Rockwell Automation Publication 1715-UM001J-EN-P - December 2020
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Appendix F I/O Tag Definitions
Bit Name
Description
8 GroupFault
0 = Good
1 = Any channel or module faulted/failed
PtFault
INT
Channel fault status; one bit per channel for channels 0…15:
0 = Normal
1 = Channel is faulted/failed
Open Wire
INT
Open wire diagnostic status; one bit per channel for channels 0…15:
0 = Normal
1 = Indicates open wire detected
ShortCircuit
INT
Short circuit diagnostic status; one bit per channel for channels 0 …15:
0 = Normal
1 = Indicates short circuit detected
Indeterminate
INT
Indeterminate diagnostic status; one channel per channel for channels 0…15:
0 = Normal
1 = Indicates indeterminate input voltage detected
Timestamps
AB:1715:TIMESTAMP[16]
TIMESTAMP array
One element per channel.
NB each timestamp is equivalent DINT[2] representing a 64-bit value (number
of microseconds since 1
st
January 1970). An AOI
‘SystemTime_64bit_Interpreted’ is available to convert such timestamps to a
more manageable format with individual values for Day, month, year etc.
Table 64 - 16-channel Digital Input, Simplex
Tag Name
Data Type
Definition
Table 65 - 16-channel Digital Input, Duplex
Tag Name
Data Type
Definition
Fault
DINT, Binary
Module fault bit:
0 when one module is present and reporting valid data, OxFFF_FFFF when no
modules are present, no Logix connection exists, or reported data is invalid.
Data
INT
Input state, one bit per channel for channels 0…15:
0 = Off/de-energized
1 = On, energized
Status
DINT, bit-field
Redundancy and power status:
Bit
Name
Description
0
ModAFault
0 = Good
1 = Fault or module not present
1
ModBFault
0 = Good
1 = Fault or module not present
8
GroupFault
0 = Good
1 = Any channel or module faulted/failed
9
ModAGroupFault
0 = Good
1 = Any channel or module A faulted/failed
10
ModBGroupFault
0 = Good
1 = Any channel or Module B faulted/failed
PtFault
INT
Channel fault status; one bit per channel for channels 0…15:
0 = Normal
1 = Channel is faulted/failed
Open Wire
INT
Open wire diagnostic status; one bit per channel for channels 0…15:
0 = Normal
1 = Indicates open wire detected
ShortCircuit
INT
Short circuit diagnostic status; one bit per channel for channels 0…15:
0 = Normal
1 = Indicates short circuit detected
Indeterminate
INT
Indeterminate diagnostic status; one channel per channel for channels 0…15: