Product specifications

CI854/CI854A and TP854 – PROFIBUS DP Interface Appendix A Hardware Units
298 3BSE036351-510 A
Functional Block Diagram
Figure 72. Block Diagram – CI854A. (CI854, same diagram without PRIM/DUAL LEDS)
CEX-Bus Interface
+5 V / +3.3 V
+24 V
Communication
Communication
Extension Bus
DC/DC
Converter
CPU-Kernel and Memory
PROFIBUS Master ASIC
Line Redundancy Unit
RS485
PROFIBUS A
PROFIBUS B
RxB
RxA
F
R
Extension Unit
Communication
Extension Baseplate
DUAL
PRIM