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Function Modules
S5-100U
The CP 521 BASIC is a powerful peripheral module that can be used with the SIMATIC systems
S5-90U, S5-95U, and the S5-100U. It has its own central processor (cannot be used with the CPU
100, version 8MA01).
A separate manual for this module is available. The order number is 6ES5 521-8MB21.
A brief overview of the functions of this module follows.
Function
This module comes with a special COM software package that is required for generating and storing
BASIC programs (on a floppy disk or an EPROM submodule).
Since the CP 521 includes a basic interpreter, you can create and run BASIC programs that ex-
change data with a CPU and a connected peripheral device. Use a programmer or a PC terminal
and the COM software to program the BASIC interpreter.
You can store the BASIC programs in the module's own battery backed-up RAM or on a plug-in
memory submodule.
Connect programmers or PC terminals to the CP 521 via a serial interface. You can choose (by
setting parameters) between a passive TTY current-loop interface or a RS-232 C V.24 interface to
connect a programmer or terminal. Connect a printer to the unidirectional V.24 interface of the
module to print listings or messages.
Change parameter settings for the peripheral interface by using a BASIC command or by using the
BASIC program.
The CP 521 has an integral real-time clock that can be backed up by a battery. You can use the
clock data in unidirectional data traffic to log process statuses or process malfunctions.
Installation
1. Install the communications module on the bus module like any other I/O module (see chapter 3).
2. Plug the module only into slots 0 to 7.
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The module has no connection to the terminal block.
3. Connect the printer to the module via a 25-pin sub-D female connector.
Addressing
The module is addressed like a 4-channel analog module.
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EWA 4NEB 812 6120-02
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