Systemsoftware
2-4
System- and communication configuring D7-SYS - SIMADYN D
Edition 03.2001
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Connections (I/O) with special functions have the following suffixes:
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the dollar symbol "$" (connecting signals between CPUs),
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the star symbol "*" (symbolic hardware addresses),
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or the exclamation mark "!" (virtual addressing).
HWConfig or CFC automatically enter these suffixes. A function block
name may only appear once on a CPU. The name syntax and rules are
checked when entered.
Hardware modules and function block types are saved in libraries. The
required function blocks can be called-up from the libraries using
HWConfig or the CFC editor.
Several function block libraries can be used for each CPU. The "FBSLIB"
standard function block library is pre-assigned. It has over 200 function
blocks, whose functionality is sufficient for most applications. When
required, additional supplementary libraries can be imported for the
particular CPU. The libraries can be found in the directory
"step7\s7cfc\sdblocks\std (SIMADYN D) or ...\tdc (SIMATIC TDC)".
2.1.2 Configuring the hardware
HWConfig is used to configure the hardware of SIMATIC TDC/SIMADYN
D stations. A SIMATIC TDC/SIMADYN D station consists of a rack with
up to 20/8 CPUs and other hardware modules. When required, several
stations can be coupled with one another. The modules to be configured
can be selected from the modules in the HWConfig hardware catalog.
Racks, CPUs, I/O modules, coupling modules etc. can be selected.
HWConfig defines the system hardware configuration as result of
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the rack used together with the defined bus structure (bus termination,
Daisy Chain),
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the configured hardware modules inserted in the rack as well as
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defining hardware-relevant information such as tasks, synchronization
etc.
2.1.2.1 The first step: Selecting the hardware modules
The following modules are available in the HWConfig hardware catalog:
Hardware
Description
Subracks
Various types depending on the slot number, bus
configuration, cooling etc.
I/O modules
Peripheral modules to input/output process signals
(analog-binary I/O, speed sensing signals etc.)
Expansion modules
Peripheral modules to input/output process signals.
They are used to achieve higher data rates by
bypassing the backplane bus, and are directly
connected to a CPU module.
Libraries
Configuring
SIMADYN D
stations
Short overview of
the hardware