Universal commands
18
KH 8384-3 EN
Byte
Bit
Message description
Local operation
5
Bit 0
Course of end position
–
Bit 1
Positioner/valve mechanical connection
–
Bit 2
Range
–
Bit 3
Partial stroke test (PST)/full stroke test (FST)
–
Bit 4
Temperature monitoring
–
Bit 5
–
–
Bit 6
–
–
Bit 7
–
–
2)
Concerning bytes 18 to 33: NAMUR status messages of the extended diagnostics
Byte
Bit
Message description
17
Bit 0
No message
Bit 1
Maintenance required
Bit 2
Maintenance demanded
Bit 3
Maintenance alarm
Bit 7
Function check
18
Bit 0
Supply pressure – OK
Bit 1
Supply pressure – Perhaps modified (TEST)
Bit 2
Supply pressure – Perhaps not enough (TEST)
Bit 3
Supply pressure – Perhaps not enough
Bit 4
Supply pressure – Working at full capacity
Bit 5
Supply pressure – Working at full capacity (TEST)
Bit 6
Supply pressure – Perhaps modified
19
Bit 0
Actuator springs – OK
Bit 1
Actuator springs – Perhaps spring stiffness reduced (spring failure) (TEST)
Bit 2
Actuator springs – Perhaps bias reduced (TEST)
Bit 3
Actuator springs – Perhaps bias increased (TEST)
Bit 4
Working at full capacity
Bit 5
Working at full capacity (TEST)