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12.3 Precautions for System Configuration
12
MULTIPLE CPU SYSTEM CONFIGURATION
(b) When CPU No. 1 is High Performance model QCPU
1) Error check method
If an error has occurred, check the error details in the PLC diagnostics of GX
Developer Version 6 or later.
2) Corrective action for error occurrence
If the error indicated in Table12.12 is displayed, replace the High Performance
model QCPU of function version A with the High Performance model QCPU of
function version B.
* 1 When the multiple CPU system is powered on or when CPU No. 1 High Performance model QCPU
is reset, either of the following errors may occur, besides a multi CPU error, MULTI EXE. ERROR.
• Control bus error (Error code: 1413, 1414, CONTOL-BUS. ERR.)
• Multi CPU error (Error code: 7000, 7002, MULTI CPU DOWN)
Figure 12.10 Multiple CPU system configuration example
Table12.12 Operation for use of C Controller module incompatible programmable controller CPU
Hardware version of CPU No. 1
Operation status of each CPU No.
Operation status of CPU No. 1
Operation status of CPU No. 2 to No. 4
C Controller module
Function version A
UNIT VERIFY ERROR
(Error code: 2000)
MULTI EXE.ERROR
*1
(Error code: 7010)
Function version B No error No error
GX Developer
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