Parker 590+ series, Product Manual

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Programming
D-7
DC590+ Series DC Digital Drive
Compatibility with Earlier Versions of Firmware
Version 8.x and onwards of the 590P is upwardly compatible with earlier firmware versions of the 590P. It will accept and run existing configurations
when downloaded via UDP, from DSELite or from a saved copy in the operator station’s memory. These earlier versions of firmware will not however
accept a configuration designed for use with Version 8.x firmware and onwards.
The implementation of the function block diagram destination links and source links is subtly different in version 8.x and onwards. All links have been
rationalised to allow connection of any parameter to any input parameter. These enhancements will not interfere with operation of earlier
configurations. The enhancements are designed to further improve the flexibility of the function block diagram.
In general, all “output” links have been replaced with the combination of a new output parameter and a new general purpose link. Similarly, all “input”
links have been replaced with the combination of a new input parameter and a new general purpose link. Where a suitable output or input parameter
already existed there was no need to create a new one, (for example, Configure 5703::Scaled Input already existed as a parameter).
As an illustration, consider the operation of Digital Input 2. Prior to Version 8.1 the output value was not available as an accessible parameter. It could
be wired to an input parameter using its dedicated destination tag. By default it was connected to tag 118, RAMP HOLD.
In the revised implementation, the output value is available as a new parameter, OUTPUT. This may be connected to any input parameter using any
general purpose link. By default, Link 21 is used to connect OUTPUT (tag 681) to RAMP HOLD (tag 118).