SCADA Controls Warnings and Alarms via Modbus TCP Interface

Modbus is a protocol for field bus systems using the Master/Slave principle. Modbus Slave and Modbus Master communicate with each other, whereas information is exclusively exchanged via (Modbus) registers. A Modbus Master reads the Registers of the Modbus Slave at regular intervals (polling) to be able to act on status changes.

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Intercom and PA/GA

You’ve surely heard of intercom systems and PA/GA systems. But how are they exactly defined? And what are the differences? This article compares both concepts and focuses on the main differences. Intercom Intercom systems are mainly used to support process-related voice communication in industrial environments. You have either a pre-defined subscriber to which you establish […]

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