3 field of application – Westermo FD-10 User Manual
Page 7
7
6630-2212
3.3 Field of application
Between Fieldbus adapters is PROFIBUS DP I/O data transferred over a transmission
line, divided in following type of applications:
• Point to point transfer
Continuous transfer of defined PROFIBUS I/O data modules between two FD-10’s.
This application is ideal when a high speed update of PROFIBUS DP data is required
and where no additional measures at installation is desired.
This application is realised by two FD-10 P (point to point mode) with an inter-
connecting line and modems, if required.
• Master controlled transfer (Addressed)
One transfer of defined PROFIBUS I/O data modules between two FD-10’s, on demand
from a PROFIBUS DP master. One FD-10 act as serial transfer master and can transfer
I/O data between various FD-10’s, selected by serial transfer address.This application is
ideal when a PROFIBUS DP master need connection to two, or more, independent
remote PROFIBUS DP systems. Radio system or RS-485 is typically used as transfer line.
Required additional measures, as serial transfer addressing.
This application is realised by one FD-10 A and one or many FD-10 P (addressed serial
transfer slave mode) with an interconnecting line and modems, if required.
FD-10 P
PR
OFIBUS DP
PR
OFIBUS DP
FD-10 P
Modem
(e.g PSTN*, Radio)
PROFIBUS DP
master
PROFIBUS DP
master
CHANNEL 3
PWR
RD
TD
DCD2
DCD3
DCD4
CHANNEL 2
POWER
12-36V DC
1
2
3
4
5
- +
R+ R- T+ T-
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
R+ R-
T+ T-
T+ T-
R+ R-
Modem
(e.g PSTN*, Radio)
CHANNEL 3
PWR
RD
TD
DCD2
DCD3
DCD4
CHANNEL 2
POWER
12-36V DC
1
2
3
4
5
- +
R+ R- T+ T-
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
R+ R-
T+ T-
T+ T-
R+ R-
FD-10 A
FD-10 P
PROFIBUS DP
master
PROFIBUS DP
master
PROFIBUS DP
master
Serial
master
Serial
slave
Serial
slave
FD-10 P
PROFIBUS DP
PR
OFIBUS DP
PROFIBUS DP
* PSTN = Public Switch Telephone Transfer