Configuring The Analog Input Blocks; Additional Configuration; Scaling The Measured Value In The Ai Block - Endress+Hauser Levelflex FMP55 Operating Instructions Manual

Levelflex FMP55 FOUNDATION Fieldbus
Endress+Hauser
12.2.4

Configuring the Analog Input Blocks

The device has 2 Analog Input Blocks that can be assigned as required to the various
process variables.
Analog Input Block
AI 1
AI 2
1. If necessary, change the block name.
2. Set the block mode to OOS via the Block mode/MODE_BLK parameter, TARGET
element.
3. Via the Channel/CHANNEL parameter, select the process variable which should be
used as the input value for the Analog Input Block .
4. Via the Transducer scale/XD_SCALE parameter, select the desired unit and the
block input range for the process variable →  79. Make sure that the selected unit
suits the process variable that is selected. If the process variable and the unit do not
suit one another, the Block error/ BLOCK_ERR parameter reports the Block
Configuration Error and the block mode cannot be set to Auto.
5. Via the Linearization type/L_TYPE parameter, select the type of linearization for
the input variable (factory setting: Direct). Make sure that the settings for the
Transducer scale/XD_SCALE and Output scale/OUT_SCALE parameters are the
same for the Direct linearization type. If the values and units do not match, the Block
error/ BLOCK_ERR parameter reports the Block Configuration Error and the block
mode cannot be set to Auto.
6. Enter the alarms and critical alarm messages via the High alarm limit/ HI_HI_LIM,
High early warning limit/HI_LIM, Low alarm limit/ LO_LO_LIM and Low early
warning limit/LO_LIM parameters. The limit values entered must be within the
value range specified for the Output scale/OUT_SCALE parameter →  79.
7. Specify the alarm priorities via the Priority for high limit value alarm/HI_HI_PRI,
Priority for high early warning/HI_PRI, Priority for low limit value alarm/
LO_LO_PRI and Priority for low limit value early warning/LO_PRI parameters.
Reporting to the field host system only takes place with alarms with a priority greater
than 2.
8. Set the block mode to Auto via the Block mode/MODE_BLK parameter, TARGET
element. For this purpose, the Resource Block must also be set to the Auto block
mode.
12.2.5

Additional configuration

1. Link the function blocks and output blocks.
2. After specifying the active LAS, download all the data and parameters to the field
device.
12.3

Scaling the measured value in the AI Block

The measured value can be scaled if the L_TYPE = Indirect linearization type has been
selected in the AI Block. XD_SCALE defines the input range with the EU_0 and EU_100
elements. This is mapped linearly to the output range, defined by OUT_SCALE also with
the elements EU_0 and EU_100.
Commissioning (block-oriented operation)
Factory setting
CHANNEL
32949: Level linearized
32856: Distance
79