Table 54 – Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules User Manual
Page 209
Rockwell Automation Publication 1756-UM058G-EN-P - November 2012
209
Tag Definitions
Appendix B
OffsetTimestamp
DINT
Timestamp Offset—Indicates when the CIP Sync LocalClockOffset and GrandMasterID
were last updated in CIP Sync format.
Connection = Data
Output Data = Data
or
Connection = Listen Only
Output Data = None
GrandMasterClockID
DINT
Grandmaster Clock ID—Indicates the ID of the CIP Sync Grandmaster to which the
module is synced.
Connection = Data
Output Data = Data
or
Connection = Listen Only
Output Data = None
Timestamp
DINT
Timestamp—A 64-bit CIP Sync timestamp of the last new output data or FuseBlown
event.
Connection = Data
Output Data = Data
or
Connection = Listen Only
Output Data = None
Table 54 - 1756-OB16IEFS Module Output Data Tags—Scheduled per Point Output
Name
Data
Type
Tag Definition
Module Definition
Data
BOOL
Data—Indicates the On/Off state to apply to a nonscheduled output point.
0 = Off
1 = On
Connection = Data
Output Data = Scheduled per
Point
ScheduleMask
BOOL
Schedule Mask—A mask indicating which output points are scheduled.
0 = The output point is unscheduled. The On/Off state is determined by the value in the
Data output tag.
1 = The output point is scheduled. The On/Off state is determined by the Schedule[x].Data
output tag.
Connection = Data
Output Data = Scheduled per
Point
ResetFuseBlown
BOOL
Reset Blown Fuse—Attempts to clear a blown fuse status and apply output data when
the bit transitions from Off to On.
Connection = Data
Output Data = Scheduled per
Point
TimestampOffset
DINT
Timestamp Offset—Indicates the difference between the system time and the module’s
local time. The timestamp is in CIP Sync time.
This value is typically set to zero but can be updated with the value of the SystemOffset in
the controller’s TIMESYNCHRONIZE object to enable Time Step Compensation in the
module.
Connection = Data
Output Data = Scheduled per
Point
ScheduleTimestamp
DINT
Schedule Timestamp—The baseline CIP Sync time for all schedules. The module uses
the baseline CIP Sync time combined with the offset value in the Schedule.Offset tag to
calculate the absolute time a physical output will turn On or Off.
Connection = Data
Output Data = Scheduled per
Point
Schedule[x].ID
SINT
Schedule ID—Identifies which schedule to apply to an output point.
Valid schedules: 1…32
0= No schedule
Connection = Data
Output Data = Scheduled per
Point
Schedule[x].SequenceNumber
SINT
Schedule Sequence Number—Indicates the sequence count received with a schedule.
The module recognizes a new schedule only when there is a change in sequence number.
The first message received initializes the schedule.
Connection = Data
Output Data = Scheduled per
Point
Schedule[x].OutputPointSelect
SINT
Schedule Output Point—Indicates which physical output point is associated with a
schedule. The module recognizes a new schedule only when there is a change in output
point.
The first message received initializes the schedule.
Valid values: 0…15
Connection = Data
Output Data = Scheduled per
Point
Schedule[x].Data
SINT
Schedule Data—Indicates the On/Off state to apply to an output point at the scheduled
time.
0 = Off
1 = On
Connection = Data
Output Data = Scheduled per
Point
Table 53 - 1756-OB16IEFS Module Input Data Tags—Data Output or Listen Only Connections (continued)
Name
Data Type
Tag Definition
Module Definition