Installing the PROFIBUS DP Interface, CI851/TP851 Section 2 Installation
68 3BSE 027 941 R301
Installation of PROFIBUS DP
For installation of the fieldbus and recommended certified fieldbus devices and
components, see Related Documentation on page 17 and Appendix C,
Recommended Components. The PROFIBUS DP must be connected with shielded
twisted pair cables.
Table 10. CI851 - PROFIBUS DP Connector
PIN Designation Description
1 Shield Shield/protective ground
2 – Not Used
3 B-line Receive/Transmit Data B-line
4 RTS(TTL) Indicates direction RTS(TTL) Indicates direction
5 GND Bus GND Bus
6 +5 V Bus For terminating resistors
7 – Not used
8 A-line Receive/Transmit Data A-line
9 – Not used
For additional information on PROFIBUS DP and other suitable components, visit
the PROFIBUS User Organization web site.
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