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Topic Details for Communications

• Server Communications Configuration
• Client Communications Configuration
• Generic Client Protocols
• Communications Faults
• Communications Monitoring and Trouble Shooting
• Expanded Register Map
• Modbus/TCP Server and Client Protocol
• MB-REST Web Service Protocol
• HMI Protocol
• Generic Clients
• Generic Client Framework
• Generic Client User Protocols
• Modbus/TCP Basics

Help - HMI Protocol

Overview:

The HMI protocol is intended to support a web based HMI system. It supports:

• Tag based data table access.
• Automatic data conversion and scaling.
• Events.
• Alarms.

The HMI protocol is based on JSON. While it is primarily intended for HMI systems, it can also be used as a general purpose web service for other applications such as enterprise integration.

The protocol itself is not described in detail here. Please consult the help pages for the HMI system for more details.

Help - HMI Protocol