Differences Between Io-Link Specifications V1.0 And V1.1 - Siemens SIMATIC IO-Link system Function Manual

2.7

Differences between IO-Link specifications V1.0 and V1.1

Specification
The technical definition of the IO-Link system is described in a specification of the IO-Link
consortium. The first step was the creation of specification version 1.0. The further
development and added functions of the IO-Link system led to version 1.1.
The main enhancements of version 1.1 are:
• Data backup for device replacement during operation (Backup&Restore)
• Data transmission rate 230.4 kBaud is mandatory for the IO-Link master
Combination of IO-Link devices
Note the following when combining IO-Link devices:
• Only IO-Link devices that comply with V1.0 can be operated on the IO-Link master to V1.0.
• IO-Link devices that comply with V1.0 and V1.1 can be operated on the IO-Link master to
V1.1.
• Data backup and a data transmission rate of 230.4 kBaud of the IO-Link master after V1.1
can only be used when these functions are also supported by the IO-Link device.
IO-Link system
Function Manual, 07/2022, A5E31637677-AC
2.7 Differences between IO-Link specifications V1.0 and V1.1
System overview
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