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166 Micro Motion
®
Model 2400S Transmitters for PROFIBUS-DP
PROFIBUS Bus Parameters
D.2 PROFIBUS-DP data types and data type codes
Table D-1 documents the data types and data type codes used with the PROFIBUS bus parameters.
D.3 Measurement block (Slot 1)
Table D-1 PROFIBUS-DP data types
Data type Size (bytes) Description Range Code
Boolean 1 True/false • 0 = False
•1 = True
BOOL
Integer8 1 8-bit signed integer value –128 to +127 INT8
Unsigned8 1 8-bit unsigned integer value 0 to 255 USINT8
Integer16 2 16-bit signed integer value –32768 to +32767 INT16
Unsigned16 2 16-bit unsigned integer value 0 to 65535 USINT16
Integer32 4 32-bit signed integer value –2147483648 to +2147483647 INT32
Unsigned32 4 32-bit unsigned integer 0 to 4294967296 USINT32
FLOAT 4 An IEEE single precision
floating point number
–3.8E38 to +3.8E38 FLOAT
OCTET STRING Up to 128 bytes A character array of ASCII
characters
N/A STRING
BIT_ENUMERATED Up to 128 bytes An enumerated value where
each bit represents a different
enumeration
N/A B_ENUM
Table D-2 Measurement block (Slot 1)
Index Name
Data
type
Memory
class Access Comments
4 SNS_MassFlow FLOAT D (20 Hz) R Current value of mass flow process variable
5 SNS_MassFlowUnits USINT16 S R/W Mass flow measurement unit
See Table 6-2 for codes
6 SNS_Temperature FLOAT D (20 Hz) R Current value of temperature process variable
7 SNS_TemperatureUnits USINT16 S R/W Temperature measurement unit
See Table 6-6 for codes
8 SNS_Density FLOAT D (20 Hz) R Current value of density process variable
9 SNS_DensityUnits USINT16 S R/W Density measurement unit
See Table 6-5 for codes
10 SNS_VolFlow FLOAT D (20 Hz) R Current value of liquid volume flow process
variable
11 SNS_VolumeFlowUnits USINT16 S R/W Liquid volume flow measurement unit
See Table 6-3 for codes
12 SNS_DampingFlowRate FLOAT S R/W Flow damping value
0.0 to 60.0 sec
13 SNS_DampingTemp FLOAT S R/W Temperature damping value
0.0 to 80.0 sec
14 SNS_DampingDensity FLOAT S R/W Density damping value
0.0 to 60.0 sec
15 SNS_MassMeterFactor FLOAT S R/W Mass flow meter factor
0.8 to 1.2