KROHNE MFC 400 FOUNDATION FIELDBUS - Manual (Page 33)

OPERATION
4
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MFC 400
www.krohne.com 11/2013 - 4003221901 - AD MFC 400 FF R01 en
4.5 Analog Input Block (AI 1...6)
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.
Parameter Parameter Parameter Parameter
DD name Access Description and settings Initial Value
ALERT_KEY ALERT_KEY ALERT_KEY ALERT_KEY
Alert Key
R/W 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
Setting:
• Other: Non-specific error active
• Block Configuration: Error detected in block configuration
• Link Configuration: Error detected in link configuration
• Simulation Active: Simulation enabled in this block
• Local Override: Output tracking of faultstate active
• Device Fault State: Device faultstate set
• Device Maintenance: Device needs maintenance soon
• Input Failure: Process variable has bad status
• Output Failure: Failure detected in output hardware
• Memory Failure: Memory error detected
• Lost Static Data: Static parameters cannot be recovered
• Lost NV Data: Non-volatile parameters cannot be recovered
• Readback Check: Failure detected in READBACK
• Maintenance Needed: Device NEEDS maintenance NOW
• Power Up: Recovery from power failure
• Out Of Service: Block actual mode is out of service
MODE_BLK MODE_BLK MODE_BLK MODE_BLK
Block Mode
Mix The actual, target, permitted and normal modes of the block. -
TARGET
Target
R/W 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 / Manual / 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 / Manual / OOS
PERMITTED
Permitted
R/W Defines the modes which are allowed for an instance in the
block. The permitted mode is configured based on application
requirements.
Auto
OOS
Setting:
Auto / Manual / OOS