Festo CTEU-DN, Description, Functions And Maintenance

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A. Technical appendix
A-7
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
A.1.3 Signal transmission
I-port interface signal transmission
– Internal cycle time 1 ms per 1 byte of user data
Maximum effective data rate (baud rate)
dependent on the line length (reference values)
Main bus
line
1)
Branch line
2)
baud rate
3)
Individual
branch line All branch lines
(total)
Max. 100 m Max. 6 m Max. 39 m 500 kBaud
Max. 250 m Max. 6 m Max. 78 m 250 kBaud
Max. 500 m Max. 6 m Max. 156 m 125 kBaud
1)
Trunk line
2)
Drop line
3)
The setting of the baud rate depends on the length of all network lines.
•
Consider the length of the fieldbus line between the PLC and bus node (main bus line) as well as
the length of possibly available branch lines and branches (for continued fieldbus configurati-
on).
•
Also consider the overall length (sum) of all branch lines.
•
The subsequent table supplies reference values for the maximum baud rate, dependent on the
line lengths. The baud rates named here are not supported by all controllers.
•
Observe possibly deviating specifications in the manual of your control system or network
scanner. Further information can be found in the specifications of the ODVA
www.odva.org.
Tab. A/5: Signal transmission (technical data)
Note
Technical data of the connected equipment can be found in
the respective product documentation.