Model 3095FB Multivariable Transmitter with Modbus Protocol
Modbus Protocol Guide
Page 42 of 79
5.3.2.3 Exceptions that Apply to SP
The following exceptions apply only to the static pressure.
5.3.2.4 Exceptions that Apply to PT
The following exceptions apply only to the process temperature.
5.4 Untrimmed and Corrected Process Variables
A 24 bit integer will be provided that shows an integer representation of the process variables
before they have been trimmed and damped.
The formula for interpreting the 24 bit numbers is shown below.
output = (input - 8388608) * URL
7601920
Where:
input = Untrimmed and Corrected Process Variable
output = Scaled Process Variable
Table 5-13 SP Exceptions
Attributes
Description
AD
SP signal above Upper Range Limit + 10%
W
SP signal above Upper Range Limit
W
SP signal below Lower Range Limit
AD
SP signal below Lower Range Limit - 10%
AD
SP sensor shorted
AD
SP signal is unreasonable - open bridge
Table 5-14 PT Exceptions
Attributes
Description
AD
PT signal above Upper Range Limit + 10%
W
PT signal above Upper Range Limit
W
PT signal below Lower Range Limit
AD
PT signal below Lower Range Limit - 10%
Содержание 3095FB
Страница 2: ......
Страница 4: ......
Страница 8: ...Reference Manual 00809 0100 4738 Rev DA May 2006 Rosemount 3095FB 1 2 ...
Страница 144: ...Reference Manual 00809 0100 4738 Rev DA May 2006 Rosemount 3095FB 5 12 ...
Страница 168: ...Reference Manual 00809 0100 4738 Rev DA May 2006 Rosemount 3095FB C 4 ...