3.6 Analog input block
The analog input block conditions the signal output by the transducer block and
outputs signal to the PCS or other function blocks.
Operation The block is opened by a click on the analog input line.
—E+H_CERABAR_S_XXXXXXXX
—RESOURCE_XXXXXXXX (RB)
—TRANSDUCER_XXXXXXXX(TBPR)
—ANALOG_INPUT_XXXXXXXX (AI)
Parameters changes from the tool are made off-line while the device is operating. The
changes are downloaded by first setting MODE_BLK = OOS then pressing the WRITE
CHANGES button. Press the READ ALL button to check the values stored in the de-
vice. Normally operation is resumed as soon as MODE-BLK is set to AUTO.
Block administration
PRIMARY
VALUE (PV)
L_TYPE
XD_SCALE
SIMULATE
CHANNEL
DIRECT
INDIRECT
INDIRECT
SQRT
OUT_SCALE
ALARMS
OUT
HI_HI
HI
LO
LO_LO
EU
01
0
1
0
1
01
FIELD_VAL
PV
EU
EU
EU
τ
PV_TIME
MODE
STATUS
SECONDARY
VALUE (SV)
CHANNEL
VALUE
e.g. PCS
or other
Output scaling
Input scaling
BA211Y30
Alarm
configuration
Status
calculation
Value
output by
transducer
block
Figure 3.5
Schematic diagram of analog input block as used in AUTO mode
Parameter Description
TAG_DESC
User description of the intended application of the block.
MODE_BLK
See description in Resource block
The possible operating modes of the analogue input block are:
AUTO: the block is operating as normal.
MAN: the block is operated with a manually entered primary value.
OOS: the block is out of service.
BLOCK_ERROR
Shows the error status associated with the block components.
Out-of-Service: the block is in OOS mod.e
Simulation active: shows the setting of DIP-switch WP.
Input failure/process variable has BAD status
3 Foundation Fieldbus Interface Cerabar S FF
24 Endress+Hauser
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