4
FUNCTIONS
4.6 Redundant-CPU-Compatible Function
4.6.2 System switching request to control system CPU
4
- 61
1
O
V
ER
VI
E
W
2
SYST
EM
CO
NF
IG
URA
T
IO
N
3
SPECI
F
IC
A
T
IO
N
S
4
F
UNCT
IONS
5
PREP
ARA
T
IO
N AND
SET
UP
6
P
A
RAM
E
T
E
R
SET
TI
NG
7
PRO
C
ESSI
NG
T
IM
E
8
PRO
G
R
AM
M
ING
4.6.2
System switching request to control system CPU
Once the CC-Link IE controller network module on the same base as the control system
CPU detects a data link error, it issues a system switching request to the control system
CPU.
Depending on the operation status (power OFF, stop error, etc.) of the standby system,
however, system switching may not be executed.
For details, refer to the following manual.
QnPRHCPU User's Manual (Redundant System)
Figure 4.68 System switching request to the control system CPU
Control
station No.3
Disconnected
station No.1
Normal
station No.2
Normal
station No.4
CC-Link IE controller network
Control
system
Control
system
Standby
system
Standby
system
Tracking cable
Communication
error
Control
station No.3
Disconnected
station No.1
Normal
station No.2
Normal
station No.4
CC-Link IE controller network
Tracking cable
Communication
error
System switching
request
System switched
Содержание QJ71GP21-SX
Страница 1: ......
Страница 2: ......
Страница 644: ...App 94 Appendix 6 External Dimensions Appendix 6 2 QJ71GP21S SX APPENDICES Memo ...
Страница 649: ......
Страница 650: ......