Table of Contents
Advertisement
Saia-Burgess Controls AG
1.7.2
Serial S-Bus communication over RS-485
This communication has the advantage of using the well known communication
protocol S-BUS. With its only 2 wires (+1 gnd) you can easily access to your data
and display any value on the MB-Panel screen. This communication protocol lets you
make a multipoint connection.
This RS-485 S-Bus connection is foreseen to be used between our PCD7.D4xx and
PCD3.M3020, PCD1.M125/M135, or PCD2.M150 where «less fast» communications
are acceptable.
The communication speed is limited to 115'200 bauds.
Quick test?
■ Take Saia PCD PCD1.M125 for ex. and our MB-Panel PCD7.D4xx. Have a 3-wire
cable (shielded is always better).
■ On the side PCD1.M125 you can plug your cable onto one of the serial RS-485
port at disposal using for ex. the port #1 (together with PCD7.F110 Module).
■
Then define the HW settings
ager). S-Bus support must be selected. Enter a valid Station Number. Serial S-Bus
Port must also be activated and configured as the following example:
Setup adjustment of MB-Panel:
Configure now the MB-Panel entering in the Setup Menu (refer to chapters 5 and 6):
In the setup Menu Configuration/Communication click on the button Configure
below Port #1 (RS-485) in order to adjust the communication parameter. Here the
Baudrate value especially should be defined and must match with the Communi-
cation Settings of the PLC connected to. Then go back to the previous page.
Manual PCD7.D4xx │ D ocument 26-851 ENG12 │ 2 016-02-05
S-Bus RS-485
of the Saia PCD device (see PG5: SBC Project Man-
Quickstart
Communication
1
1-7
Advertisement
Table of Contents
