5
REDUNDANT SYSTEM FUNCTIONS
5.9 Network Module Redundant Group Settings
5 - 126
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
(2) Redundant Group Settings
Redundant group settings are made in the network parameter group settings using
GX Developer.
Set "Group" or leave it block in the network module set to the lower I/O No.
(3) Confirming a System Switching Request by a Network Module
If a network module requests a system switching, the SD1590 bit for the module No.
will change to "1".
*1
* 1 : The module No. corresponds to the slot number on the main base unit.
•Module No. 0...Slot 0
•Module No. 1...Slot 1
•Module No. 2...Slot 2
•
•
•
•Module No. 11...Slot 11
(4) When a non-redundant network module is set in the redundant group
settings
If redundant group settings are made for a network module that does not support
redundant systems, a stop error, "PARAMETER ERROR (error code: 3000)" will
occur.
In this case, check the network parameter group settings.
Diagram 5.94 Network module redundant group setting Screen
Diagram 5.95 Network Module That Issued System Switching Request
When module No. 3 is
set in "Group", module
No. 3 becomes grouped
with module No.4.
b1 b0b15 b11to to
to
0 0/10/1 0
Module 0 : CPU module is invalid as it is 2-slot module
Module 1: Module on the right side of CPU module
Module 11: Module at right most end of 12-slot base (Q312B)
SD1590