Rosemount 3095FB - Process Variable Default Values (PT)

Model 3095FB Multivariable Transmitter with Modbus Protocol
Modbus Protocol Guide
Page 43 of 79
5.5 Process Variable Default Values (PT)
The 3095FB allows for the enabling and disabling of the PT input. To disable the PT input
turn the RTD present coil OFF. Likewise to enable the PT input turn the RTD present coil ON.
If the RTD present coil is OFF the User Entered PT Value is used.
When entering a User Entered PT Value the current PT unit code is used. If the current PT unit
code is
o
F then entering a floating point value of 60 in the register pair 455, 456 would set the
User Entered PT Value to 60
o
F. If at a later time the PT unit code is changed to
o
C then the
User Entered PT Value will read as 15.556
o
C.
Table 5-15 Untrimmed and Corrected Process Variables
Modbus Access
DESCRIPTION
Address
Address
Type
Attributes
Functional
Area
Data / Control
0076,
0077
Input reg-
ister
RO PVs
Untrimmed
and Cor-
rected
DP (3 bytes)
0078,
0079
Input reg-
ister
RO SP (3 bytes)
0080,
0081
Input reg-
ister
RO PT (3 bytes)
*Attributes: R/W = Read/Write, RO = Read Only, WP = Write Protected
**These registers are available at multiple Modbus addresses (see Section 2.3 located in
the Modbus Protocol Guide)