Concept
Automation Server Screw Terminals
There are 12 screw terminals at the top of the Automation Server and 3+4 pluggable screw terminals at the bottom.
Automation Server screw terminals and other connectors
|
Terminal number |
Designation |
Usage |
|
1 |
RET |
Internally connected to ground |
|
2 |
Factory |
No function |
|
3 |
|
|
|
OPERATOR PANEL a |
|
|
|
4 |
RET |
Internally connected to ground |
|
5 |
10 V |
10 VDC max. 120 mA |
|
6 |
Tx/Rx + |
RS-485 communication |
|
7 |
Tx/Rx – |
RS-485 communication |
|
LON |
|
|
|
8 |
Tx/Rx + |
RS-485 LonWorks |
|
9 |
Tx/Rx – |
RS-485 LonWorks |
|
10 |
Shield |
Internally connected to ground |
|
11 |
LON-1 |
TP/FT-10 Free topology LonWorks network, 78 kbps |
|
12 |
LON-2 |
TP/FT-10 Free topology LonWorks network, 78 kbps |
- Operator Panels are not supported.
The screw terminals 13 to 19, intended for RS-485 communication, act as connectors to the Automation Server and are easily inserted/removed without disrupting the network. Doing so may help in isolating possible RS-485 communication problems.
|
Terminal number |
Designation |
Usage |
|
COM A |
|
|
|
13 |
Tx/Rx + |
RS-485 communication |
|
14 |
Tx/Rx – |
RS-485 communication |
|
15 |
Shield |
Internally connected to ground |
|
COM B |
|
|
|
16 |
Tx/Rx + |
RS-485 communication |
|
17 |
Tx/Rx – |
RS-485 communication |
|
18 |
Shield |
Internally connected to ground |
|
19 |
3.3V |
3.3 VDC, 100 mA output for RS-485 biasing |
Hardware Overview
Automation Servers