Endress+Hauser Tankvision Gauge Link NXA20, Руководство по эксплуатации

Страница: 17 / 40

Tankvision Gauge Link Operation
Hauser 17
7 Operation
7.1 Configuration
7.1.1 Connecting to the diagnostic/service port
Connect a laptop PC with a terminal emulation program (e.g. Hyperterminal) to the service
port using a straight-through “null modem” cable.
Set the terminal emulation program to the following communications settings:
When the ‘hyper-terminal’ terminal emulation programs are not available, for example
windows 7 is being used, a program such as Tera Term can be used. This program has been
tested, free and is open source.
If the PC doesn’t have a serial port and USB-RS232 can be used. A recommend USB-RS232
is the ULinx USO9ML2DR-2 converter.
7.1.2 Configuration using a terminal emulation program
Using this configuration only allows the Tankvision Gauge Link to be configured,
configuration of Honeywell Enraf and Emerson SAAB gauges must be done separately by a
competent engineer.
Once the Tankvision Gauge Link has been connected the diagnostic port and the terminal
emulation program has been set up, the Tankvision Gauge Link can be powered up. When
the Tankvision Gauge Link is powered up a message is printed and is similar to the message
shown below.
NVRAM STATUS- GOOD
P0264
VERSION – V1-0-0
CHECKSUM – 726E9AE7
FIELD - GPU
MODE - TERMINAL
HTS - 9600
FTS - 1200
HPA - NONE
GPU GAIN – 0
RS485 +VE BIAS - OFF
RS485 -VE BIAS – OFF
RS485 TERM - OFF
The data shown above gives general status and information on the basic configuration, such
as the status of none volatile (flash) memory, the project number of this model and the
firmware version number.
A checksum is also created when the Tankvision Gauge Link is powered up, this number can
be used to confirm the validity of the firmware.
The mode is the terminal emulation mode on the RS232 port.
Parameter Setting
Baud rate 9600 Baud
Data bits 8
Parity none
Stop bits 1
Flow control none