Emerson Rosemount 644H Quick Start Manual page 10

Quick Start Guide
Table 2. AI Block Parameters
Parameter
CHANNEL
LIN_TYPE
PV_SCALE
OUT_SCALE
HI_HI_LIM
HI_LIM
LO_LIM
LO_LO_LIM
4.2 Physical block
The Physical Block encompasses all parameters and functions required to identify
the hardware and software (revision numbers, status values, device address etc.)
of the device. The IDENT_NUMBER_SELECTOR parameter is used to change how
the host sees the device.
Table 3. Physical Block Parameter
Parameter
IDENT_NUMBER
_SELECTOR
4.3 Host integration
Control host (Class 1)
The Rosemount 644 device utilizes Condensed Status as recommended by the
Profile 3.02 specification and NE 107. See manual for Condensed Status bit
assignment information.
The appropriate GSD file must be loaded on the control host - Rosemount 644
specific (rmt4053.gsd) or Profile 3.02 Generic (pa139700.gsd). These files can be
found on www.emersonprocess.com\rosemount or www.profibus.com.
Configuration host (Class 2)
The appropriate DD or DTM file must be installed in the configuration host. These
files can be found at www.emersonprocess.com/rosemount.
10
The CHANNEL parameter defines which transducer block measurement is used by
the AI block. In the 644 Transmitter, the channel will always be set to Sensor 1.
There is no other option for this variable.
This parameter defines the relationship between the block input and the block
output. Since the 644 Transmitter does not require linearization, this parameter
will always be set to No Linearization. This means that the AI block will only apply
scaling, filtering, and limit checking to the input value.
Set desired measurement range and units. Units must be one of the following:
For "DIRECT", set OUT_SCALE to match PV_SCALE
Must be within the range defined by "OUT_SCALE"
Can be changed to Profile Specific, Manufacturer Specific or Adaptation Mode.
Default to Adaptation Mode the Host chooses which file (GSD) it wants to use;
whether to view the device GSD file in a generic or a manufacturer specific way.
Profile Specific mode shows the generic GSD associated with the Profibus Profile
version (9700) of the device and Manufacturer Specific Mode displays the GSD file
with parameters specific to the Rosemount 644.
Comments
mV, Ohms, °C, °F, °R, K
Process alarms.
Comments
January 2016