16
PRECAUTIONS FOR USE OF AnS SERIES MODULE
16.1 Precautions for Use of AnS Series Module
16 - 2
9
UTILITY OPERATION
10
FUNCTIONS AND
PROGRAMMING
11
OVERVIEW OF
MULTIPLE CPU
SYSTEM
12
MULTIPLE CPU
SYSTEM
CONFIGURATION
13
MULTIPLE CPU
SYSTEM
CONCEPT
14
COMMUNICATIONS
BETWEEN CPU
MODULES
15
PARAMETERS
ADDED FOR
MULTIPLE CPU
16
PRECAUTIONS FOR
USE OF AnS SERIES
MODULE
(2) Control CPU setting
The AnS series I/O modules or special function modules can be controlled by only
one of High Performance model QCPUs No.1 to No.4 when configuring a multiple
CPU system.
The C Controller module or Motion CPU cannot be set to a control CPU.
If a C Controller module is set to a control CPU, an intelligent function module assign-
ment error (error code: 2120, SP.UNIT LAY ERR.) will occur.
(Example) When CPU No.2 is set as a control CPU
Control CPU of all slots for AnS series I/O modules and special function
modules is set to CPU No.2.
The multiple CPU system will not start up if any of the AnS series I/O
modules and intelligent function modules has another control CPU setting.
The control CPU setting shown in the illustration represents the following:
CPU module 1 to 4 : CPU number
(AnS) module 1 to 4 : Control CPU's CPU number
Figure 16.1 Control CPU setting example for AnS series module
Control CPU can be set for each slot.
Control CPU setting
QA1S68B
Q312B
QA1S68B
Set the same CPU module
as a control CPU.
module
CPU
module
Power
supply
module
Power
supply
module
CPU
module
CPU
module
CPU
module module module module module module module module module
module
AnS
module
AnS
module
AnS
module
AnS
module
AnS
module
Power
supply
module
AnS
module
AnS
module
AnS
module
AnS
module
AnS
module
AnS
module
AnS
module
AnS
Slot number
Control CPU setting
Slot number
Control CPU setting
Slot number
CPU 0 1 2 3 4 5 6
12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27
7 8 9 10 11
1
2 3
44 1
1
2 2
2 2 2 22 2 2 2 2
2 2 2 22 2
3
4 4 4 4
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