Still Part of STEP 7
Siemens STEP 7 documentation continues to include S7-300/400 alongside newer controller families, reflecting the role of these platforms in existing automation architectures.
Legacy Control Systems
Engineering, troubleshooting and modernization support for Siemens S7-400 industrial control systems.
Hive Automation provides Siemens S7-400 PLC programming, troubleshooting, modification, maintenance and migration support for existing industrial automation systems.

Product Overview
The Siemens S7-400 remains relevant in many existing industrial plants where reliable PLC control systems have been operating for years.
Hive Automation supports customers who need to maintain, modify, troubleshoot or modernize S7-400-based automation systems.
Siemens STEP 7 documentation continues to include S7-300/400 alongside newer controller families, reflecting the role of these platforms in existing automation architectures.
When modernization is required, an S7-400 system can be migrated to a newer Siemens platform such as S7-1500.
Technical Capabilities
Modernization
Legacy automation systems can become difficult to maintain because of aging hardware, spare-part availability and outdated engineering environments.
Hive Automation can assess your existing S7-400 system and help determine whether continued support, partial modernization or migration to a newer Siemens platform such as S7-1500 is appropriate.
A migration should be based on the existing PLC program, I/O architecture, communication network, HMI/SCADA system and process requirements.
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