TO-config extraction) starting V5.5 SP1. Running the Siemens 6AU1240-1AB00-0AA0 on current firmware keeps the motion layer compliant in audited plants.
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