Schematic Drawing Of The Inner Construction - Leuze electronic DDLS 200 Technical Description

9.7.1 Schematic drawing of the inner construction

Original bus without optical
data transmission
One arbitration segment
TN1
TN2
Arbitrate data on
segment 1
Data from segment 1
to segment 2
Figure 9.13: Segmentation
• Data from Segment 1 are written in reception buffer CU (10 frames) and optically transmitted
directly from there.
• The transmitted data are received by the DT2 and written in reception buffer OP
800kbit and 128 frames < 800kbit).
• Data in reception buffer OP are sorted by priority or processed according to the FIFO principle
(depending on the operating mode used)
• Data in reception buffer OP are passed to Segment 2 for arbitration.
• The same process also occurs when transmitting data from Segment 2 to Segment 1.
Leuze electronic
TN4
TN3
DT1
Receive buffer OP
Frame
Frame
Frame
Frame
Optical full duplex
transmission
Receive buffer CU
Frame
Frame
Frame
Frame
DDLS 200
Split bus with optical
data transmission DDLS 200
Arbitration segment 1
DT1
TN1
TN2
DT2
Receive buffer CU
Frame
Frame
Frame
Frame
Receive buffer OP
Frame
Frame
Frame
Frame
DeviceNet / CANopen
Arbitration segment 2
DT2
TN3
Data from segment 2
to segment 1
Arbitrate data on
segment 2
(64 frames >
TN4
47