Analog Input 6ES7590-1AE60-0AA0 6ES7 590-1AE60-0AA0 6ES759O-1AE6O-OAAO

Siemens 6ES7590-1AE60-0AA0 | SIMATIC S7-1500 Mounting Rail — Aluminium / Grounding Screw Included / Integrated DIN Rail / S7-1500 System

The Rail Every S7-1500 System Needs First

The 6ES7590-1AE60-0AA0 is a mounting rail for Siemens' SIMATIC S7-1500 PLC — the aluminium profile track that forms the mechanical and electrical foundation of every S7-1500 installation. No S7-1500 modules can be mounted without it. The rail is the first hardware item installed in any S7-1500 panel build.

Unlike the earlier S7-300 mounting rails, the S7-1500 mounting rail carries more capability in a single item. A grounding screw is included — no separate grounding hardware needs to be ordered and installed for the standard protective earth connection. This grounding connection is essential: the S7-1500 modules connect their chassis grounds to the rail, which in turn connects to the panel's protective earth network. Proper rail grounding is required for both electrical safety and EMC compliance.

The integrated DIN rail section along the bottom of the S7-1500 profile rail is a practical feature not found on the older S7-300 rail. This built-in DIN rail provides mounting space for accessories — terminal blocks, miniature circuit breakers, relays, and similar components — directly on the same rail assembly as the PLC modules. Accessories that must be placed close to the PLC modules, such as the 24V DC terminal blocks for module supply wiring, mount directly on the integral DIN rail without needing separate DIN rail segments installed alongside the PLC rail.

The 6ES7590 series covers the S7-1500 mounting rail in several standard lengths. Each length accommodates a defined set of S7-1500 CPU and I/O modules, with the specific part number selecting the rail length for the system configuration.

Key Specifications

S7-1500 Rail vs S7-300 Rail — Two Different Systems

The S7-1500 mounting rail (6ES7590 series) and the S7-300 mounting rail (6ES7390 series) are not interchangeable. The two PLC generations use different module mounting mechanisms and different rail profiles. S7-1500 modules mount by sliding onto the rail's top edge and clicking into position — a different engagement method from the S7-300's screw-and-hook mechanism. Using a 6ES7390 S7-300 rail for an S7-1500 installation, or vice versa, is not possible.

FAQ

Q1: Does the 6ES7590-1AE60-0AA0 fit all S7-1500 CPU and I/O modules?

The S7-1500 mounting rail accommodates all S7-1500 standard CPU modules, digital and analogue I/O modules, and communication modules. Specialty hardware (such as large interface modules with unusual dimensions) should be confirmed against the module's installation documentation. For most standard S7-1500 system builds, the mounting rail series serves the complete module range.

Q2: What is the integrated DIN rail section used for?

The integrated DIN rail on the S7-1500 mounting rail provides 35mm symmetrical DIN rail mounting for accessories such as terminal blocks, miniature circuit breakers, signal conditioners, and relay modules that need to be located adjacent to the S7-1500 system. Having this DIN rail integrated into the S7-1500 rail reduces the need for separate DIN rail installation alongside the PLC assembly, saving panel space and simplifying the panel layout.

Q3: How is the 6ES7590-1AE60-0AA0 grounding screw connected to the panel earth?

The included grounding screw provides a direct connection point between the aluminium rail and the panel's protective earth conductor. A low-resistance earth conductor is connected from the grounding screw terminal to the panel's earth busbar. This connection creates the chassis ground path for all S7-1500 modules mounted on the rail, ensuring both electrical safety and EMC shielding continuity.

Q4: Can the 6ES7590-1AE60-0AA0 be cut to a shorter length?

S7-1500 mounting rails can be cut with appropriate aluminium cutting tools. The cut end should be deburred to prevent injury and to ensure clean module mounting. However, the integrated DIN rail section must be considered when cutting — ensure the remaining length provides adequate DIN rail space for the accessories planned for that section. Siemens supplies rails in multiple standard lengths to minimise the need for cutting.

Q5: Where is the 6ES7590-1AE60-0AA0 sourced?

Through Siemens' authorised distribution network (Siemens Industry Mall and authorised distributors) and through the SIMATIC S7-1500 accessories aftermarket. The mounting rail is a standard accessory in the S7-1500 product family; it is actively produced and readily available. Confirm the 6ES7590-1AE60-0AA0 part number when ordering to ensure the correct rail length for the S7-1500 system configuration.