Identifying the components Tankvision
12 Endress+Hauser
4.4 Host Link NXA822
• The Host Link NXA822 collects data from all Tank Scanners NXA820 on a network and
transfers them to the host system.
• The MODBUS option supports serial EIA-232(RS) and EIA-485(RS) or MODBUS TCP/IP.
The NXA822 is configured as a MODBUS slave. Supported functions are:
– Coil Status (#01)
– Holding Registers (#03)
– Input Registers (#04)
– Write Modbus Values (#06)
• The MODBUS register map is described via XML files and can easily be adapted to
individual MODBUS master requirements.
• Gauge commands for Servo Gauges
• 90 tanks (more on request) can be allocated to each Host Link NXA822. Each of these
tanks must have been allocated to a Tank Scanner NXA820 beforehand.
• Tanks from up to 6 different Tank Scanners NXA820 (more on request) can be integrated
in this way.
• Per system 2 NXA822 units can be installed.
4.4.1 Ordering information
Detailed ordering information is available from the following sources:
• In the Product Configuration on the Endress+Hauser website: www.endress.com → Select
country → Instruments → Select device → Product page function: Configure this product
• From your Endress+Hauser Sales Center: www.endress.com/worldwide
Product Configurator - the tool for individual product configuration
• Up-to-the-minute configuration data
• Depending on the device: Direct input of measuring point-specific information such as
measuring range or operating language
• Automatic verification of exclusion criteria
• Automatic creation of the order code and its breakdown in PDF or Excel output format
• Ability to order directly in the Endress+Hauser Online Shop
4.4.2 Product picture
L00-NXA8xxxx-10-08-06-xx-004
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