Endress+Hauser PROline Prosonic Flow 93 Function Manual page 170

4 Analog Input function block
170
Base index: AI 1 = 350, AI 2 = 390, AI 3 = 430, AI 4 = 470, AI 5 = 510, AI 6 = 550, AI 7 = 590, AI 8 = 630
Parameter Write access
with operating
mode
(MODE_BLK)
BLOCK_ERR read only
PROline Prosonic Flow 93 FOUNDATION Fieldbus
Analog Input function block /
Description
Displays the active block error.
Display:
SIMULATION ACTIVE
Simulation in the "Simulate" parameter group of the Analog Input
function block is active.
OUT OF SERVICE (OOS)
The function block is in the "Out of Service" operating mode.
INPUT FAILURE
This block error indicates that the input value transmitted by the
Transducer Block "TRANSDUCER_CH1", "TRANSDUCER_CH 2"
(volume flow channel 1 and 2) or "TRANSDUCER_TOT" (totalizer) is
not valid.
Possible causes:
A serious device error, such as a faulty electronic module, is
present. The exact cause of the error is then displayed in the
"Diagnosis - Actual System Condition" parameter in the Transducer
Block "TRANSDUCER_DIAG" (diagnosis, base index 1600). More
information on eliminating errors can be found in the Operating
Instructions for PROline Prosonic Flow 93 FOUNDATION
Fieldbus,BA078D/06/en.


Note!
The "INPUT FAILURE" block error is relayed to downstream
function blocks or higher-level process control systems by means
of the status "BAD" for the output value OUT (AI Block).
BLOCK CONFIG ERROR
In the Analog Input function block, a configuration error is present
which can be caused by the following:
• A unit was selected via the XD_SCALE parameter group which
does not suit the input value set in the CHANNEL parameter. For
example, if "volume flow channel 1" was defined as the input
value, a valid unit for the volume flow, such as m³/h, must be
selected in the XD_SCALE parameter group.
• No valid input value was selected in the CHANNEL parameter,
(CHANNEL = 0, Uninitialized).
• No valid linearisation type was selected in the L_TYPE
parameter, (L_TYPE = 0, Uninitialized).
• For "Direct" linearisation type, (L_TYPE parameter):
The settings (unit, scaling) in the XD_SCALE and OUT_SCALE
parameter groups do not match.


Note!
• The operating mode of the Analog Input function block cannot
be set to "AUTO" in the event of a "BLOCK CONFIG ERROR"
block error.
• The status of the output value OUT (AI Block) is BAD until the
configuration error is eliminated which means that it cannot be
used for downstream function blocks.
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