9328900990 Rev L BE1-951 Protection and Control 4-57
Figure 4-51. BESTlogic Function Element Screen, 62
At the top center of the BESTlogic Function Element screen is a pull-down menu labeled Logic. This
menu allows viewing of the BESTlogic settings for each preprogrammed logic scheme. User or custom
logic must
be selected on this menu in order to allow changes to the mode and inputs of the element.
Enable the Logic Timer function by selecting its mode of operation from the Mode pull-down menu.
To connect the element’s inputs, select the button for the corresponding input in the BESTlogic Function
Element screen. The BESTlogic Expression Builder screen will open. Select the expression type to be
used. Then, select the BESTlogic variable or series of variables to be connected to the input. Select Save
when finished to return to the BESTlogic Function Element screen. For more details on the BESTlogic
Expression Builder, see Section 7, BESTlogic Programmable Logic. Select Done when the settings have
been completely edited.
Table 4-32 summarizes the BESTlogic settings for General Purpose Logic Timers.
Table 4-32. BESTlogic Settings for General Purpose Logic Timers
Function Range/Purpose Default
Mode
0 = Disabled
1 = PU/DO
2 = One Shot Non-Retrig
3 = One Shot Retrig
4 = Oscillator
5 = Integrating
6 = Latch
0
INI Logic expression that initiates timing sequence. 0
BLK Logic expression that disables function when TRUE. 0
Example 1. Make the following settings to the 62 Logic Timer.
Figure 4-51 illustrates these settings.
Logic: User
Mode: One Shot Non-Retrig
Initiate: IN2
Block: 0
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