Status values for 2085-IF4

Status (ST) is a read-only variable that indicates the actual non-configured state of the respective tag.
The ST variable is useful when using Forcing. After you force a tag to a certain state, the ST variable still shows the actual non-configured state of the tag. With the ST variable, you can:
  • Systematically compare the respective DO and ST status to find out any mismatch between what the program is sending and what the controller actually should be sending.
  • Programmatically check whether forcing is overriding the program scan and turning the physical value OFF.
  • If a tag status is forced, notice the mismatch of "Value" and "Physical Value", together with "Force", when the controller is connected.
Status values for the 2085-IF4 expansion module
Status Variable
Bit (0
–
15)
Description
_IO_Xx_ST_00
0 to 15
Module status value 0.
Bits:
  • 0 to 7: Diagnostic
  • 8 to 11: Reserved
  • 12: Diagnostic
  • 13: Cyclic Redundancy Check (CRC) error
  • 14: General Fault (GF)
  • 15: Power Up (PU)
_IO_Xx_ST_01
0 to 15
Module status value 1.
Bits:
  • 0: Channel 0 fault (S0)
  • 1: Channel 0 data error (DE0)
  • 2: Channel 0 low alarm (LA0)
  • 3: Channel 0 high alarm (HA0)
  • 4: Channel 0 low low alarm (LLA0)
  • 5: Channel 0 high high alarm (HHA0)
  • 6 to 7: Reserved
  • 8: Chanel 1 fault (S1)
  • 9: Channel 1 data error (DE1)
  • 10: Channel 1 low alarm (LA1)
  • 11: Channel 1 high alarm (HA1)
  • 12: Channel 1 low low alarm (LLA1)
  • 13: Channel 1 high high alarm (HHA1)
  • 14 to 15: Reserved
_IO_Xx_ST_02
0 to 15
Module status value 2.
Bits:
  • 0: Channel 2 fault (S2)
  • 1: Channel 2 data error (DE2)
  • 2: Channel 2 low alarm (LA2)
  • 3: Channel 2 high alarm (HA2)
  • 4: Channel 2 low low alarm (LLA2)
  • 5: Channel 2 high high alarm (HHA2)
  • 6 to 7: Reserved
  • 8: Chanel 3 fault (S3)
  • 9: Channel 3 data error (DE3)
  • 10: Channel 3 low alarm (LA3)
  • 11: Channel 3 high alarm (HA3)
  • 12: Channel 3 low low alarm (LLA3)
  • 13: Channel 3 high high alarm (HHA3)
  • 14 to 15: Reserved
Provide Feedback
Have questions or feedback about this documentation? Please submit your feedback here.
Normal