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8 PROFINET Communications
8 - 2
NX-series PROFINET Coupler Unit User’s Manual (W623)
8-1 Communication protocols
PROFINET uses Ethernet and TCP, UDP and IP as basis for the communication between the devices.
8-1-1 RT and IRT
The TCP/IP and UDP/IP communication protocols apply a considerable amount of control overhead
which will slow down data transmission speed which is required for PROFINET applications. To
facilitate Real-Time capabilities for data exchange, the PROFINET uses a specific protocol of
Real-Time (RT) Communication. This protocol cancels some of the flow control and addressing in
comparison with the TCP/IP and UDP/IP.
For the prioritized transmission of RT-frames, Real-Time communication uses the VLAN tag as
defined in IEEE 802.1Q.
Содержание PROFINET NX-PNC202
Страница 9: ...7 NX series PROFINET Coupler Unit User s Manual W623 CONTENTS...
Страница 12: ...Manual Structure 10 NX series PROFINET Coupler Unit User s Manual W623...
Страница 32: ...Revision History 30 NX series PROFINET Coupler Unit User s Manual W623...
Страница 34: ...Sections in this Manual 32 NX series PROFINET Coupler Unit User s Manual W623...
Страница 126: ...6 Installation 6 32 NX series PROFINET Coupler Unit User s Manual W623...
Страница 192: ...10 I O Refreshing 10 6 NX series PROFINET Coupler Unit User s Manual W623...
Страница 224: ...11 PROFINET Coupler Unit Functions 11 32 NX series PROFINET Coupler Unit User s Manual W623...
Страница 260: ...12 Troubleshooting 12 36 NX series PROFINET Coupler Unit User s Manual W623...
Страница 268: ...13 Maintenance and Inspection 13 8 NX series PROFINET Coupler Unit User s Manual W623...
Страница 274: ...Appendices A 6 NX series PROFINET Coupler Unit User s Manual W623...
Страница 275: ...I 1 I I NX series PROFINET Coupler Unit User s Manual W623 Index...
Страница 280: ...I 6 NX series PROFINET Coupler Unit User s Manual W623 Index...
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