Machine Server - Siemens Sinumerik 840D sl Function Manual

05.07

9.2 Machine server

DNC uses the data transmission functions available on machine servers for the
following reasons:

The server is replaced independently of DNC.

Changes on the server are independent of DNC.
All machine servers are OLE/COM servers with defined interfaces to DNC.
DNC normally uses the SerIntSvr for the interface to serial machines. Separate
machine servers can be created for machines that require a different type of data
transmission.
9.2.1 SerIntSvr
Function
DNC offers the SerIntSvr as standard for serial data transmission without protocol.
The SerIntSvr features a dialog interpreter function and can, if necessary, also call
up an external dialog interpreter and the code conversion servers.
9.2.2 Separate serial machine servers
If the SerIntSvr cannot fulfill the requirements, customer-specific machine servers
can be created.
Applications include the following:

Machines without a serial interface

Machines that require serial data transmission with protocol
9.3 Code conversion server
DNC code conversion server
The DNC code conversion server offers three conversion codes: ISO, ASCII and
EIA. The definition tables for the conversion contain the CODES.TXT file. It is in
the program directory of DNC together with the DNCConvSvr code conversion
server.
Separate code conversion servers
If the DNCConvSvr cannot fulfill all the requirements, separate code conversion
servers can be created. Possible applications include:
Converting a different code
Further conversions (e.g.: A = AV)
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Motion Control Information System DNC (FBDN) - 04/10 Edition
DNC Plant/DNC Cell (FBDN1)
9 Software structure
FBDN1/9-153