Appendix B
Comparison of System Program Functions
118
Differences from System Program Version 3.0
The following table shows the differences between system program version 3.0 (described in the manuals for the
“-V2” PTs) and system program version 2.1 (used with the DeviceNet Interface Unit).
Item
Ver. 2.1 (used with the DeviceNet
Interface Unit)
Ver. 3.0
Accessible CS1-series data areas
There are limitations.
Only the current bank of the EM Area
can be accessed.
Access is expanded.
The accessible CS1-series data areas
include areas such as specific EM Area
banks and Task Flags.
Calculation function
Not available.
All calculations must be performed by
the PC program.
Available.
Arithmetic expressions set in advance
with the Support Tool can be calculated
in the PT. This function can significantly
reduce the load on the PC program.
Interlock
Not available.
Operation of inputs can be
enabled/disabled according to the status
of specified PC bits (interlock bits.)
The interlock function can be set for
individual touch switches, numeral
inputs, thumbwheel inputs, and
character string inputs. This function can
significantly reduce the load on the PC
program.
Multiple rows of guide characters
(labels)
Not allowed (1 row only.)
Multiple rows can be displayed by
combining fixed character strings.
Multiple rows of guide characters can be
set. Up to 256 characters can be set.
ON/OFF switching guide
characters (labels)
Not allowed (always the same whether
ON or OFF.)
Substituted by image libraries, etc.
Different character strings can be
displayed when the lamp bit is ON and
OFF.
Numeral and character-string
displaying guide characters
(labels)
Not allowed.
Can be achieved by stacking numeral
displays and character-string displays.
The specified memory table can be
referenced and the numeral or character
string can be displayed as guide
characters.
Device Monitor function
Not available.
Available.
The contents of PC words can be listed
and PVs can be displayed or changed
by touch-switch operations. It is also
possible to specify and call a screen by
its screen number while the PT is
operating, just like the Programming
Console function.
Screen data compatibility from
NT30/NT620 PTs to NT31/NT631
PTs.
Major data revisions are required to
convert screen data from the
NT30/NT620 Series to the NT31/NT631
Series.
The NT30/620 compatible mode
provides compatibility with the earlier
NT30/620 PTs, such as insertion of
image and library into the text displays
or labels of lamps and touch switches.
This mode greatly reduces the amount
of screen data editing required to
convert data from the NT30/NT620
Series to the NT31/NT631 Series.