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Glossary
C7 CPU
The C7 CPU is a central processing unit of the C7 range, complete with
processor, arithmetic unit, memory, operating system and interfaces for
programming devices. The C7 CPU is independent of the
C7 CPU has its own MPI address and is connected to the C7 OP via the MPI
(multipoint interface).
C7 I/O
The C7 I/O (
the programmable controller. There are digital input and outputs as well as
analog inputs and outputs. The integral universal inputs have special
functions in the C7 (interrupt/counter inputs).
C7 OP
The C7 OP handles the OP functions of the C7 control system. It is
independent of the
C7 CPU enters the STOP mode. The C7 OP has its own MPI address and is
connected to the C7 CPU via this interface. It is via the MPI that the C7 OP
is connected to a configuring computer (programming device/PC).
CP
Communications
Communications processors are intelligent modules with their own processor.
Processor (CP)
They form an important group within the components of a programmable
controller. A distinction can be made between various types of
communications processors according to their tasks. For example, CPs for
messages and logging, for point-to-point connection, for operator interfacing
(COROS), for bus connections (SINEC), for diagnostics and mass storage
applications.
Complete Restart
When a CPU starts up (for example, when the mode selector is moved from
STOP to RUN or when power is turned on), before cyclic program processing
starts (OB1), the organization block OB100 (complete restart) is processed
first. In a complete restart, the process-image input table is read in and the
STEP 7 user program processed starting with the first statement in OB1.
Configuration
The assignment of modules to racks/slots and addresses (for example, signal
modules).
Configuration
The configuration memory is a flash memory integrated in the C7 OP. It is
Memory
used for storing the configuration data.
Cyclic Interrupt
A cyclic interrupt is generated periodically by the C7 CPU according to a
time grid which can be assigned parameters. It triggers execution of the
relevant organization block.
Glossary-2
signal module) forms the interface between the process and
C7 CPU and continues to operate, for example, if the
Communications Processor
C7 OP. The
C7-626 / C7-626 DP Control Systems
C79000-G7076-C626-01
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