Programming Your Application
6-1
590+ Series DC Digital Converter
6
P
ROGRAMMING
Y
OUR
A
PPLICATION
Programming with Block Diagrams
You can program the Converter for specific applications using the MMI or suitable
programming tool, such as “ConfigEd Lite” which is SSD Drives’ block programming
software.
The Converter is supplied with a basic set-up which can be used as a starting point for
application-specific programming. This programming could simply involve the inputting of
parameter values, or it may require the making or breaking of programmable links, which is a
feature of this unit.
Block diagram programming provides a visual method of planning the software to suit your
application. The basic block diagram is provided in Chapter 15 and shows the software
connections consisting of
function blocks
and
links:
x
Each function block contains the parameters required for setting-up a particular
processing feature. Sometimes more than one function block is provided for a feature, i.e.
for multiple digital inputs.
x
Software links are used to connect the function blocks. Each link transfers the value of an
output parameter to an input parameter of another (or the same) function block.
Each individual block is a processing feature: it takes the input parameter, processes the
information, and makes the result available as one or more output parameters.
Modifying a Block Diagram
Setup and Configuration Modes
There are two modes of operation used while modifying a block
diagram:
Setup
and C
onfiguration
modes.
The CONFIGURE ENABLE command is used to toggle between
these two modes of operation.
Setup Mode (CONFIGURE ENABLE = DISABLED)
In setup mode you can change parameter values. The Converter can be running or
stopped. Note that some parameters can only be changed when the Converter is
stopped. It is not possible to modify the internal links when the Converter is in setup
mode.
Configuration Mode (CONFIGURE ENABLE = ENABLED)
In the configuration mode you can modify connections between the function blocks
in the drive. You can also change parameter values, as above. The Converter cannot
run in this mode. Output values are not updated.
Making and Breaking Function Block Connections
Links can be changed, added or deleted from a block diagram whilst in the Configuration
mode. There are 12 general-purpose links available, each has its own identification number
(“link” number). You make a link by setting the link’s “source” and “destination” tags to be
the two parameter tag numbers to be linked. The outputs of function blocks are not updated
whilst in this mode.
Note:
Links 11 and 12 can be configured to perform one of a number of basic functions upon
the source and/or auxiliary source tag values, to be output at the selected destination
tag.
Special Links
In addition to these 12 general-purpose links, there are some links permanently associated with
particular input parameters. It is only necessary to enter the source tag number to activate
these links. Similarly, there are some links permanently associated with particular output
parameters. It is only necessary to enter the destination tag number to activate these links.
All these links may be found in the SYSTEM::CONFIGURE I/O menu.
MMI Menu Map
1
SYSTEM
2
CONFIGURE I/O
CONFIGURE ENABLE
DEFAULT