Maple Systems MAPware-7000 User Manual
Page 242
242
MAPware-7000 Programming Manual
1010-1040, Rev. 02
Logging mode: this setting determines how and when the HMC collects data. Each
group can have a different logging mode. There are six options for the logging mode:
o Power up- collects data immediately after the HMC has initialized, according to
the time value entered into ‘Log at Every’ field. Therefore, if the value entered
into this field is 00:00:10, then the HMC records the data every ten seconds
after initial power-up.
o
Start/Stop Time- this option is used if you wish to collect data during a specific
time period every day. The starting time is entered in the Logger Start Time
field and end time in the Logger Stop Time field. Between these time periods,
the HMC collects data continuously according to the frequency specified in the
Log at Every field.
o
Key Task- the Start and Stop time are controlled by membrane function keys,
the Multi-Task Single-State button, or the Multi-Task Multi-State button (using
the Key Specific Task option). The frequency of data collection is specified using
the Log at Every field.
o Logging with Run Time Frequency – the frequency of capturing data is
determined by the current value in a 16 bit memory register (can be internal or
a PLC register). This feature allows you to vary the capture frequency during
operation. The HMC interprets the value in the Frequency Tag as minutes (this
value must be > 30). Note: This mode is only available for Group1.
o
Bit Task- the Start and Stop time is controlled by one of four predefined system
bits (S0028-S0031) located in the tag database. The frequency of data collection
is specified using the Log at Every field.
o
Event Based- data logging is controlled using a ‘logging bit’ which is any HMC
internal memory bit (external PLC bits not allowed) configured in the task
database. The data is captured based upon the logging bit changing state
according to one of the following three options: Positive Edge (transition from 0
to 1), Negative Edge (transition from 1 to 0), and Both Edges.
Frequency Tag (Logging with Run Time Frequency mode): This is the tag register
(internal or PLC) used to determine how often to capture the data.
o
Logging Bit (Event Based mode): this is the tag bit (internal only) that
determines when data is captured.
Log at Every: this is the time interval or frequency of data capture used by Power Up,
Start/Stop Time, Key Task, and Bit Task modes.
Logger Start Time (Start/Stop mode): this is the set time at which the Data Logger starts
capturing data (frequency based upon the Log at Every setting).
o Logging Event (Event Based mode): this is the ‘event’ that triggers the Data
Logger to capture data. Options are Positive Edge (capture when bit transitions
from Off to On), Negative Edge (when bit transitions from On to Off), and Both.
Logger Stop Time (Start/Stop mode): same as Start Time above, except this is when the
Data Logger stops capturing the data.
Defined Tags: this list displays all of the tags available in the tag database which are the
same size (ex 2 Byte Int) as the Data Type selected in the General section. Scroll through
the tags until you find the one you wish to use. Click the tag to highlight it, and then click
the Add button to move the selected tag over to the Tags to be Logged list.
Tags to be logged: this is the list of tags that the selected data group uses to capture and
record data. A maximum of 30 tags is allowed per group. Note: to remove a tag from