Rockwell Automation T7832 ICS Regent+Plus Historian Packages for Winterpret - Manual (Page 3)

Historian Package for W INTERPRET (T7832)
P D - 7 0 4 2 M a r c h , 0 6
3
Sequence of Events and Process Historian function blocks.
With this additional software you can create historian
function blocks by opening a project, opening a program and
opening (or creating) a function block.
For an overview about Regent application programs and
function blocks and how to create them using W
INTERPRET ,
refer to Section 5, Working with Programs and Function
Blocks in the Regent User’s Guide.
Sequence of Events Function Blocks
Sequence of events function blocks let you record changes of
state in discrete I/O points and shared control relays. Using
these function blocks you can define a set of I/O points and
shared variables for which changes are to be monitored and
recorded. The points that you configure for SOE recording are
called Event Entries. The record of these events is stored in
the Regent's memory. After events are recorded, W
INTERPRET
can read them from the Regent, save them, and print them.
Each sequence of events function block has a Start contact to
define when event recording is to begin and end, a Clear
contact to define when the event buffer is to be cleared, and a
size value to define the size of the event buffer. There is also a
Count register for monitoring the amount of the event buffer
currently filled.
The event entries for a sequence of events function block must
be discrete I/O points or shared control relays (including
system control relays).
When an application program containing a Sequence of
Events function block is loaded and running, and the SOE
Start contact is on, the events configured are monitored for
state changes. When an event changes state, an entry is
made in the SOE buffer which records the time stamp, and the
status (on/off) of the event. As subsequent events occur,
additional entries are stored in the SOE buffer. When the
SOE buffer is full, new events overwrite the oldest events in
the SOE buffer.