Delta Electronics DVP15MC11T Operation Manual page 274

Parameter name
Active TRUE when the instruction is being executed.
Error TRUE while there is an error.
Contains the error code when an error occurs. Please
ErrorID
refer to section 12.2 for the corresponding error ID.

Output Update Timing
Parameter Name
Done
Busy
Active
Error
Output Update Timing Chart

E xec ute
Done
Bus y
Ac tive
Error
E rro rID
DesP tr
Case 1： When Execute changes from FALSE to TRUE, Busy and Active change to TRUE and one
period later, Done changes to TRUE. Meanwhile Busy and Active change to FALSE and DesPtr
shows the corrsponding data in CR registers of the extension module. When Execute changes
from TRUE to FALSE, Done changes from TRUE to FALSE and the value of DesPtr is cleared
to 0.
Case 2： When an error occurs as Execute is TRUE, Error changes from FALSE to TRUE and ErrorID
shows corresponding error codes. Error changes from TRUE to FALSE and the value in ErrorID
is cleared to 0 after Execute changes from TRUE to FALSE.

Function Explanation
The FROM instruction can be applied to read the values in the registers of the left-side and righ-side
extension modules.
The position of the left-side and right-side module is specified by StationID. The Station ID range of right-side
module is 0~7. 0 represents the first extension analog module at the right side and 7 means the eight
extension analog module at the right side. The Station ID range of left-side modules is 100~107. 100
represents the first extension module at the left side and 107 means the eight extension module at the left
Function
Timing for changing to TRUE
 When the reading of the
parameter values is finished.
 When Execute changes to TRUE
 When the instruction execution
begins
 When an error occurs in the
instruction execution or the input
parameters for the instruction are
illegal.
Case 1
Chapter 8 Logic Instructions
Data type Valid range
BOOL TRUE / FALSE
BOOL TRUE / FALSE
WORD
Timing for changing to FALSE
 When Execute changes from
TRUE to FALSE after the
instruction execution is completed.
 When Done changes from FALSE
to TRUE
 When Error changes to TRUE.
 When Error changes to TRUE.
 When Done changes from FALSE
to TRUE.
 When Execute changes from
TRUE to FALSE
Cas e 2
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