Maple Systems MAPware-7000 - Manual (Page 191)

MAPware-7000 Programming Manual 191
1010-1040, Rev. 02
1- If the value in the monitored target register is not a valid BCD number, a dollar sign
‘$’ is displayed.
2- Floating Point format is based upon the IEEE 754 standard for 32-bit single precision
numbers. A maximum of nine digits is supported. Values are rounded to the
nearest decimal point (ex: if Format: Digits After Decimal Point is set to 1 digit, then
floating point number 1.52 would be displayed as 1.5 and 1.56 would be displayed
as 1.6) shows the current state displayed on the Multiple Bar Graphs for editing.

Number of Tags – this is the total number of tags or channels that are represented on
the historical trend graph. A channel is a line on the graph that represents the value of a
target register at a particular point in time. Range is 1 to 4 tags.

Selected Tag Color – this is the color of the channel line for the selected tag (see Tag
below). Click on the
button to display the color palette and select a color.

Tag – After Number of Tags is specified above, select each Tag from the pull-down list
box to configure the target Tag Address and color of the trend line.

Tag Address (List Qa) – this is the address of target register that is read by the HMC to
determine the historical trend graph level. Note: Only tag addresses that have been
configured in the Data Logger are displayed as options. Also note that the Historical
Trend Graph does not read the current value in the tag address- to do that you need to
use a Real-time Historical Trend Graph. Rather, upon displaying the screen with the
Historical Trend Graph, the HMC will read the recorded data values for the selected tag
address in the DataLog memory according to the Start/End Time Tag Settings below. If
the DataLogger has no data recorded for the specified tag address during the Start/End
Times selected, than no trend line is drawn. The Historical Trend Graph is updated only
when the screen is ‘refreshed’ using a function key or Multi-State button configured as
Key’s Specific Task-Refresh All Trends or when the screen is initially displayed.

Tag Name (List Qb) – this is the name given to the tagged register in the Tag Database.

Time Scale Properties section – determines the layout of the X time axis.

Number of Grids – indicate the total number of grids that indicate time intervals (along
the x-axis) on the trend graph. Range is 1 to 10.

Scale – enable to display the time scale.

Scale Color – Click on the button to display the color palette and select a color to
display the time scale.

Start/End Time Tags settings – configure the target registers that the HMC monitors to
determine the Start and End time scales (both Date and Time) that are represented on
the Historical Trend graph. Click on the
button to display the Start/End Time Tag
Settings dialog box. Each Start and End time requires the following:
o DD- a 16-bit register that is read to determine the day of the month (range: 1-
31)
o MM- a 16-bit register that is read to determine the month of the year (range: 1-
12)
o YY- a 16-bit register that is read to determine the year (range: 00-99)
o hh- a 16-bit register that is read to determine the hour (range: 0-23)
o mm- a 16-bit register that is read to determine the minute (range: 0-59)
o ss- a 16-bit register that is read to determine the second (range: 0-59)

Value Scale Properties – sets the attributes for the Y-axis

Maximum – options are Max or Tag. Select Max to configure a pre-defined maximum
value range on the trend graph. Use Tag to configure a PLC target address continuously
read by the HMC to determine the maximum range used by the trend graph.