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11
6 IO-Link communication
6.1 Transmission
Characteristics
BIC 1BO-IT1A5-Q40KFU-SM4A4A,
BIC 2BO-IT1A5-Q40KFU-SM4A5A
Transmission rate
COM2 (38.4 kBaud), COM3 (230.4 kBaud)
Min cycle time
2.8 ms
Process data cycle
2.8 ms
SIO mode
no
Type of master port
A
Process data in
0…32 bytes
Process data out
0…32 bytes
IO-Link
Communication
The BIC system transmits the IO-Link version 1.1 protocol (all IO-Link input and output data
as well as diagnostic data), regardless of the length of the process data.
The IO-Link protocol is transmitted without any restrictions so the BIC system parameters
do not need adjusting. Only the device connected to the BIC system needs to be
incorporated in the controller.
This means there is no IODD for the BIC Q40 bidirectional.
Note
The BIC system can only be operated using Balluff IO-Link masters. Using IO-Link
masters produced by other manufacturers can lead to disruptions in
communication
.
Transparent PIN2
Pin 2 on the Base and Remote is transparent and transmits the signal state
"High-active" bidirectional from the IO-Link port on the master to the IO-Link device and the
reverse. For every status change the direction is redetermined from the side which first
generates a High level. This is then transmitted to the corresponding other side.
6.2 Connection Time
The time needed to establish the connection of base and remote is affected by many
different variables. Start-up speed and angle play just as much of a role as the IO-Link
device connected to the Remote and the IO-Link parameters set within it. Also the type of
IO-Link master used and its parameter setting affect the connection time. These variables
are all application-specific and therefore cannot be generalized.
The measurements performed by Balluff for determining the connection time were
performed using a Balluff EtherNet-IP master in combination with the Balluff IO-Link device
"BNI IOL-302-002-K006“. The distance from base to remote was 3 mm without axis and
angular offset. In total, 100,000 connection cycles comprising a variety of directions and
speeds were evaluated.
Base (order code)
typical connection times in seconds
BIC007F
0.9
Note
The typical connection time given here corresponds to the arithmetic mean of
100,000 connection times.
