Endress+Hauser Proline Promag 55 Operating Manual page 77

Device functions Proline Promag 55 FOUNDATION Fieldbus
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Endress+Hauser
The CHANNEL parameter in the Analog Input function block is used to assign which process
variable is read in and processed in the downstream Analog Input function block:
• Process variable Calculated Mass Flow
• Process variable Volume Flow
• Process variable Totalizer 1
• Process variable Totalizer 2
• Process variable Totalizer 3
3.2.2 Selecting the operating mode
The operation mode is set by means of the MODE_BLK parameter group. The Transducer Blocks
support the following operation modes:
• AUTO (automatic mode)
• OOS (out of service)
Note!
• The block status OOS is also shown via the parameter BLOCK_ERR. In operating mode OOS, if
write protection is not enabled and the access code is entered, you can access all the write
parameters without restriction.
• The following applies for the "Flow" and "Totalizer" Transducer Blocks: With the "OOS" operating
mode, the process variables are updated but the status of the output value OUT (AI Block) changes
to "BAD".
• If problems occur during the configuration of the function blocks → see Operating Instructions
for Proline Promag 55 FOUNDATION Fieldbus (BA126D), "Troubleshooting" section.
3.2.3 Alarm detection and processing
The Transducer Blocks do not generate any process alarms. The status of the process variables is
evaluated in the downstream Analog Input function blocks. If the Analog Input function block does
not receive an input value that can be evaluated from the "Flow" or "Totalizer" Transducer Blocks,
then a process alarm is generated. This process alarm is displayed in the BLOCK_ERR parameter of
the Analog Input function block (BLOCK_ERR = Input Failure).
The parameter BLOCK_ERR of the Transducer Blocks displays the device error that produced the
input value that could not be evaluated and thus triggered the process alarm in the Analog Input
function block.
In addition, the active device error is displayed via the "Diagnosis" Transducer Block in the
"Diagnosis - Act.Sys. Condition" parameter ( → Page 90).
For further information on rectifying errors → see Operating Instructions for Proline Promag 55
FOUNDATION Fieldbus (BA126D), "Troubleshooting" section.
3.2.4 Diagnosis
The status of the device is displayed via the following parameters specified in the FOUNDATION
Fieldbus specification:
• BLOCK_ERR
• Transducer Error
More detailed information on the current device status is displayed via the "Diagnosis" Transducer
Block in the manufacturer-specific parameter "Diag. - Act.Sys.Condition" ( → Page 90).
For further information on rectifying errors →see Operating Instructions for Proline Promag 55
FOUNDATION Fieldbus (BA126D), "Troubleshooting" section.
→ CHANNEL 1 (Analog Input function block)
→ CHANNEL 2 (Analog Input function block)
→ CHANNEL 7 (Analog Input function block)
→ CHANNEL 8 (Analog Input function block)
→ CHANNEL 9 (Analog Input function block)
3 Transducer Block
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