United Security Products AVD-45c Handbuch Seite 209

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1/03 UDC 6300 Process Controller Product Manual 195
5.18 Digital Input Option (Remote Switching), Continued
Digital input 1 and 2
combination
operation
There are five possible situations that can occur when working with
Digital Input combinations. Table 5-35 lists these situations and the
resulting action when the switch is active.
In the table:
Enabled means that the parameter is configured, and the action
will occur when the Digital Input is active
Action Disabled means that DIG IN or DIG COMB is configured but
the action cannot occur when the digital input is
active because the selected parameter is disabled.
Table 5-35 Digital Input 1 and 2 Combination Operation
DIG IN DIG COMB ACTION EXAMPLE
NONE
Any Selection No action will occur when the
Digital Input is active
ENABLED DISABLED
The DIG IN condition will occur
when the Digital Input is active.
DIG IN 1 = TO MANUAL
DIG COMB = DISABLED
Loop 1 will switch to MANUAL
when Digital Input 1 is active
ACTION
DISABLED
ENABLED
No action will occur when the
Digital Input is active
DIG IN 1 = TO PID 2
PID SETS = 1 ONLY
DIG 1 COMB = +TO SP2
LSP’S = TWO
DIG IN 1 is action disabled
because PID SETS is set to
1ONLY. Therefore, when
Digital Input 1 is active, no
action will occur even though
DIG1 COMB is enabled.
ENABLED ACTION
DISABLED
Action is indeterminate when the
Digital Input is active
DIG IN 1 = TO PID 2
PID SETS = 2KEYBD
DIG 1 COMB = +TO SP2
LSP’S =1ONLY
Because DIG 1 COMB is
action disabled, the action will
be indeterminate when DIG
IN1 is active.
ENABLED ENABLED
Both DIG IN and DIG COMB
action will occur.
Continued on next page
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