7.25
Date Code 20060320 Instruction Manual SEL-311C Relay
Inputs, Outputs, Timers, and Other Control Logic
Multiple Setting Groups
Set TGR long enough to allow the selector switch to pass through
intermediate positions without changing the active setting group, until the
switch rests on the desired setting group position.
Selector Switch Switched to Position 5
Refer to Figure 7.23.
If the selector switch is rested on position 5 in Figure 7.22, setting Group 5
becomes the active setting group (after qualifying time setting TGR; Relay
Word bit SG5 = logical 1). Inputs IN101 and IN103 are energized and IN102 is de-
energized:
SS5 = IN103 * !IN102 * IN101 = IN103 * NOT(IN102) * IN101 = logical 1 *
NOT(logical 0) * logical 1 = logical 1
To get from position 5 to position REMOTE on the selector switch, the switch
passes through the positions 4, 3, 2, and 1. The switch is only briefly in the
these positions, but not long enough to be qualified by time setting TGR in
order to change the active setting group to any one of these setting groups.
Selector Switch Now Rests on Position REMOTE
Refer to Figure 7.23.
If the selector switch is rested on position REMOTE, all inputs IN101, IN102,
and IN103 are de-energized and all settings SS1–SS6 in Table 7.8 are at
logical 0. The last active setting group (Group 5 in this example) remains the
active setting group (Relay Word bit SG5 = logical 1).
With settings SS1 through SS6 all at logical 0, the serial port GROUP
command or the front-panel {GROUP} pushbutton can be used to switch the
active setting group from Group 5, in this example, to another desired setting
group.
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