4 Product description
Maschinenfabrik Reinhausen GmbH 2020
36
6385142/08 EN
ETOS
®
ED
4.5.7.2 CPU (central processing unit) I
The CPU I assembly is the central processing unit for the device. It contains
the following interfaces:
▪ Internal system interface RS232 (COM1)
▪ Serial interface RS232/485 (COM2)
▪ 3x Ethernet (ETH1, ETH 2.1, ETH 2.2)
▪ USB (USB 2.0)
▪ 2x CAN bus (CAN 1, CAN 2)
CPU
C
A
N
1
1
9
C
A
N
2
1
9
C
O
M
1
1
9
C
O
M
2
1
9
-
+
24V DC
RUN
INIT
ERR
U
S
B
2
.0
4 6
2
A
8
C
H
TEST
PROG
RUN
4 6
2
A
E
0
8
C
L
ETH 1
ETH 2.1
ETH 2.2
Figure 12: CPU I assembly
4.5.7.3 Voltage measurement and current measurement
The UI 1 assembly is used for measuring 1-phase voltage and current.
Figure 13: UI 1 assembly