Product specifications

SM811 and TP868 Appendix A Hardware Units
278 3BSE036351-510 A
SM811 and TP868
Key Features
• MPC862P Microprocessor running at 96 MHz.
•32 MB RAM
• Provides supervision of the PM865 controller
during SIL1-2 operations and together with the
PM865 forms a 1oo2 diverse architecture for
SIL3 applications.
• Over voltage protection.
• Internal voltage monitoring.
• Supports hot swap.
• Supports redundancy.
• SM Link for synchronization of redundant pair.
Description
Physically SM811 Unit consists of two parts:
Termination Plate (TP868) and SM811.
The SM811 contains two pc-boards. The main board
contains the MPC862, SDRAM, Flash PROM, and
CEX-Bus slave interface. A daughter board contains
digital I/O, +3.3V supply with over-voltage
protection and voltage monitoring. The termination
plate contains CEX-Bus connectors and connectors
for the digital I/O.