To build a redundant pair around an existing WinCC V7.0 SP1 HF4 station, license the second node for an equivalent WinCC Runtime/server capacity and add the WinCC Redundancy option. Before deployment, resolve the supplied evidence's conflicting operating-system and patch-level claims against the Siemens compatibility documentation for the exact WinCC build.
Define the Redundant Server Licenses
Each redundancy node needs its own qualifying WinCC Runtime/server entitlement. For the new PC, select a Runtime license equivalent in type and capacity to the license installed on the existing PC, then obtain the WinCC Redundancy license.
The evidence describes the base entitlement both as an additional license matching the existing license and as “two server licenses.” Therefore, first confirm whether the existing PC already has a qualifying server license; do not automatically purchase a replacement for a valid entitlement.
| Node or function | License decision |
|---|---|
| Existing server | Verify that its current WinCC Runtime/server license qualifies for redundant operation. |
| New server | Purchase an equivalent WinCC Runtime/server license with capacity matching the existing node. |
| Redundancy function | Purchase the WinCC Redundancy option and confirm how it must be assigned across the pair. |
Align the WinCC Version
The existing station runs WinCC V7.0 SP1 HF4. One supplied compatibility statement limits that build to Windows XP SP3 or Windows Server 2003, while another recommends updating the old station and installing WinCC V7.0 SP3 Update 1 on the new PC. The evidence also states that moving within V7.0 from SP1 to SP3 does not require an upgrade license, but this entitlement must be verified against the actual license certificate.
Do not assume that a newly purchased package will match V7.0 SP1 HF4: the package may contain the service pack and hotfix current when ordered. Establish one approved WinCC build for both nodes before commissioning redundancy.
Resolve the Operating-System Combination
The supplied information names Windows XP SP3, Windows 7 Professional or Ultimate, Windows Server 2003, and Windows Server 2008 as possible platforms. It separately associates newer WinCC V7.0 service packs with Windows 7 and Windows Server 2008 R2, and claims Windows 7 Ultimate SP1 operation. These statements do not establish one definitive compatibility matrix for every WinCC patch and redundancy configuration.
A mixed pair using Windows XP SP3 on the existing server and Windows Server 2008 or Windows 7 Ultimate on the new server is described as workable, but identical operating systems are preferred. Treat that mixed-OS claim as requiring confirmation rather than as an approved design rule.
Commission the Pair
- Inventory the existing WinCC Runtime/server license, licensed capacity, WinCC V7.0 SP1 HF4 build, and Windows XP SP3 installation.
- Select an equivalent Runtime/server entitlement for the new node and obtain the WinCC Redundancy option.
- Choose a common WinCC service-pack and update level; verify whether the existing V7.0 entitlement covers the selected level.
- Check the exact WinCC build, operating-system edition, service pack, and redundancy role against the applicable Siemens compatibility documentation.
- After installation, verify that both nodes recognize their licenses, establish the redundancy connection, and perform the required failover and recovery tests before production use.
FAQ
What licenses do I need for two WinCC redundant servers?
Each node needs a qualifying WinCC Runtime/server license, and the pair needs the WinCC Redundancy option. Match the new node's Runtime license type and capacity to the existing node, then verify whether the existing server license already satisfies its entitlement.
Can WinCC V7.0 SP1 HF4 redundancy run on Windows 7?
The supplied evidence associates V7.0 SP1 HF4 with Windows XP SP3 or Windows Server 2003, while Windows 7 support is associated with later V7.0 service packs. Confirm the exact WinCC build and Windows 7 edition in Siemens compatibility documentation before installation.
Can one WinCC redundancy server use XP and the other Windows 7?
A mixed pair with Windows XP SP3 and Windows 7 Ultimate or Windows Server 2008 is described as workable, but identical operating systems are preferred. Verify the specific mixed-OS combination for the selected WinCC service pack before commissioning.