7 faq - frequently asked questions and answers, Faq - frequently asked questions and answers, Busserver s7 – Lenze Drive Server Bus server S7 getting started User Manual

Page 61

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Busserver S7

L

122

Busserver S7 DE/EN 1.0

6.7

FAQ - Frequently asked questions and answers

Question

Answer

Which baud rate is to be set for the MPI interface
module in the PG/PC control?

Depends on the interface module and the PLC.
(Standard: 187.5 kbit/s)

Is it possible to change the block numbers of the Lenze
blocks if they have already been assigned in the

current STEP7 project?

Yes, it is.

Can the bus server S7 only work with the block
numbers known to it?

No, the bus server S7 also works with modified block
numbers.

Can the bus server S7 also find drives, if the PLC is in
STOP mode?

Yes, but the PLC must have been in RUN mode at least
once before.

Can the DriveServer also find drives and parameters if
the PLC is in STOP mode?

No, to find drives and parameters, the PLC must be in
RUN mode.

Which Siemens software is required for the bus server
S7?

Depends on the application. For many applications,
there is no particular Siemens software required.
For further information, please read chapter 2.2.
(

^ 69)

How can I see, if the Siemens communication drivers
have been installed on the PC?

If the Siemens communication drivers have been
installed, the ”Set PG/PC interface” configuration

program is available in the control panel.

How can I see, which version of the Siemens
communication drivers has been installed on the PC?

Open the ”Set PG/PC interface” configuration program
in the control panel. The version is indicated in the title

bar of the program.
If the version is not indicated, go to the Windows

system directory, find the file ”S7EPATDX.CPL” and list

the version properties.

How do I install the Siemens communication drivers?

The Siemens communication drivers are part of the
basic Siemens STEP7 package and are automatically

installed when STEP7 is installed.

Which operating system should be used?

We recommend to use a Windows NT, Windows 2000
or Windows XP operating system.

With the same hardware, the program execution
times are much shorter under Windows

NT/2000/XP than under Windows 98/Me.

When several computers are interconnected, it is
not possible to start OPC servers automatically

through a DCOM connection with Windows 98/Me.

Which communication channel/driver should be used? With some PC modules (e. g. PC adapter), you can

choose which driver you want to use. If available, the

Siemens communication driver should be used.

Is it possible to work simultaneously with STEP7 and
the DriveServer/Global Drive Control?

Yes, it is, but the Siemens driver must be used for
simultaneous operation.

Since communication with S7 is, however, very
often comparatively slow, the baud rate of the two

applications might be reduced depending on the

amount of data to be transmitted.

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