Siemens SINUMERIK 802DSL Modules: 802DSL 6FC5370-0AA00-2BA1

Technical Dossier

Product Details And Specifications

Siemens SINUMERIK 802DSL Series Technical Notes

The Siemens SINUMERIK 802DSL is a compact CNC control system engineered for turning and milling machines operating in demanding industrial environments. Deployed across chemical processing plants, nuclear facility maintenance workshops, oil refineries, and heavy-duty machining centers globally, the 802DSL occupies a well-established position in the mid-range CNC segment. Its panel-integrated architecture — combining the operator panel, NC core, and PLC into a single unit — reduces cabinet footprint and simplifies field replacement. The series supports up to 4 controlled axes and is compatible with Siemens SIMODRIVE 611U and SINAMICS S120 drive families, making it a standard retrofit and OEM choice across Asia, Europe, and the Middle East. As of 2026, the 802DSL has entered the mature/end-of-active-production phase; Siemens continues to provide spare parts and repair services, but new development has migrated to the SINUMERIK 808D and 828D platforms.

The Evolution of SINUMERIK 802DSL Architecture

The SINUMERIK 802 family was introduced by Siemens in the late 1990s as a cost-optimized CNC platform for standard machine tool builders. The lineage progressed as follows:

802S / 802C (1998–2002): Entry-level step/direction output controllers. No integrated drive interface. Targeted at simple 3-axis milling and 2-axis turning. Limited PLC capacity (64 I/O points).

802D (2001–2006): Introduced PROFIBUS-DP as the primary drive and I/O communication bus. Supported SIMODRIVE 611D digital drives. Operator panel and NCU remained separate units. This generation established the distributed I/O architecture that the 802DSL later consolidated.

802DSL (2005–present, mature phase): The SL designation indicates the Slim Line panel-integrated design. The NCU, operator panel (10.4 inch color TFT), and integrated PLC (256 I/O points via PROFIBUS) are housed in a single enclosure. Drive communication uses PROFIBUS-DP at 12 Mbit/s. The 802DSL supports ShopTurn and ShopMill conversational programming. Firmware versions span V4.x through V4.7 SP2, with compatibility constraints between firmware and drive software versions being a critical maintenance consideration.

Successor Platforms (808D / 828D): Machines originally specified with 802DSL are now being retrofitted to SINUMERIK 808D (panel-based, DRIVE-CLiQ interface) or 828D (high-performance, multi-axis). Direct hardware compatibility does not exist between generations; retrofits require new drive cabling, I/O mapping, and PLC program migration.

SINUMERIK 802DSL Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the SINUMERIK 802DSL ecosystem, classified by functional category.

Operator Panel / NCU (Integrated Units)

6FC5370-0AA00-2BA1: 802DSL operator panel unit, 10.4 inch color TFT, integrated NCU and PLC, PROFIBUS-DP, 4-axis CNC control.

6FC5370-0AA00-0AA0: 802DSL base panel unit, earlier hardware revision, 10.4 inch TFT, without USB interface, compatible with V4.4 and below firmware.

6FC5370-0AA00-1AA0: 802DSL panel unit, intermediate revision, added CF card slot for program backup, PROFIBUS-DP master.

6FC5370-0AA00-2AA0: 802DSL panel unit, 2nd generation slim housing, USB host port, supports ShopTurn V4.5+.

Machine Control Panels (MCP)

6FC5247-0AA00-0AA0: MCP 802DSL machine control panel, 50-key layout, PROFIBUS-DP slave, standard turning/milling key assignment.

6FC5247-0AA02-0AA0: MCP 802DSL machine control panel, extended version with handwheel connector and override switches.

I/O Modules (PROFIBUS-DP Peripherals)

6FC5211-0AA00-0AA0: PP 72/48 I/O module, 72 digital inputs / 48 digital outputs, 24 VDC, PROFIBUS-DP slave, DIN rail mount.

6FC5211-0AA00-1AA0: PP 72/48D I/O module, updated revision with diagnostic LED array, compatible with 802DSL V4.5+.

6FC5211-0AA01-0AA0: PP 72/48 I/O module, extended temperature range variant (-20 to +60 degrees C), for harsh environment installations.

Power Supply and Battery Units

6FC5247-0AA10-0AA0: 802DSL 24 VDC power supply module, 10 A output, integrated into panel mounting frame.

6FC5248-0AF00-0AA0: Backup battery module for SRAM data retention, 3.6 V lithium, panel-mount, retains NC parameters and PLC data during power loss.

Communication and Interface Modules

6FC5370-0AA00-3BA0: 802DSL with integrated Ethernet interface (RJ45), supports DNC file transfer and remote diagnostics via SINUMERIK HMI-Advanced.

6FC5370-0AA00-4BA0: 802DSL with RS-232 and Ethernet, dual communication interface variant, used in legacy DNC environments requiring serial transfer.

Handwheel and Manual Pulse Generator (MPG)

6FC5403-0AA10-0AA0: Electronic handwheel, 100 pulses/revolution, 3-axis selector, panel-mount or pendant-mount, PROFIBUS-DP connected.

6FC5403-0AA20-0AA0: Portable handwheel unit with 5 m cable, IP54 enclosure, emergency stop integrated, for 802DSL pendant operation.

Compact Flash / Memory Cards

6FC5850-0AA00-0AA0: 802DSL system CF card, 128 MB, pre-loaded with V4.7 SP2 firmware, required for NCU boot and parameter storage.

6FC5850-0AA00-1AA0: 802DSL CF card, 256 MB, extended storage for part programs and tool data, compatible with V4.6 and V4.7.

Sourcing Hard-to-Find & Obsolete SINUMERIK 802DSL Parts

DriveKNMS maintains a dedicated inventory of 802DSL components sourced from decommissioned OEM machines, factory overstock, and verified secondary market channels. All units are inspected prior to listing. For end-users operating 802DSL-equipped machines beyond the Siemens support window, DriveKNMS provides:

Quality Control for the SINUMERIK 802DSL Range

The 802DSL integrated architecture requires a multi-stage test protocol that differs from modular CNC systems. DriveKNMS applies the following procedures to all 802DSL units processed through its facility:

• Backplane Bus Integrity Test: PROFIBUS-DP communication between the integrated NCU and external I/O slaves (PP 72/48) is verified at 12 Mbit/s using a PROFIBUS analyzer. Cyclic data exchange, GSD file compliance, and slave address assignment are confirmed.
• TFT Panel Functional Check: The 10.4 inch color display is tested for pixel uniformity, backlight output (measured in cd/m2), and touch/key response across all 50+ operator keys.
• NC Parameter Retention Test: SRAM battery backup is verified by simulating a 72-hour power-off cycle. NC machine data, tool offsets, and zero point data are confirmed intact post-restoration.
• PLC I/O Scan Test: All digital I/O points on connected PP 72/48 modules are cycled through a test ladder program. Input response time and output switching current are measured against Siemens specification.
• Firmware Version Verification: CF card firmware version is confirmed and matched to the hardware revision of the panel unit to prevent boot failures caused by version mismatch.
• Drive Interface Simulation: PROFIBUS-DP communication with a simulated SIMODRIVE 611U axis drive is executed to confirm the NCU drive control telegram (type 105/106) is functioning correctly.