27
RS485; interface for external monitoring
Terminal
X14 X15 Designation
Comment
1 -
2
RS485+ IN
3 RS485-
IN
4 IN
reference
1 Bus
term
2
RS485+ OUT
3 RS485-
OUT
4
Bus termination-
Isolated!
Fixed setting!
Baud rate:
115.2 kBaud
Parity: Even
Stop bits.
1
Data bits:
8
Protocol: USS,
4/6 words
Address: 0
The RS485 interface supports the USS protocol (universal serial interface protocol), which can be
used for transmission of data, e.g. to a data logger of a remote monitoring system.
Figure 13: Connection of the standard interface
For operation of this interface ensure that the same interface configuration is set for every bus user.
Bus termination is made by means of wire bridges on X14 to the last bus user (inverter “n“).
USB; connection of operating interface
Æ
Service interface!
Terminal
Designation Comment
X16 Standard
USB
connection
USB plug, isolated!
Fixed setting!
Baud rate:
115.2 kBaud
Parity: Even
Stop bits.
1
Data bits:
8
Protocol: USS,
4/6
words
Plug: USB Device
(B)
PMU, Data Logger,
Remote Monitoring System