Signal Type Description
Hxx_HwSwRev Integer
Byte 0 - Field device software revision
Byte 1 - Field device hardware revision
Hxx_mA
†
Float
Field Parm 1 – current reading of the primary signal
Hxx_PV
†
Float
Field Device Specific Control Parm 2 - Primary field device value
Hxx_SV
†
Float
Field Device Specific Control Parm 3 - Secondary value
Hxx_TV
†
Float
Field Device Specific Control Parm 4 -Third value
Hxx_FV
†
Float
Field Device Specific Control Parm 5 -Fourth value
†
To view these variables, the Hart_CtrlVars parameter must have a value greater than zero.
7.12.12 HART Extended Status
The extended status bits are device-specific, and can be interrogated by using an AMS system. In general, the status bits are
grouped as follows:
• Bytes 0-5: Device specific status
• Byte 6: Extended Device Status
• Byte 7: Device Operating Mode
• Byte 8: Standardize Status 0
• Byte 9: Standardize Status 1
• Byte 10: Analog Channel Saturated
• Byte 11: Standardize Status 2
• Byte 12: Standardize Status 3
• Byte 13: Analog Channel Fixed
• Bytes 14-26: Device-specific
Each field device supports a specific number of control parameters and extended status bits. Refer to the Field Device
documentation to determine the correct number and configure the ToolboxST application accordingly. A diagnostic alarm
message will be generated if the Field Device and ToolboxST configuration do not match.
Hxx_ExStat_1
Bit Encoded
Extended Status Bytes 1-4
Hxx_ExStat_2
Bit Encoded
Extended Status Bytes 5-8
Hxx_ExStat_3
Bit Encoded
Extended Status Bytes 9-12
Hxx_ExStat_4
Bit Encoded
Extended Status Bytes 13-16
Hxx_ExStat_5
Bit Encoded
Extended Status Bytes 17-20
Hxx_ExStat_6
Bit Encoded
Extended Status Bytes 21-24
Hxx_ExStat_7
Bit Encoded
Extended Status Bytes 25-26
212 GEH-6855_Vol_II GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
Public Information