2
SYSTEM CONFIGURATION
2.1 System Configuration
2 - 11
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
TRACKING CABLE
4
PROCEDURE FOR
STARTING UP A
REDUNDANT SYSTEM
5
REDUNDANT SYSTEM
FUNCTIONS
6
REDUNDANT SYSTEM
NETWORKS
7
PROGRAMMING
CAUTIONS
8
TROUBLESHOOTING
(6) Communications through the PROFIBUS-DP
(a) I/O data exchange
The PROFIBUS-DP master module exchanges I/O data with slave stations
connected to the PROFIBUS-DP.
(b) Communication method and operation at system switching of the
PROFIBUS-DP
For the method of communications with slave stations connected to the
PROFIBUS-DP and operation overview at system switching, refer to
Section 6.2.6.
For the method of communications with slave stations connected to the
PROFIBUS-DP and operation details at system switching, refer to the following
manual.
PROFIBUS-DP Master Module User's Manual
Diagram 2.8 Connection of Redundant System to PROFIBUS-DP
Tracking cable
DP-Slave
PROFIBUS-DP
DP-Slave
DP-Slave
DP-Slave
System A - Control System
System B - Standby System
Power supply module
Control Master Standby Master
QnPRHCPU
QJ71LP21
QJ61BT11N
QJ71E71
QJ71PB92V
Power supply module
QnPRHCPU
QJ71LP21
QJ61BT11N
QJ71E71
QJ71PB92V
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