Mitsubishi Electric MELSEC iQ-R16MTCPU - Setting Operation for Multiple CPU System; Setting Operation for CPU Module Stop Error; Multiple CPU Synchronous Startup Setting; Clock Synchronization between Multiple CPU

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1 MULTIPLE CPU SYSTEM
1.2 Setting Operation for Multiple CPU System
1.2 Setting Operation for Multiple CPU System
This section describes all operation settings for Multiple CPU systems. Specify all operation settings for Multiple CPU systems
in the GX Works3 [System Parameter]. Refer to the following for details on all operation settings.
MELSEC iQ-R CPU Module User's Manual (Application)
Setting operation for CPU module stop error
If a moderate or major error occurs at any of the CPUs, set whether to stop or continue operation for all CPUs.
Set the stopping mode for the CPU to be stopped in [System Parameter]  [Multiple CPU Setting]  "Multiple CPU Setting"
 "Operation Mode Setting"  "Stop Setting" in GX Works3.
Multiple CPU synchronous startup setting
Multiple CPU synchronous startup function synchronizes the startups of CPU No.1 to CPU No.4. (It takes about ten seconds
to startup for Motion CPU. After startup, each CPU requires time for initializing.)
Since this function monitors the startup of each CPU module, when other CPU is accessed by a user program, an interlock
program which checks the CPU module startup is unnecessary. With the Multiple CPU synchronous startup function, the
startup is synchronized with the slowest CPU module to startup; therefore, the system startup may be slow.
Multiple CPU synchronous startup function is for accessing each CPU module in a Multiple CPU system
without needing an interlock. This function is not for starting an operation simultaneously among CPU
modules after startup.
Multiple CPU synchronous startup setting
Set "Synchronize" in the Multiple CPU synchronous startup setting of the CPU in [System Parameter]  [Multiple CPU
Setting]  "Multiple CPU Setting"  "Operation Mode Setting"  "Synchronous Startup Setting"
When not performing Multiple CPU synchronous startup (each CPU startup without synchronization), startup of each CPU
module can be confirmed by using special relays SM220 to SM223 (CPU No.1 to 4 READY complete flag).
Clock synchronization between Multiple CPU
Motion CPU clock data is synchronized with the clock of CPU No. 1.
The clock data used for synchronization in a Multiple CPU system can be edited.(Page 113 Clock Function)