Introduction
The Siemens 6AG2512-1DK01-4AB0 SIPLUS ET 200SP CPU 1512SP-1 PN RAIL is a distributed automation controller designed for railway-related and demanding industrial applications. Based on the SIMATIC ET 200SP CPU 1512SP-1 PN, this TX RAIL variant combines PLC processing, PROFINET IRT communication, and conformal-coated electronics in a compact form factor.
Its defining characteristic is its extended temperature capability. The unit is specified for operation from -40°C to +70°C, with short-duration operation up to +85°C for 10 minutes under the applicable conditions. This makes it suitable for system designs that must account for wider ambient temperature variations while maintaining coordinated control of networked automation equipment.
With 200 KB of program memory, 1 MB of data memory, and 48 ns bit performance, the CPU supports a range of machine-control and distributed automation tasks. Its integrated three-port PROFINET switch simplifies network architecture, while the required SIMATIC Memory Card supports the controller's memory functions.
The 6AG2512-1DK01-4AB0 has been cancelled and replaced by 6AG2512-1DM03-4AB0. For replacement projects, engineers should verify the successor's hardware and software compatibility, interface requirements, and operating conditions before finalizing a migration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Article Number | 6AG2512-1DK01-4AB0 |
| Product Name | SIPLUS ET 200SP CPU 1512SP-1 PN RAIL |
| Variant | TX RAIL |
| Base Model | 6ES7512-1DK01-0AB0 |
| Product Type | Central Processing Unit |
| Application | Distributed industrial and railway automation |
| Program Work Memory | 200 KB |
| Data Work Memory | 1 MB |
| Bit Performance | 48 ns |
| Communication Interface | PROFINET IO |
| PROFINET Capability | IRT |
| Integrated Switch | Three-port switch |
| Pluggable BusAdapter | Not supported on this variant |
| Memory Card | SIMATIC Memory Card required |
| Conformal Coating | Yes |
| Operating Temperature | -40°C to +70°C |
| Short-Duration Temperature | Up to +85°C for 10 minutes under specified conditions |
| Engineering Software | STEP 7 in TIA Portal |
| Mounting System | SIMATIC ET 200SP |
| Dimensions (W × H × D) | 100 × 117 × 75 mm |
| Weight | Approx. 470 g |
| Product Lifecycle | Cancelled |
| Substitute Model | 6AG2512-1DM03-4AB0 |
Recommended Companion Models
| Model | Product Name |
|---|---|
| 6AG2193-6AR00-4AA0 | SIPLUS ET 200SP BA 2XRJ45 TX RAIL BusAdapter |
| 6AG2193-6AF00-4AA0 | SIPLUS ET 200SP BA 2XFC TX RAIL BusAdapter |
| 6AG1193-6AA00-0AA0 | SIPLUS ET 200SP Mounting Kit |
| 6AG2136-6BA00-1CA0 | SIPLUS ET 200SP F-DI 8x24VDC HF Fail-Safe Digital Input Module |
Frequently Selected Alternatives
| Model | Product Name |
|---|---|
| 6AG2512-1DM03-4AB0 | SIPLUS ET 200SP CPU 1512SP-1 PN RAIL Central Processing Unit |
| 6AG2512-1DK01-1AB0 | SIPLUS ET 200SP CPU 1512SP-1 PN RAIL Central Processing Unit |
| 6AG2510-1DK03-4AB0 | SIPLUS ET 200SP CPU 1510SP-1 PN RAIL Central Processing Unit |
| 6AG2512-1SK01-4AB0 | SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL Fail-Safe Central Processing Unit |


