Model 3095FB Multivariable Transmitter with Modbus Protocol
Modbus Protocol Guide
Page 52 of 79
Note: Not all of the diagnostic status bits are available as a discrete inputs. The rest of the diagnostic status bits can be read as
either an input register or as a floating point register.
8.1.1 Critical Alarm
The Critical Alarm status bit is linked to the status bits that could cause the PVs to be
incorrect. When a status bit with the Attribute A (Alarm) is set the Critical Alarm status bit
is also set.
8.1.2 Warning
The Warning status bit is linked to the status bits that signify that the transmitter may be
outside of specification. When a Status Bit with the Attribute W (Warning) is set the
Warning Status Bit is also set.
0121 0409 15 AD Sensor module is NOT updating
Not Available as Discrete
Inputs
0121
(cont)
0409
(cont)
14 Reserved
13 AD Sensor microprocessor does not respond
12 AD Sensor board eeprom burn failure
11 AD Sensor hardware incompatible with software
10 AD Sensor CRC error (Static Region)
9 AD Sensor CRC error (Dynamic Region)
8 Reserved
7 Reserved
6 Flash output board eeprom soft (recoverable)
error
5 AD Flash output board eeprom hard (non recover-
able) error
4 Flash output board eeprom time out
3 Reserved
2 AD Nonvolatile Database CRC error
1 Write Protect Status
0 Reserved
**These registers are available at multiple Modbus addresses (see Section 2.3 located in the Modbus Protocol Guide)
Table 8-1 Mapping of Status Bits to Coils, Input Registers, and Floating Point Registers
Discrete
Input
Address
Input
Register
Address
Floating
Point
Register
Address
Bit
Position
Attributes
Description
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