KROHNE MFC 300 FOUNDATION FIELDBUS EN - Manual (Page 28)

4
OPERATION
28
MFC 300
www.krohne.com 02/2013 - 4001086702 - AD MFC 300 FF R02 en
4.6 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.
Parameter Parameter Parameter Parameter
Subelement Access Description and settings Initial Value
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 Block Error Block Error 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.
Other
Setting:
• Other: Non-specific error active
• Block Configuration: Error detected in block 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 Block Mode Block Mode Block Mode
Mix The actual, target, permitted and normal modes of the block. -
TARGET
Target
R/W By setting this parameter to an allowed value (one of the value
from permitted modes) user can change the block execution
mode. Changing of modes is required to change the access
permissions available to various parameters.
Auto
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.
Factory Settings
PERMITTED
Permitted
R/W This parameter defines allowed modes for this function block
and can be set by user.
Auto, Manual or
OOS
Setting:
Auto / Manual / OOS
NORMAL
Normal
R/W This is the mode which the block should be set to during
normal operating conditions.
Auto
Setting:
Auto