FAD-40 Technical Manual, Rev.2.1.0; February 2022
Page 31 of 55
ST Status LED
State
Indication
Comment
Off
No power or not initialized
No power or profibus module is in initializing
Green
Initialized
Flashing Green
Initialized, diagnostic event(s) present
Diagnostic is active
Red
Exception error
There is an exception error
OP Operation Mode LED
State
Indication
Comment
Off
Not on-line / No power
Check power and cable
Green
On-line, data exchange
-
Flashing Green
On-line, clear
-
Flashing Red (2x)
PROFIBUS configuration error
Check GSD file configuration.
6.2. Electrical Connections
Profibus and RS-232C connections are shown in figure 7.2.PROFIBUS Connector (DB9F)
Pin
Signal
Description
1
-
-
2
-
-
3
B Line
Positive RxD / TxD, RS-485 level
4
RTS
Request to send
5
GND Bus
Ground (isolated)
6
+5V Bus output
+5V termination power (isolated)
7
-
-
8
A Line
Negative RxD / TxD, RS-485 level
9
-
-
Housing
Cable shield
Ground
Figure 7.2
– FAD-40PB interface connections
RS-232C Serial Interface
Use
Setup via xFace
Baud rate
9600 bps
Length and parity
8 bit no parity
Start / Stop bits
1 start bit and 1stop bit
Profibus-DP Interface
Use
Interfacing with PC or PLC
Data format
Profibus
Baud rate
Automatically detected and supported baud rates are 9.6 kbps, 19.2 kbps, 45.45
kbps, 93.75 kbps, 187.5 kbps, 500 kbps, 1.5Mbps, 3 Mbps, 6 Mbps and 12
Mbps. No ‘baud rate’ instance exists.
WARNING:
Connect the shield to the reference ground or shield pin of the power connector.
WARNING:
Disconnect xFace PC software for Profibus interfacing.