ABB AC 800M Manual page 36

PM8xx/TP830 Processor Unit – General
+24V
L+
1
L-
2
SA
3
SB
4
Battery
B+
2
B-
1
S
3
Ethernet Ethernet
CN1
Figure 5. PM861/PM864/PM865/PM866 – Functional Block Diagram
36
System
and user
mem.
+5V DC
+3.3V
+BV
CPU
(+3.3V DC)
Communication
Controllers
RS232
RS232
CN2
COM3
COM4
Shadow CEX-Bus
Interface
memory
RTC
SA SB
RS232
COM4
F
Section 1 Introduction
ModuleBus
FPGA
RCU
RCU Link
Compact Flash
Logic
R PRIM DUAL
P B
3BSE036351-510 A
INIT