Operation
Tankvision Gauge Link
26
Hauser
For example:
If a system requires a level from an Enraf 854 (address 1) and average temperature and
elements from an 864 (address 11) then configuration can be done as shown below:
All the data will be picked up from input registers with an address of 1.
If a system requires a level from an Emerson REX (address 1) and average temperature and
elements from a DAU (address 101) then configuration can be done as shown below:
All the data will be picked up from input registers with an address of 1.
As it can be seen, the element temperature is automatically mapped to address 101 because
the elements is associated with average temperature. No gauge type is required for the TRL/
2 fieldbus.
7.1.7
Honeywell Enraf Fieldbus
Configuration of the Tankvision Gauge Link to poll for Honeywell Enraf gauges has been
covered in the above examples and explanations. Configuring the Tankvision Gauge Link to
poll for Emerson SAAB gauges is slightly different.
7.1.8
Emerson SAAB Fieldbus
Configuration of the Tankvision Gauge Link to poll for level and temperature from Emerson
SAAB devices is the same as configuring Honeywell Enraf devices, in that the level address
comes from holding registers 0 – 31 and temperature address comes from holding registers
100 -131.
The temperature elements address automatically comes from the address in holding
registers 100 – 131, so there is no need to configure any addresses in holding registers 200
– 231.
Live water, Vapour temperature, Base pressure, Liquid pressure and vapour temperature can
be mapped back to the input registers with an address of the level address. The TRL/2
protocol doesn’t specifically have a register for the above parameters, but the Emerson REX
gauge has analogue and HART inputs which can be mapped and scaled within the Emerson
REX gauge. These inputs can then be picked up on the TRL/2 protocol and mapped within
the Tankvision Gauge Link.
The Tankvision Gauge Link will not scale the above parameters which come back on the TRL/
2 protocol, this must be done in the gauge and this is the usual practice when working with
Emerson equipment.
Enter
Result
CONFIG(return)
Enable configuration
0=1(return)
Level address = 1
100=11(return)
Temp address = 11
200=11(return)
Temp elements address = 11
1100=83(return)
Gauge type is a servo (83)
(return)
Enter
Result
CONFIG(return)
Enable configuration
0=1(return)
Level address = 1
100=101(return)
Temp address = 101
(return)
