Endress+Hauser Tankvision Gauge Link NXA20, Руководство по эксплуатации

Страница: 20 / 40

Operation Tankvision Gauge Link
20 Hauser
Generally this is set to ON when Tankvision Gauge Link is at the end of a RS485 multi-drop
line.
Any other letter typed and an ‘INVALID COMMAND’ message will be printed.
CONFIG(return)
This command enables gauge address’s / registers / functions to be written directly to the
modbus holding registers which hold the gauge parameter address’s/registers. Please refer
to document TankVisionFieldLinkModbusMapV1-3-1.
Once this command has been entered values can then be written directly to the holding
registers, using the below command.
Z=X(return) or
Z=XX(return) or
Z=XXX(return) or
ZZ=X(return) or
ZZ=XX(return) or
ZZ=XXX(return) or
ZZZ=X(return) or
ZZZ=XX(return) or
ZZZ=XXX(return) or
ZZZZ=X(return) or
ZZZZ=XX(return) or
ZZZZ=XXX(return)
Where Z represents the modbus holding register and X represents the value to be put into
this holding register.
After every command, enter the value into the holding register, the cursor in the terminal
emulation program will go to the start of the next line and wait for another value to be
entered into the holding register. If no more values are to be entered press (return) and the
message ‘DOWNLOAD COMPLETE’ message will be printed.
For example:
Two gauges are required to be polled by the Tankvision Gauge Link, these gauges are an 873
radar gauge and an 854 servo gauge. Level, temperature and temperature elements are
required from both of the gauges. The 873 gauge also requires a live water value to be read
from it. The 873 gauge has an address of 1 and the 854 gauge has an address of 15.
Type the following bold letters to enter values into the modbus holding registers to poll for
the above parameters.
Enter Result
CONFIG(return) Enable configuration
0=1(return) Level address = 1
100=1(return) Temp address = 1
200=1(return) Element temps address = 1
300=1(return) Water address = 1
1100=82(return) Gauge type is a radar (82)
1=15(return) Level address = 15
101=15(return) Temp address = 15
201=15(return) Temp elements address = 15
1101=83(return) Gauge type is a servo (83)
(return)