Commissioning TMT84
32 Endress+Hauser
General description of blocks:
The block model displayed ( Page 32) shows the input and output data the head transmitter
makes available for cyclical data exchange.
a0009721
Fig. 14: Head transmitter block model, profile 3.02
6.5.3 Display value
The display value contains 4 bytes with the measured value and 1 byte with the status.
6.5.4 Input data
Input data are process temperature, internal reference temperature.
6.5.5 Data transfer from the head transmitter to the automation
system
The order of the input and output bytes has a fixed structure. If addressing is done automatically
using the configuration program, the numerical values of the input and output bytes can differ from
the values in the following table.
Block name Short description Slot
Physical Block General device data 0
Transducer Block 1 Sensor settings channel 1 1
Transducer Block 2 Sensor settings channel 2 2
Analog Input Block 1 Output of a measured value 1
Analog Input Block 2 Output of a measured value 2
Analog Input Block 3 Output of a measured value 3
Analog Input Block 4 Output of a measured value 4
Input byte Process parameter Access
type
Comment/data format Default value
unit
0, 1, 2, 3 *Temperature Read 32-bit floating point number (IEEE-
754) representation ä 31
°C
4 *Status temperature Status code -
* Depends on the selection of the Analog Input function block in the CHANNEL parameter ä 27.
Possible settings:
–Primary value of the transducer
–Measured value of sensor at sensor input
–Measured value of the internal reference
measuring point
ä 27
Select in the CHANNEL parameter Primary Value TB1
Select in the CHANNEL parameter Secondary Value TB1
Select in the CHANNEL parameter Internal Temperature
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