ABB AC 800M

Section 1 Introduction PM8xx/TP830 Processor Unit – General
3BSE 027 941 R301 33
Figure 5. PM861/PM864 – Functional Block Diagram
CPU
Communication
Controllers
System
and user
mem.
Logic
2
1
3
L+
L
-
SA
SB
1
2
4
3
B+
B
-
S
Ethernet
Ethernet
CN1
CN2
FPGA
Shadow
memory
CEX
-
Bus
Electrical
O
ptic
al
RCU Link
RS232
COM4
RS232
COM4
RS232
COM3
+3.3V
DC
Battery
+BV
(+3.3V DC)
SB
Compact Flash
INIT
+24V
DC
R
+5V DC
RCU
ModuleBus
Interface
CEX-Bus
Interface
F
P B PRIM
DUAL
SA