Siemens SIMATIC Panel PC 870 Modules: 6AV7870-0HE21-1AA0

Technical Dossier

Product Details And Specifications

Siemens SIMATIC Panel PC 870 Series Technical Notes

The Siemens SIMATIC Panel PC 870 is an industrial-grade panel computer platform deployed across heavy-process industries including petrochemical refineries, nuclear power facilities, offshore platforms, and large-scale chemical plants. Introduced as part of Siemens' SIMATIC HMI portfolio, the Panel PC 870 occupies the high-performance tier of the range, designed for operator workstation applications requiring sustained 24/7 operation under harsh environmental conditions. Its ruggedized enclosure, fanless cooling options, and wide operating temperature tolerance made it a standard specification in DCS operator stations, SCADA visualization nodes, and MES integration terminals throughout the 2000s and 2010s. Installed base across global heavy industry remains substantial, making spare part availability and lifecycle support a critical operational requirement for plant maintenance teams.

The Evolution of SIMATIC Panel PC 870 Architecture

The SIMATIC Panel PC 870 was developed as a successor to earlier SIMATIC Panel PC 670 and 477 platforms, addressing the need for higher processing throughput and expanded display options in operator interface applications. Early variants shipped with Intel Celeron and Pentium III processors paired with Windows 2000 or Windows XP Embedded, targeting SCADA and DCS visualization roles. Mid-generation revisions introduced Pentium 4 and Celeron D processors, expanded RAM ceilings to 2 GB DDR, and added PCI expansion slots for fieldbus communication cards (PROFIBUS, Industrial Ethernet). Later production runs incorporated Intel Core 2 Duo architecture, enabling parallel process visualization and historian client functions on a single unit.

The display subsystem evolved from 15-inch XGA TFT panels to 17-inch and 19-inch SXGA configurations, with resistive touchscreen overlays becoming standard across most SKUs. The backplane architecture supports ISA and PCI expansion in earlier variants, transitioning to PCI-only in later revisions. Compatibility between generations is limited: CPU boards, memory modules, and display assemblies are not interchangeable across major hardware revisions. Plants operating mixed fleets of Panel PC 870 variants must maintain separate spare pools for each hardware generation. As of 2026, the entire SIMATIC Panel PC 870 series has reached end-of-life (EOL) status under Siemens' product lifecycle policy. Siemens recommends migration to the SIMATIC IPC477E or IPC677E platforms; however, the installed base scale means that long-term maintenance support for 870-series hardware remains commercially active through specialist distributors.

SIMATIC Panel PC 870 Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented production range of the SIMATIC Panel PC 870 series, classified by display size, processor generation, and interface configuration.

6AV7870-0HE21-1AA0: Panel PC 870, 15" XGA touch, Celeron M, 512MB RAM, WinXP Embedded, 1x PCI slot.
6AV7870-0HE30-1AA0: Panel PC 870, 15" XGA touch, Celeron D 352, 512MB DDR2, WinXP Embedded, 2x PCI.
6AV7870-0HE30-1AC0: Panel PC 870, 15" XGA touch, Celeron D 352, 1GB DDR2, WinXP Embedded, 2x PCI, extended temp.
6AV7870-0HE30-1AB0: Panel PC 870, 15" XGA touch, Celeron D 352, 512MB DDR2, no OS, 2x PCI.
6AV7870-0HA20-1AA0: Panel PC 870, 15" XGA, Pentium 4, 256MB SDRAM, Win 2000 Pro, 1x ISA + 2x PCI.
6AV7870-0HA20-1AB0: Panel PC 870, 15" XGA, Pentium 4, 512MB SDRAM, no OS, 1x ISA + 2x PCI.
6AV7870-0HB20-1AA0: Panel PC 870, 15" XGA touch, Pentium 4, 256MB SDRAM, WinXP Embedded, 2x PCI.
6AV7870-0HB20-1AB0: Panel PC 870, 15" XGA touch, Pentium 4, 512MB SDRAM, no OS, 2x PCI.
6AV7872-0BE20-1AA0: Panel PC 870, 17" SXGA touch, Celeron D 352, 512MB DDR2, WinXP Embedded, 2x PCI.
6AV7872-0BE20-1AB0: Panel PC 870, 17" SXGA touch, Celeron D 352, 512MB DDR2, no OS, 2x PCI.
6AV7872-0BE30-1AA0: Panel PC 870, 17" SXGA touch, Core 2 Duo E6400, 1GB DDR2, WinXP Embedded, 2x PCI.
6AV7872-0BE30-1AC0: Panel PC 870, 17" SXGA touch, Core 2 Duo E6400, 2GB DDR2, WinXP Embedded, extended temp.
6AV7874-0BE20-1AA0: Panel PC 870, 19" SXGA touch, Celeron D 352, 512MB DDR2, WinXP Embedded, 2x PCI.
6AV7874-0BE20-1AB0: Panel PC 870, 19" SXGA touch, Celeron D 352, 512MB DDR2, no OS, 2x PCI.
6AV7874-0BE30-1AA0: Panel PC 870, 19" SXGA touch, Core 2 Duo E6400, 1GB DDR2, WinXP Embedded, 2x PCI.
6AV7874-0BE30-1AC0: Panel PC 870, 19" SXGA touch, Core 2 Duo E6400, 2GB DDR2, WinXP Embedded, extended temp.
6AV7870-0HE21-1AC0: Panel PC 870, 15" XGA touch, Celeron M, 1GB RAM, WinXP Embedded, extended temp rating.

Sourcing Hard-to-Find & Obsolete SIMATIC Panel PC 870 Parts

The SIMATIC Panel PC 870 series has reached Siemens' official end-of-repair (EOR) milestone, meaning OEM repair and spare part supply through standard Siemens channels is no longer available. For plant operators committed to maintaining existing 870-series installations — whether due to capital expenditure constraints, regulatory freeze requirements, or DCS software compatibility locks — DriveKNMS provides structured lifecycle extension support.

DriveKNMS reviews sourcing options for discontinued components through RFQ handling before quotation.

Quality Control for the SIMATIC Panel PC 870 Range

The SIMATIC Panel PC 870 presents specific quality verification challenges due to its integrated architecture: the display assembly, CPU board, power supply, and I/O backplane are interdependent subsystems that must be tested as a complete unit rather than in isolation.

DriveKNMS applies the following verification protocol to all Panel PC 870 units: full power-on cycle with BIOS POST verification; display panel inspection for backlight uniformity, dead pixel mapping, and touch calibration accuracy; CPU thermal performance test under sustained load to verify heatsink integrity and thermal compound condition; PCI slot continuity and bus signal integrity check; HDD/SSD interface verification including read/write cycle testing; and OS boot verification where applicable. Units with Windows XP Embedded installations are tested against known SIMATIC WinCC and STEP 7 runtime compatibility matrices. All units are assigned a condition grade (A: fully functional, B: functional with cosmetic defects, C: for parts only) prior to dispatch documentation.