6 AWT210 PROFIBUS PA 2-WIRE TRANSMITTER | COM/AWT210/PROFIBUS-EN REV. A
4 Device overview
Four variants of AWT210 are available for use with pH, ORP,
pION, and conductivity sensors.
Supported sensors:
• pH
• 2-electrode conductivity
• 4-electrode conductivity
• toroidal conductivity
The AWT210 PROFIBUS PA is compliant with the PNO Profile for
The AWT210 PROFIBUS PA is a compact slave device
implementing:
• one Physical Block (PB)
the PBs describes the necessary parameters and
functions of the device or the operation of the device
hardware itself.
• four Transducer Blocks (TB)
the TBs contain the parameters of a device representing
the necessary parameters and functions of the
connection to the process.
Examples are measured process values, the type of
sensor and the calibration data.
There is one transducer block for each sensor type.
• two Function Blocks (FB)
both function blocks are AI blocks.
each FB can be connected to one TB at one time.
Reference documents
Document ID Title
5 Transmitter functionality and
operator interface controls
Process interface
Sensor Input Channels
The sensor module provides 8 terminals marked 1 to 8, 1 to 4 for
Process Variable (detailed in commissioning instructions) and 5
to 8 for temperature sensor (up to 3 wire RTD + shield).
Operating ranges correspond to the capabilities of each sensor
type.
Host interface
The AWT210 PA is a Bus Powered device with Profibus PA
communication. The communication module provides 5
terminals for bus power & functional earth connection.
• Terminals 1(A) & 2(B) are for polarity independent bus lines.
• Terminal 3 ( ) provides a functional earth connection.
• Terminals 4(A) & 5(B) are a repeat of Terminals 1(A) & 2(B).
Local interfaces, jumpers and switches
Local controls and displays
• The Device has a 75 x 65 mm (3.00 x 2.55 in.) monochromatic
dot matrix LCD display and 4 push buttons
Internal jumpers and switches
The device has 2 internal switches, situated on the
see Figure 2, page 8:
• SW1: Reset to Defaults
if the device is powered up with SW1 in the ON position it
returns device setup to default factory settings.
if powered up with SW1 in the OFF position the device
retains previously saved user settings*.
• SW2: Write Protection
If SW2 is in the ON position HW write protect shows as
enabled and the user is unable to make changes to setup
or send Write commands via PROFIBUS®.
With SW2 in OFF position the user is able to make
changes/send commands providing they are in a
sufficient access level and Software Write Protect has
not been enabled.
*Note: Reset to defaults is not performed if SW2 Write
Protection is ON.
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