App - 5 App - 5
MELSEC
APPENDIX
2) Examples of access by route switching
The following shows examples of route switching during access to the
control system.
<When system switching occurs at communication error>
Control system
MELSECNET/H
Control system
Standby system
Tracking cable
Tracking cable
MELSECNET/H
Personal computer
(MELSECNET/H board)
Connection to control system
Standby system
error
Personal computer
(MELSECNET/H board)
Connection to control system
communication
Fig. 1 Route switching example 1
<When standby system fault occurs>
MELSECNET/H
MELSECNET/H
Control system
Control system
Standby system
Tracking cable
Tracking cable
Personal computer
(MELSECNET/H board)
Connection to control system
Standby system
Personal computer
(MELSECNET/H board)
Connection to control system
error
Standby system
Fig. 2 Route switching example 2
Summary of Contents for Q80BD-J71BR11
Page 2: ......
Page 24: ...A 22 A 22 MEMO ...
Page 50: ...4 6 4 6 MELSEC 4 FUNCTION MEMO ...
Page 92: ...6 36 6 36 MELSEC 6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION MEMO ...
Page 132: ...10 2 10 2 MELSEC 10 MELSEC DATA LINK LIBRARY MEMO 10 ...
Page 138: ...11 6 11 6 MELSEC 11 PROGRAMMING MEMO ...
Page 164: ...12 26 12 26 MELSEC 12 APPLICATION FUNCTIONS MEMO ...
Page 166: ...13 2 13 2 MELSEC 13 ERROR CODE MEMO 13 ...
Page 223: ......