Siemens SINUMERIK 840Di sl Operating Manual page 383

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7
01/2008
Protocol
Transfer
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
This setting allows files to be archived and downloaded in the
SINUMERIK 840D PC format. When transferring MSD, FDD files, it is
not permissible to select "stop with end of data transfer character".
Other settings are also possible for ASCII data. These must match
those set at the PG.
The 6FX 2002-1AA01-
If V.24 data transfer starts, "Services" outputs status messages in the
dialog line indicating the data transfer status.
These messages are as follows:
"Wait for CTS signal"
"Wait for DSR signal"
"Wait for Xon character"
"Data transfer active"
The following protocols are supported for transfer using V.24,
• Xon/Xoff and RTS/CTS,
•  S oftware Flow Control and Hardware Flow Control
• Xon/Xoff (handshake)
For V.24 data transfer, the modes wait for Xon to receive and send
Xon to send data can be set under "interface".
The default setting is H11 or H13.
One possibility of controlling data transfer is to use the control
characters Xon (DC1, DEVICE CONTROL 1) and Xoff (DC3). If the
buffer of the peripheral device is full, it sends Xoff, as soon as data
can be received again, it sends Xon (= default setting).
It is also possible to use a secure protocol for data transfer (ZMODEM
protocol).
Normal/secured
For the selected interface, secure data transfer is set in conjunction
with handshake RTS/CTS.
"Normal data transfer" is the default setting
The protocol setting is requested for:
• Data input/output
• Series commissioning/upgrade in conjunction with V.24 or PG The
SinuCom PCIN software is required as partner on the external
PC/PG.
Services operating area
7.5
V.24 interface
cable is intended for this purpose.
7
7-383

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