KROHNE BM 100A Handbook User Manual

Page 73

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Handbook BM 100 A

73

9.4.3 F3

Exit:

To quit PCSTAR.


9.4.4 F4 Serial (parameters):
For configuring the gauge for networks

This will allow the user to select a particular
device in the network. A window will open with
the parameters available explained below:

Serial Port

The serial port allows the user to select a free serial port (COM 1 to 4)
on the computer.

BM100 Address

Type the “Address” that you have given a gauge (a value between 0
and 255) and press ENTER or OK. This will select the required device.
If you are in a point to point network leave the box at its default value (-
1).

Device Identifier

Device Identifier refers to the “Device number” given in User Function
No. 1.4.4.

Protocol

Protocol refers to the signal received from the gauge. Use :
RS485 (using SMART as the base signal) for RS485 networks. SMART
or HART for point to point networks.

Initial baud rate

This may be changed depending on the protocol:
SMART communication is restricted to 1200 Baud. RS485
communication may be used between 1200 and 19600 Baud. Trials
should be run to find the optimum operating conditions.

RTS shutdown

A parameter for communication between the PC and gauge using the
RTS signal. This defines the time frame in which data is transmitted.
This value is dependant on the Operating System used by the PC.
Default value 0

RTS state

The RTS state depends on the type of RS232 converter used. For:
RS232<>HART

TM

(i.e. VIATOR from MACTEK) and

RS232<>RS485 (i.e. K485-ISOL from KK Systems Ltd.) use inversed
RTS state.

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