06.03
7.3 SIMATIC S7 project
7-225
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
The encoder parameters depend on the encoder type.
Encoder type “does not exist” for encoder x means that axis x does not exist or
must not be used. In the PROFIBUS message frame, empty useful data are
transmitted for this axis.
Encoder parameters:
S
Resolution
Number of encoder lines [encoder lines/revolution]
Note
Both rotary and linear incremental measuring systems can be used, as the spe-
cific parameters of the measuring system are set in den NC machine data (see
Subsection 10.5.5, page 10-317ff).
Encoder parameters:
S
Parity
Select this radio button if the encoder data are to be transmitted from the
encoder to the ADI4 with a parity bit.
S
Resolution
Number of encoder lines [encoder lines/revolution]
S
MsgLength
Number of useful data bits transmitted by the encoder
S
Encoding
The following encoder codes are supported:
–
Binary
–
Gray
S
Baudrate
The following baudrates are supported:
–
187.5 kbps
–
375
kbps
–
750
kbps
Notice
The baudrate must be set identically for all SSI encoders. If different baudrates
are set, the baudrate of the SSI encoder with the highest encoder number is
used.
Encoder
Encoder type:
Does not exist
Encoder type:
TTL
Encoder type:
SSI
7 PROFIBUS DP Communication
