Baumer BA UNxK09 IO - Manual (Page 6)

en_BA_UNXK 09-IO-Link.doc 6/18 Baumer Electric AG
24.04.2012/haa Frauenfeld, Switzerland
4.1.1.2 Significance of the Status Information
Bit 0: Alarm
The alarm bit indicates whether an object lies within the measurement value range.
Bit0 = 0 → An object lies within the specified measuring range.
Bit0 = 1 → There is no object within the specified measuring range.
Bit 1: Switch bit
In the IO Link communication mode, the switch bit performs the function of a switching output.
Bit1 = 0 → There is no object within the switching range.
Bit1 = 1 → An object lies within the switching range.
Bit 2: Quality
This bit provides information about the quality of the sonic echo reflected by the object.
Bit2 = 0 → The amount of reflected sonic is OK.
Bit2 = 1 → The amount of reflected sonic is critical.
Bit3: Not used
4.2 Parameters and Commands
Parameters and commands are either written to the device or read from it using SPDU (Service Protocol
Data Unit) indices. The read and write function is provided by the IO Link master. The user can write a value
to an index, or can have a value read from it.
4.2.1 Product Information
Some parameters contain product information such as the manufacturer’s name, the product name and
number, together with a user-specific sensor designation (refer to Table 6, Table of General Information
SPDUs).
4.2.2 Parameters
For a description of parameters, refer to Table 6.2, Table of Parameter SPDUs.
4.2.3 Commands
Commands are written to SPDU Index 0x02 (system commands). Refer to Table 6.3 Table of System
Commands.
4.2.4 Saving Modifications
Modification of parameters either by direct overwriting or by a command don’t have to be saved explicitly.
They remain automatically valid also after a restart.