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HART Multiplexer System KFD*-HM*-16
Commissioning
5.3
FDT framework PACTware
5.4
Multiplexer configuration
5.4.1
Connection to the service station (PC, DCS/process control system)
Attention
5.4.2
DIP switch settings
TM
TM
PACTware
is the first open source Process Automation Configuration Tool with
an open FDT interface (Field Device Tool). For the first time this enables all field
buses and field devices in a system, independent of the manufacturer, to be
configured and assigned parameters using a single engineering tool.
Representative example on the basis of PACTware
TM
The PACTware
user interface is divided into two parts: The project tree is located
in the left part; the data and input fields being represented in the right.
The system structure is represented in the project tree. Above the HART Multiplexer
there is a HART driver and above that a host system (PC). All the connected
Multiplexer Slaves are to be found under the HART Multiplexer Master.
Under these Slave units there are the HART compatible field devices.
The connection to the service station or to the control system is made via a
multidrop-able RS 485 interface. The baud rate of this interface can be set to 9600,
19200 or 38400 Baud via the DIP switches 2 and 3 (see section 5.4.2). The device
address for the communication via RS 485 is set by the DIP switches 4 to 8 (see
section 5.4.2).
When setting the address, care should be taken to ensure that no address is
assigned more than once, since this can lead to communication errors or even
communication failure.
The adjusted baud rate must comply with the service station.
8 DIP switches are located on the top of the device. DIP switch 1 is used by the
manufacturer for testing the device and must therefore always be set to OFF.
DIP switch
1
Meaning
Setting
OFF
Normal status
DIP switches 2 and 3 determine the baud rate of the RS 485 interface.
DIP switch
2
Setting
OFF
OFF
ON
ON
DIP switches 4 to 8 determine the RS 485 address. A value is assigned to each of the
individual DIP switches for this purpose. The resulting address is given by the
addition of the set values.
DIP switch
4
Setting
ON
Example:
OFF
3
Meaning
OFF
9600 Baud
ON
19200 Baud
OFF
38400 Baud
ON
Not permitted
5
6
7
8
ON
ON
ON
ON
ON
ON
OFF
ON
TM
Meaning
Value 16
Value 8
Value 4
Value 2
Value 1
address = 8 + 4 + 1 = 13
25
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