
Quick Installation Guide
00825-0100-4697, Rev DB
September 2011
Rosemount 848T
8
STEP 4: VERIFY TRANSMITTER CONFIGURATION
Each FOUNDATION
™
fieldbus host or configuration tool has a different way of displaying and
performing configurations. Some use Device Descriptions (DD) or DD wizards for
configuration and to display data consistently across platforms. There is no requirement that
a host or configuration tool support these features.
The following is the minimum configuration requirement for a temperature measurement.
This guide is designed for systems not using DD wizards. For a complete list of parameters
and configuration information refer to the Rosemount 848T Reference Manual (Document
No. 00809-0100-4697).
Sensor Transducer Block
This block contains temperature measurement data for all eight sensor inputs. It also
includes information about sensor type, engineering units, damping, and diagnostics. At a
minimum, verify the parameters in Table 1 for each sensor in the transducer block.
Table 1. Sensor Transducer Block Parameters
Analog Input (AI) Function Blocks
The AI block processes field device measurements and makes the outputs available to other
function blocks. The output value of the AI block is in engineering units and contains a status
indicating the quality of the measurements. Use the Channel number to define the variable
that the AI block processes. At a minimum, verify the parameters of the AI blocks in Table 2.
The 848T has a removable commissioning tag that contains both the
Device ID (the unique code that identifies a particular device in the
absence of a device tag) and a space to record the device tag (the
operational identification for the device as defined by the Piping and
Instrumentation Diagram (P&ID)).
When commissioning more than one device on a F
OUNDATION fieldbus
segment, it can be difficult to identify which device is at a particular
location. The removable tag aids in this process by linking the Device ID
to physical location. The installer should note the physical location of the
transmitter on both the upper and lower location of the commissioning
tag. The bottom portion should be torn off for each device on the
segment and used for commissioning the segment in the control system.
Parameter Comments
Typical Configuration
Configure Input
SENSOR_1_CONFIG.SENSOR example: “PT100_A_385: 3-wire”
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