Grid measurement and protection as an integral part of a modular PLC system can be seen from two perspectives:

• Fully programmable and extensible measurement and protection solution:

API for sampling and all calculated quantities in connection with the open programmable CPU system permits flexible adaptation to multiple measuring tasks.

• Operational control (PLC) extended with grid measurement and protection:

Unifying the control system with grid measurement and protection leads to outstanding reaction time and is also cost efficient due to the reduction of unnecessary components and minimal introduction and training effort.