Rockwell Automation 1732E-OB8M8SR EtherNet/IP Dual Port 8-Point SOE Input and Scheduled Output Modules UM - Manual (Page 120)

110 Rockwell Automation Publication 1732E-UM003B-EN-E - March 2014
Appendix C Data Tables
189 Reserved (Must be 0)
190…191 Pad (16 Bits)
192…195 Events Queued Count (32 Bits)
196 Reserved (Must be 0) Synched to
Master
Where: NewData – Set when new data has been detected upon that input and an unread event is queued for that point. Cleared
when all the time stamps for that point have been acknowledged or if the corresponding NewDataAck bit transitions from
0…1.
EventOv – Set when the module begins to lose events for that input point. Events may be lost when new events are either
ignored or overwriting existing events which have yet to be acknowledged. Cleared when the corresponding NewDataAck bit
transitions from 0…1.
EventNumber – Running count of events which increments by one each new event. Allows controller to check for a new
event by comparing this number to the last retrieved event. Acknowledge of receipt of event which causes next event to
display is to write this EventNumber back into the output data EventAck field. If the EventNumber reaches it maximum value
and rolls over it should roll-over to 1 not 0.
Input Time Stamp – Timestamp corresponding to when an event was recorded at one of the modules inputs.
Local Clock Offset – The offset from the local clock to the system time. This value is useful for detecting steps in time. This
value will update when a PTP update is received.
Offset Time Stamp – The time when the PTP message was received that caused the Local Clock Offset to update. This value
will initially be zero and the first timestamp will occur when the module synchronizes with the master clock.
Grandmaster Clock ID – The ID number of the Grandmaster clock the module is synchronized to.
EventPoint – Which of the 8 channels the event was recorded on (values of 0…7).
EventData – Bit indicating if event was a change of state to a 1 or 0.
EventsQueuedCount – How many events are currently queued up which have not been read.
Synced to Master – 1 indicates the module is synchronized with a master clock. 0 indicates it is not.
In order to acknowledge receipt of an event the user must write this EventNumber back into the output data EventAck field.
The EventAck is in consumed assembly 159. When the users returns the EventAck, then ack all time stamps in this assembly
that are less than or equal to the EventAck.
Time stamps will be zero at power-up and after a time stamp is acknowledged. The time base and epoch of the timestamps are
determined by the grand-master clock of the system.
All data listed in this assembly is in Little Endian format, LSB first, in increasing byte order to MSByte last.
Produced Assembly Instance 158 Data Structure
Consumed
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Consumed Assembly Instance 159 Data Structure
Consumed
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0…3 Event Ack (32 Bits)
4 NewData
Ack7 NewData
Ack7 NewData
Ack7 NewData
Ack7 NewData
Ack7 NewData
Ack7 NewData
Ack7 NewData
Ack7
5 Point to Retrieve
6 Reserved (Ignore) Retrieve by
Point Reset Events