# ISA-100.11a-2011

Protocols · `ISA-100.11a-2011` · verification: source checked

ISA-100.11a-2011 is a standard for secure, reliable wireless communication in industrial automation, covering non-critical to critical control applications. It addresses monitoring, supervisory control, and open-loop and closed-loop control systems. The document lists low-data-rate wireless communication, system management and gateway specifications, security and interference robustness, and support for fixed, portable and mobile devices.

## Specification

| Property | Value |
|---|---|
| Transports | other |
| Architecture | master slave |
| Encoding | binary |
| Standard body | ISA |
| Standard ref | ISA-100.11a-2011 |

## Connected

- Related: [OPC UA](https://machineschema.com/protocol/opc-ua.md)

## Safety

- Supports a wide range of applications, including safety.
- ISA100 Wireless certification assures interoperability between certified products, regardless of vendor.

## Study notes

- ISA100 Wireless is described as a standard-based (IEC 62734) wireless infrastructure technology.
- The standard supports tunneling of any protocol and includes native IPv6.
- An OPC UA information model is standardized for ISA100 Wireless field devices, access points and networks.
- Over-the-air provisioning and configuration of field devices is standardized via Bluetooth LE.
- Key focus areas include low-data-rate wireless communication, system management and gateway specifications, and support for fixed, portable and mobile devices.
- The ISA-100 committee develops standards and technical reports for field-level wireless systems in automation and control.

## Sources

1. [ISA100 Wireless Compliance Institute](https://isa100wci.org/) (accessed 2026-10-25)
2. [ISA-100 Series of Standards](https://www.isa.org/standards-and-publications/isa-standards/isa-100-standards) (accessed 2026-10-25)

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JSON: https://machineschema.com/protocol/isa100-11a.json  
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