Endress+Hauser Tankvision Gauge Link NXA20, Руководство по эксплуатации

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Tankvision Gauge Link Operation
Hauser 19
Any other baud rate and an ‘INVALID COMMAND’ message will be printed.
HPA=X(return)
Where X is represents the parity.
The Host field bus can be configured to support 3 different parities. To configure the parities
is shown below:
Any other letter typed and an ‘INVALID COMMAND’ message will be printed.
GPUGAIN=X(return)
This command is only used for Enraf Gauges. This command increases the received data
sensitivity. If the communication is poor and the BPM cabling is long, by increasing this value
the communication should improve.
Where X represents a number between 0 and 7.
0 is the lowest gain and 7 is the highest gain.
For example for the GPU BPM field bus to have a gain of 7, type in the following command:
GPUGAIN=7(return)
RS485+=X(return)
RS485-=X(return)
Where X is represents Y (yes) or N (no).
These commands allow the user to enable the 910R bias resistors to pull the A and B lines
to +5V and 0 volts. This is sometimes referred to as “fail-safe” biassing mode.
Generally these are set to ON when the RS485 comms is point to point and OFF when devices
are multi-dropped on the RS485 comms.
To enable the bias resistors type:
RS485+=Y(return) and RS485-=Y(return)
To disable the bias resistors type:
RS485+=N(return) and RS485-=N(return)
Any other letter typed and an ‘INVALID COMMAND’ message will be printed.
RS485T=X(return)
Where X is represents Y (yes) or N (no).
This command allows the user to enable the 120R terminator resistor between the A and B
lines.
To enable the terminator resistor type: RS485T=Y(return)
To disable the terminator resistor type: RS485T=N(return)
19200 HTS=1920(return)
Parity Command
None HPA=N(return)
Even HPA=E(return)
Odd HPA=O(return)
Baud rate Command