Device Functions Proline Promass 83 FOUNDATION Fieldbus 5 Analog Input function block
Endress+Hauser 185
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
The status of the device is displayed via the BLOCK_ERR parameter specified in the FOUNDATION
Fieldbus specification.
Detailed information on the current device status is displayed via the "Diagnosis" Transducer Block
in the manufacturer-specific parameter "Diag. - Act.Sys.Condition" ( → Page 131).
For more information on rectifying errors → See Operating Instructions for Proline Promass 83
FOUNDATION Fieldbus (BA065D), "Troubleshooting" section.
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 kg/h.
• The measurement range of the sensor is 0 to 30 kg/h.
• 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
Select: CHANNEL → 1 = Mass flow
• Parameter L_TYPE
Select: L_TYPE = Indirect
The process variable "Volume flow" from the "Flow" Transducer Block is rescaled linearly in the
AI Block via input scaling XD_SCALE to the desired output range OUT_SCALE.
• Parameter group XD_SCALE
XD_SCALE 0 % = 0
XD_SCALE 100 % = 30
XD_SCALE UNIT = kg/h
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