User Manual

SGD-SB2025NT-TUM, Part 2
Jan 12 Page 17 INTRO TO ET
1.5.2 Releasing the Engineering Button
It should be noted that failing to release the ‘Eng’ button on either the NI or the TM ET will result in
any incomplete changes (those not applied) being held in the ET memory, therefore, subsequently
applying another change even on a different page will automatically invoke incomplete changes as
well. This is also true if a “new” NI has now got the focus of the ET. The “old” settings, still held in
memory from previous actions, will be passed to this ‘new’ unit when the ‘Apply’ button is selected.
This may result in unwanted changes occurring giving the impression that settings have changed
on their own. This feature is not a bug but is intended to provide a means of being able to replicate
the settings across many units in a quick and simple manner.
Unless using this feature to program multiple units or make multiple changes to a single unit, it is
advisable to apply changes as they are made and release the ‘Eng’ button before moving off the
page.
1.5.3 Confirming a Change
When a change is made to the NI either through the ET connected directly to the NI or remotely
through the TM ET, the action is not complete until confirmation of the change is received back at
the originator. Until the change is confirmed the state is considered to be pending.
A pending change will normally be completed in a few seconds and the interim button state will not
be very evident for long. However, if a NI is not in communication with the TM, the pending state
will last indefinitely until either communication is re-established or the change is abandoned.
This process is evident by interim colour changes of a button, slider (marker) or text in the following
way:
• Button state – IN or OUT – may show a false indication if ‘Apply’ is pending.
• Colour inside the button shows current state – Yellow = Enabled or ON and Grey = Disabled
or OFF.
• Colour outline shows change progress – Blue = pending and Black = done.
• Slider marker shows change progress – Blue = pending and Grey = done; (completion will
also be indicated by the marker moving to be level with the slider control).
• Text colour shows change progress – Blue = pending and Black = done.
In Figure 7 overleaf, the ‘Env O/P’ controls show that:
• Outputs 1 and 2 are OFF and no change is pending.
• Outputs 3 and 4 are ON and no change is pending.
• Outputs 6 and 7 have been switched from ON to OFF but the change is pending; i.e. not yet
complete.
• Outputs 7 and 8 have been switched from OFF to ON but the change is pending; i.e. not yet
complete.