Special functions of a CPU 41x
3.2 Multicomputing
S7-400 Automation System, CPU Specifications
3-6 Manual, 10/2006, 6ES7498-8AA04-8BA0
Number of I/Os
The number of I/Os of an automation system in multicomputing mode corresponds to the
number of I/Os of the CPU with the most resources. The configuration limits for the specific
CPU or specific DP master must not be exceeded in the individual CPUs.
3.2.3 Multicomputing interrupt
Principle
Using the multicomputing interrupt (OB60), you can synchronize the CPUs involved in
multicomputing to an event. In contrast to the hardware interrupts that are triggered by signal
modules, the multicomputing interrupt can only be output by CPUs. The multicomputing
interrupt is triggered by calling SFC35 "MP_ALM".
For more detailed information, refer to the
System Software for S7-300/400, System and
Standard Functions
.
3.2.4 Configuring and programming multicomputing mode
Reference
For information on the procedure for configuring and programming CPUs and modules, refer
to the
Configuring Hardware and Connections with STEP 7
.
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