Model 3095FB Multivariable Transmitter with Modbus Protocol
Modbus Protocol Guide
Page 41 of 79
5.3.2 Scaled Integer Error Conditions
If an error occurs the scaled output will be set to either y
2
+ 1 (Method 1) or maximum inte-
ger + 1 (Method 2).
5.3.2.1 General Exceptions that Apply to All Scaled Outputs
If the calculated scaled output is greater than y
2
(Method 1) or less than y
1
(Method 1) the
value returned is y
2
+ 1.
If the calculated scaled output is greater than the maximum integer (Method 2) or less than
zero (Method 2) the value returned is maximum integer + 1.
5.3.2.2 Exceptions that Apply to DP
The following exceptions apply only to the differential pressure.
Table 5-11 General Sensor Errors
Attributes Description
AD ST signal is above Upper Internal Limit
AD ST signal is below Lower Internal Limit
AD Sensor module is NOT updating
AD Sensor microprocessor does not respond
Table 5-12 DP Exceptions
Attributes Description
AD DP signal above Upper Range Limit + 10%
W DP signal above Upper Range Limit
W DP signal below Lower Range Limit
AD DP signal below Lower Range Limit - 10%
AD SP signal above Upper Range Limit + 10%
AD SP signal below Lower Range Limit - 10%
AD SP sensor shorted
AD SP signal is unreasonable - open bridge