KROHNE H250 M40 FOUNDATION FIELDBUS - Manual (Page 40)

4
OPERATION
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H250 M40
www.krohne.com 02/2014 - 4001208201 - AD H250 M40 FF R02 en
4.7 Analog Input Block (AI)
The following tables list the Analog Input Block parameters in alphabetical order.
It describes characteristics of the measurement values obtained from the Transducer Block in a
user defined way and to deliver it to the control system. There are also some parameters in the
Analog Input Block, that can be configured to get a measurement value quality as desired by the
user.
The following tables contain short parameter description, factory settings (Initial Value (IV)) and
possible settings.
Analog Input Block
Parameter
DD Name Access Description
settings Initial
Alert Key Alert Key Alert Key Alert Key RW The identification number of the plant unit. This information may
be used in the host for sorting alarms, etc.
0
Setting:
1...255
BLOCK_ERR BLOCK_ERR BLOCK_ERR BLOCK_ERR
Block Error
R This parameter reflects the error status associated with the
hardware or software components associated with a block. It is a
bit string, so that multiple errors may be shown.
OOS (Out of
Service)
Setting:
• Other: Non-specific error active
• BlockConfiguration: Error detected in block configuration
• LinkConfiguration: Error detected in link configuration
• SimulationActive: Simulation enabled in this block
• LocalOverride: Output tracking of faultstate active
• DeviceFaultState: Device faultstate set
• DeviceMaintenance: Device needs maintenance soon
• InputFailure: Process variable has bad status
• OutputFailure: Failure detected in output hardware
• MemoryFailure: Memory error detected
• LostStaticData: Static parameters cannot be recovered
• LostNVData: Non-Volatile parameters cannot be recovered
• Readback Check: Failure detected in READBACK
• MaintenanceNeeded: Device NEEDS maintenance NOW
• PowerUp: Recovery from power failure
• OutOfService: Block actual mode is out of service
MODE_BLK MODE_BLK MODE_BLK MODE_BLK
Block Mode
The actual, target, permitted and normal modes of the block.
TARGET
Target
RW This is the mode requested by the operator. Only one mode from
those allowed by the permitted mode parameter may be
requested.
OOS
Setting:
• Auto
• OOS
ACTUAL
Actual
R This is the current mode of the block, which may differ from the
target based on operating conditions. Its value is calculated as
part of block execution.
OOS
Setting:
• Auto
• OOS
AD_H250_M40_FF_R02_en_4001208201_PRT.book Page 40 Friday, February 21, 2014 11:25 AM