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LED
LINK
MS
NS
TxD/RxD green
IO
USR
A
B or C
More Information
The evaluation of the displayed LED signals is described in Chapter 3.1.11
"LED Display".
3.1.3.5 Configuration and Programming Interface
The Configuration and Programming Interface port is located behind a cover
flap. This communications port can be use with WAGO-I/O-CHECK and
WAGO-I/O-PRO CAA, as well as for firmware downloading.
Configuration and
programming interface
Fig. 3.1-2: Configuration and Programming Interface
A WAGO 750-920 Communication Cable is used to connect the 4 pin male
header and with a PC's 9-pin RS232 interface.
Warning
The communication cable 750-920 must not be connected or disconnected
while the coupler/controller is powered on!
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Color
Meaning
green
Link to a physical network exists
red/green
The ‚MS'-LED indicates the state of the node (Module State)
red/green
The ‚NS'-LED indicates the state of the network (Network State)
Data exchange taking place
red /green
The 'I/O'-LED indicates the operation of the node and signals faults
/ orange
encountered
red /green
The 'USR' LED can be controlled by a user program in a controller
/ orange
green
Status of the operating voltage – system
green
Status of the operating voltage – power jumper contacts
(LED position is manufacturing dependent)
Fieldbus Controller 750-872/020-000
• 45
Hardware
g01xx07e
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