Chapter 2 Hardware description
CPU ADAM 821x
2-6
ADAM 8000 Manual CPU 821x – Rev 1.1
A CPU is an intelligent module. Your controlling programs are executed
here. You are able to select one of three CPUs, depending on the
performance required from your system. The higher the performance of the
CPU, the more user memory is available.
The CPUs 821x are intended for small to medium applications and have an
integrated 24V power supply. The CPUs contain a standard processor with
internal program memory for the storage of user-programs. In addition,
every CPU 821x is equipped with a socket for a memory module, which is
located on the front.
Every CPU has an MPI-interface and is instruction set compatible with the
Siemens STEP
®
7. The CPU series 214...216 have similar performance as
the Siemens STEP
®
7 CPU series.
This series of CPUs provides access to the peripheral modules of the
System 82xx. You may query sensors and control actuators by means of
standardized commands and programs. The unit can address a maximum
of 32 modules. You may parameterize the CPU via the integrated MPI-
interface.
The remainder of this description refers to all CPUs of the CPU 821x
family, since the CPUs 8214, 8215 and 8216 are functionally identical
and their only difference is the memory size.
•
Instruction set compatible to Siemens STEP7
®
•
Configuration by means of the Siemens STEP7
®
manager
•
Integrated 24V power supply
•
Total address range: 1024Byte inputs, 1024Byte outputs (128Byte
process image each)
•
32...128kByte of work memory
•
40…192kByte of load memory
•
Battery backed clock
•
Memory-card socket
•
MPI-interface
•
Integrated V-Bus controller for controlling System 82xx peripherals
•
User programs can be saved to the external memory card (MMC)
•
128 timer
•
64 counter
•
256Byte of bit memory
General
Properties
