Chapter 5 Profibus-DP Communication
5-3
5.3.3 Procedure to establish Pnet communication
Master communicates Pnet expansion I/O module based on the downloaded setting information
1)
After writing parameter and checking, I/O data communication starts.
2)
If it fails when processing each step, diagnosis is executed.
3)
Initial sequence operation to establish communication is as follows.
POWER ON
Is DIAG_res received
normally?
Yes
Master transmits DIAG req telegram to slave.
Master transmits Set_Parameter telegram to slave.
Is accurate response
received?
Master transmits Check_Config telegram to slave.
Is accurate response
received?
Is DIAG_res received
normally?
Master transmits DIAG_req telegram to slave.
Does error report occur at
Diag?
DATA Exchg
Yes
Yes
Yes
No
No
No
No
Yes
Содержание XGL-PSEA
Страница 1: ...Programmable Logic Control Pnet Slave I F Module XGL PSRA XGL PSEA XGT Series ...
Страница 13: ...Table of Content 12 ...
Страница 25: ...Chapter 1 Overview 1 12 ...
Страница 31: ...Chapter 2 Product Specification 2 6 ...
Страница 41: ...Chapter 3 System Configuration 3 10 ...
Страница 61: ...Chapter 4 Communication Programming 4 20 ...
Страница 89: ...Chapter 5 Profibus DP Communication 5 28 High speed Link information monitor screen Variable registration ...
Страница 150: ...Appendix A 13 A 2 Dimension XGL PSEA XGL PSEA ...
Страница 151: ...Appendix A 14 ...
Страница 153: ...Warranty and Environment Policy 2 ...