Communication With The Cp 315 - Siemens SINUMERIK 840 Planning Manual

06.91
3.2.1

Communication with the CP 315

When using the CP 315/373 interface modules, the user can select from a choice of eleven
combinations of procedure, protocol and message frame specification for interface assignment.
The protocol and message frame specifications in the column "* with AS 512 * SINUMERIK
850/880 message frames" is compatible with existing configurations of SINUMERIK 850
systems. The possible combinations indicated in the remaining columns were added
subsequently and are referred to as "flexible communication".
The following figure shows the assignment of procedures to protocols or message frame
specifications:
Protocol or
* with AS 512
message
frame
* SINUMERIK
specifica-
850/880-
tion
message
Procedure
frames
LSV2 Possible
3964 R Possible
XON/XOFF –
RTS-LINE –
TRANSPARENT –
Allocation of procedure to protocol or message frame specification
Brief description of the message frame specification:
• SINUMERIK 850/880 message frames are message frames with System 800 identification.
• Free message frames are message frames without System 800 identification.
The message frames are described in more detail in Section 6.
Brief description of the procedures:
• LSV2 is an asynchronous synchronous data transmission procedure
(start-stop procedure) for point-to-point connections (DIN 66019).
• The 3964R procedure is an asynchronous, bit-serial transmission method.
• The XON/XOFF procedure is a a character-oriented transmission method which is
controlled by the characters XON and XOFF.
• RTS-LINE is a line-controlled transmission procedure. The RTS and CTS signal lines
replace the control characters XON and XOFF.
• The TRANSPARENT procedure does not restrict the user to any guidelines. Only one
control line can be connected.
The procedures can be configured independently of each other for each activated interface.
For a detailed description of the procedures see Section 3.3.
© Siemens AG 1989 All Rights Reserved
SINUMERIK 840/880 (PJ)
Flexible communication
* w/o AS 512
* with AS 512
* SINUMERIK
* Free message
850/880
frames
mess. frames
Possible Possible
Possible Possible
– –
– –
– –
6FC5 197-0AB20-0BP0
3 Interface Modules
3.2.1 Communication with the CP 315
* w/o AS 512
* Free message
frames
Possible
Possible
Possible
Possible
Possible
3–11