Endress+Hauser Proline Promag 55 Operating Manual page 116

5 Analog Input function block
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116
5.2.6 Simulation of input/output
Parameters of the Analog Input function block allow simulation of the input and output of the
function block:
1. Simulation of the input of the Analog Input function block:
The parameter group SIMULATE can be used to specify the input value (measured value and
status). Since the simulation value runs through the entire function block, all the parameter
settings of the block can be checked.
Note!
If simulation is blocked by the jumper on the I/O board then simulation mode cannot be activated
in the parameter SIMULATE. In the Resource Block, the parameter BLOCK_ERROR shows whether
simulation of the Analog Input function block is possible.
2. Simulation of the output of the Analog Input function block:
Set the operating mode in the parameter group MODE_BLK to MAN and specify the desired
output value directly in the parameter OUT.
5.2.7 Diagnosis
Block errors and diagnosis information are displayed in the Analog Input function block via the
BLOCK_ERR parameter.
Note!
Further information on troubleshooting during the configuration of the Analog Input function block
is provided in the Operating Instructions for Promag 55 FOUNDATION Fieldbus (BA0126).
5.2.8 Rescaling the input value
In the Analog Input function block the input value or input range can be scaled in accordance with
the automation requirements.
Example:
• The system unit in the Transducer Block is m
• The measuring range of the sensor is 0 to 30 m
• The output range to the process control system should be 0 to 100%.
The Analog Input function block must be configured as follows:
• Parameter CHANNEL
Option: CHANNEL → 2 = Volume flow
• Parameter L_TYPE
Option: L_TYPE = Indirect
The "Volume flow" process variable of the "Flow" Transducer Block is rescaled linearly in the
AI Block via the input scaling XD_SCALE to the desired output range OUT_SCALE.
• XD_SCALE parameter group
XD_SCALE 0 %
XD_SCALE 100 %
XD_SCALE UNIT
Device functions Proline Promag 55 FOUNDATION Fieldbus
3
/h.
3
/h.
= 0
= 30
3
= m /h
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