Compatibility and Configuration of Redundant Terminal Bus PCIe Adapter 6ES7652-0XX01-1XF1 in PCS 7 v8.0 SP2

The dual-port PCI-Express network adapter with order number 6ES7652-0XX01-1XF1 is officially certified and compatible with SIMATIC PCS 7 v8.0 SP2. It is listed in Chapter 10.4 of the 'SIMATIC Process Control System PCS 7 Released Modules (V8.0 SP2)' manual under approved terminal bus network adapters. The adapter uses Intel Advanced Network Services (Intel ANS) teaming drivers in Adapter Fault Tolerance (AFT) mode to provide redundant physical Ethernet connections to the PCS 7 terminal bus without dropping WinCC runtime communication.

Hardware Overview of the Redundant Terminal Bus Adapter 6ES7652-0XX01-1XF1

In high-availability SIMATIC PCS 7 architectures, terminal bus communication between Engineering Stations, redundant OS Servers (6ES7652-0XX08-1XB0), and OS Clients must be resilient against cable cuts and network switch failures.

To achieve physical link redundancy, Siemens specifies the redundant terminal bus network adapter 6ES7652-0XX01-1XF1:
* Form Factor: Low-profile / Standard PCI-Express (PCIe x4) host interface.
* Ports: Dual RJ45 Gigabit Ethernet ports (10/100/1000 Mbps).
* Controller Hardware: High-performance Intel Gigabit Ethernet controller (such as Intel PRO/1000 or I350-T2).
* Application Scope: Designed for installation inside SIMATIC Industrial PCs (IPC547D, IPC647D, IPC847D) to eliminate single points of failure on the plant terminal bus.

Official Compatibility and Release Verification for PCS 7 v8.0 SP2

The compatibility of network components in PCS 7 is governed by strict system testing:

Specification CriteriaStatus in SIMATIC PCS 7 v8.0 SP2Relevant DocumentationOrder Number (MLFB)6ES7652-0XX01-1XF1Certified in Siemens Industry Mall / CatalogCatalog ClassificationTerminal Bus Network AdapterChapter 10.4 Network AdaptersSupported Operating SystemsWindows 7 SP1 64-bit / Windows Server 2008 R2 64-bitPCS 7 Released Modules (V8.0 SP2)Teaming SoftwareIntel Advanced Network Services (Intel ANS)Intel PROSet Teaming UtilityRedundancy ModeAdapter Fault Tolerance (AFT) / Switch Fault Tolerance (SFT)IEEE 802.3ad / Static Teaming

Table 1: Technical and compatibility parameters for adapter 6ES7652-0XX01-1XF1.

Network Teaming Architecture: Adapter Fault Tolerance (AFT)

Rather than managing two separate IP subnets on the terminal bus, adapter 6ES7652-0XX01-1XF1 combines both physical ports into a single virtual network adapter using Intel ANS teaming:
* Adapter Fault Tolerance (AFT): One port is designated as the primary active link; the second port operates as a hot standby. Both ports connect to separate, redundant SCALANCE switches (6GK5208-0BA00-2AA3).
* Failover Mechanism: If the primary cable is unplugged or the primary switch loses power, the Intel driver automatically transfers traffic to the standby port in under 50 milliseconds without dropping TCP connections or interrupting WinCC runtime communication.
* Virtual MAC/IP Address: Windows and SIMATIC software bind to the unified Team virtual adapter (e.g., TEAM: TerminalBus), ensuring a single static IP address represents the station.

Configuring Redundant Terminal Bus Connections in SIMATIC Shell

To commission the redundant adapter in a PCS 7 v8.0 SP2 station:

Physical Installation and Driver Setup:
* Insert the PCIe card into a vacant PCIe slot on the IPC.
* Boot Windows and install the certified Intel PROSet driver package included on the PCS 7 installation media.
Create the Network Team:
* In Windows Device Manager, open the properties of the first Intel network adapter.
* Switch to the Teaming tab and select Team this adapter with other adapters.
* Select the second port of 6ES7652-0XX01-1XF1.
* Select team type: Adapter Fault Tolerance (AFT).
* Assign a meaningful team name: Team_Terminal_Bus.
Assign Static IP Address:
* Open Network Connections in Windows Control Panel.
* Locate the newly created virtual adapter Team_Terminal_Bus.
* Configure the static IP address, subnet mask, and DNS according to plant terminal bus specifications.
Bind SIMATIC Shell to the Team Adapter:
* Open Windows Explorer and right-click SIMATIC Shell > Settings.
* In the network adapter dropdown, select the virtual adapter Team_Terminal_Bus.
* Enable encrypted communication if configured for the plant.
* Click OK and restart the station to finalize terminal bus binding.

Verification

To confirm proper redundancy and failover operation:

In Windows Device Manager, verify that Team_Terminal_Bus shows status Operational and lists both physical ports as members.
Open SIMATIC Shell: confirm that all remote OS servers and clients appear active in the tree.
Conduct a physical pull test: while WinCC Runtime is communicating, physically disconnect the Ethernet cable from Port 1.
Observe the Intel PROSet diagnostic tool: confirm that Port 2 instantly becomes the primary active link.
Verify that WinCC Runtime experiences zero alarm dropouts, process value freezes, or terminal bus disconnection popups.

Limitations and Operational Precautions

In later Windows 10 releases (e.g., Windows 10 Enterprise LTSB/LTSC), Intel ANS teaming is not supported by Microsoft; Windows native NIC teaming or separate routed subnets must be used instead.
Never configure both physical ports with independent IP addresses within the same subnet without teaming; dual un-teamed adapters in the same subnet cause ARP race conditions and broadcast storms.
Ensure both redundant Ethernet switches share a common spanning tree or inter-switch link (ISL) trunk to maintain broadcast domain continuity.

Engineer FAQ

Can 6ES7652-0XX01-1XF1 be used for the Plant Bus (Industrial Ethernet)?

No. The plant bus connecting OS servers to S7-400 controllers requires dedicated CP 1623 (6GK1162-3AA00) or CP 1613 communication processors running Hardnet / Softnet S7 protocol suites. 6ES7652-0XX01-1XF1 is certified exclusively for the terminal bus.

Does Intel AFT teaming require managed switches?

No. Adapter Fault Tolerance (AFT) operates transparently from the server side and does not require switch configuration (such as LACP). However, industrial managed switches (SCALANCE X-200 / X-300) are recommended for plant diagnostics.

What replacement card is recommended if 6ES7652-0XX01-1XF1 is unavailable?

Consult the latest Siemens PCS 7 Released Modules catalog or contact an authorized Siemens distributor for approved dual-port Gigabit PCIe replacement adapters matching your IPC model.