Basic Knowledge; Function Principle Of Identification Systems - Balluff BIS L-409 Series Quick Manual

BIS L-409 IO-Link Device
Processor
4

Basic knowledge

4.1 Function
principle of
Identification
Systems
12
The BIS L-09-... Identification System is a non-contact read-only system. The compact proces-
sor consists of processing circuitry with a fixed read head.
The system may be used to read information which has been permanently programmed into the
data carrier and to send current status messages to the controller.
The main components of the BIS L-09-... Identification System are:
– Processor,
– read head,
– data carriers.
Data transmission to the controlling system is accomplished using an IO-Link Master.
Data carrier BIS L-2...
Fig. 8: Schematic representation of an identification system
The data carrier is an autonomous unit which is supplied with power by the read head. The read
head continuously sends a carrier signal which is picked up by the data carrier from within a
certain distance. As soon as the data carrier is powered up by the carrier signal, a static read
operation takes place.
The processor manages the data transfer between read head and data carrier, serves as a buffer
storage device, and sends the data to the host controller.
The data are passed to the IO-Link Master using IO-Link protocol, and the Master then passes
them to the controlling system.
Host systems may be the following:
– A control computer (e.g. industrial PC),
– a PLC.
The main areas of application are:
– In production for controlling material flow (e.g. in model-specific processes), in workpiece
transport with conveying systems, for acquiring safety-relevant data.
– warehousing for monitoring material movement,
– transportation, and
– conveying technology.
Connection to
A
IO-Link Master