Fieldbus controller 750-842 • 49
Hardware
Modular I/O System
ETHERNET TCP/IP
3.2.2 Hardware
3.2.2.1 View
24V 0V
+ +
-
-
01 02
750-842
ON
LINK
TxD/RxD
I/O
ETHERNET
C
D
B
A
ERROR
USR
0V
fieldbus
connection
RJ 45
configuration and
programming interface
status
voltage supply
-power jumper contacts
-system
data contacts
supply
24V
0V
supply via
power jumper contacts
24V
power jumper contacts
mode switch
flap
open
Fig. 3-17: Fieldbus controller ETHERNET TCP/IP
g084200e
The fieldbus controller comprises of:
•
Device supply with internal system supply module for the system supply as
well as power jumper contacts for the field supply via assembled I/O mod-
ules
•
Fieldbus interface with the bus connection
•
Display elements (LED’s) for status display of the operation, the bus com-
munication, the operating voltages as well as for fault messages and diag-
nosis
•
Configuration and programming interface
•
Operating mode switch
•
Electronics for communication with the I/O modules (internal bus) and the
fieldbus interface