Appendix A Hardware Units CI851 and TP851 – PROFIBUS DP Interface
3BSE 027 941 R301 155
Indicators
Technical Data
Table 39. CI851 – PROFIBUS DP LED Indicators
Designation/Color Function
F(ault) /Red Unit error detected. Controlled by Control
Software. Set and cleared by the Hardware during
controller Reset.
R(un) /Green Operating. Controlled by the Control Software.
Cleared by the Hardware during controller Reset.
Rx/Tx /Yellow Transmission to or from the unit.
RTS /Yellow Request to transmit from the unit.
Table 40. CI851 PROFIBUS DP Interface Specifications
Item Value
Type DP Master Class I
Protocol PROFIBUS DP
Communication speed 9.6, 19.2, 93.75, 187.5, 500, 1500, 3000,
6000 or 12000 kbit/s
Galvanic isolation Yes
Status indicators Run normally green, Fault exceptionally
red, the two traffic indicators RTS and
Rx/Tx are yellow flashing controlled by the
traffic pace.
Connector DB9, female
Current consumption
(from CEX-bus 24 V DC)
150 mA typical (200 mA max.)
Power dissipation 3.6W typical
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