beautypg.com

Operation, 6 analog input block (ai) – KROHNE IFC 300 Converter FOUNDATION FIELDBUS EN User Manual

Page 29

background image

OPERATION

4

29

IFC 300

www.krohne.com

02/2011 - 4001086501 - AD IFC 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

.book Page 29 Tuesday, January 18, 2011 3:40 PM