Siemens SIMATIC S7 USB-Prommer 6ES7 792-0AA00-0XA0

Technical Dossier

Product Details And Specifications

Siemens SIMATIC S7 USB-Prommer Series Technical Notes

The Siemens SIMATIC S7 USB-Prommer (6ES7 792-0AA00-0XA0) is a field-service and programming utility device used to read, write, and copy firmware and program data on SIMATIC S7-300 and S7-400 CPUs and memory cards without requiring a PC running STEP 7. It occupies a critical role in the maintenance infrastructure of heavy industrial installations including petrochemical refineries, nuclear power auxiliary systems, offshore platforms, and large-scale chemical processing plants. Its standalone operation capability makes it indispensable in environments where PC-based programming stations are unavailable or restricted. The device interfaces directly with Siemens MMC (Micro Memory Cards) and standard memory cards, enabling rapid firmware transfer, backup, and restore operations on the plant floor. As the S7-300 and S7-400 platforms enter their extended lifecycle phase, the USB-Prommer remains a high-demand spare part for facilities committed to long-term operation of legacy SIMATIC infrastructure.

The Evolution of SIMATIC S7 Programming Tool Architecture

Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.

SIMATIC S7 USB-Prommer & Compatible Accessories — Full Catalog & Functionalities (SKU List)

The following SKUs represent the core USB-Prommer unit, compatible memory cards, and directly associated S7-300/400 service accessories. Each entry reflects a verified Siemens catalog reference.

Programming & Service Tools

• 6ES7 792-0AA00-0XA0: USB-Prommer for S7-300/400 MMC — standalone read/write/copy device, USB-powered, no PC software required.
• 6ES7 972-0CB20-0XA0: PC Adapter USB A2 — MPI/PROFIBUS-to-USB interface for STEP 7 online programming of S7-300/400.
• 6ES7 972-0CA23-0XA0: PC Adapter for MPI — RS-232 serial interface adapter for legacy STEP 7 connections.
• 6GK1571-0BA00-0AA0: SIMATIC NET USB adapter CP5711 — PROFIBUS/MPI USB adapter for TIA Portal and STEP 7.
• 6GK1571-1AA00: SIMATIC NET CP5512 — PCMCIA PROFIBUS/MPI adapter for notebook-based programming stations.

SIMATIC S7-300 Micro Memory Cards (MMC) — USB-Prommer Compatible

• 6ES7 953-8LF31-0AA0: MMC 4 MB — standard program storage for S7-300 CPUs (CPU 312–319).
• 6ES7 953-8LG11-0AA0: MMC 8 MB — extended program and data storage for S7-300 series.
• 6ES7 953-8LJ20-0AA0: MMC 64 MB — high-capacity MMC for large S7-300 user programs and data logging.
• 6ES7 953-8LJ30-0AA0: MMC 64 MB (current revision) — replacement for 8LJ20, same form factor and function.
• 6ES7 953-8LL20-0AA0: MMC 128 MB — maximum-capacity MMC for S7-300, supports large DB and archiving applications.
• 6ES7 953-8LP31-0AA0: MMC 512 KB — compact program card for smaller S7-300 CPU variants (CPU 312C, 313C).
• 6ES7 953-8LM32-0AA0: MMC 2 MB — mid-range capacity for standard S7-300 control applications.

SIMATIC S7-400 Memory Cards — USB-Prommer Compatible

• 6ES7 952-1AK00-0AA0: S7-400 RAM Memory Card 256 KB — volatile program memory for S7-400 CPUs.
• 6ES7 952-1AL00-0AA0: S7-400 RAM Memory Card 1 MB — extended volatile memory for S7-414/416 CPUs.
• 6ES7 952-1AP00-0AA0: S7-400 RAM Memory Card 4 MB — high-capacity volatile memory for S7-417 and redundant CPU configurations.
• 6ES7 952-1KK00-0AA0: S7-400 Flash Memory Card 1 MB — non-volatile load memory for S7-400 series.
• 6ES7 952-1KL00-0AA0: S7-400 Flash Memory Card 4 MB — extended non-volatile load memory for large S7-400 programs.
• 6ES7 952-1KP00-0AA0: S7-400 Flash Memory Card 16 MB — maximum-capacity flash load memory for S7-417 and H-system CPUs.