Lenze PM94P01C - Manual (Page 86)

PM94P01C 84
Reference
Table 25: ASSIGN
ASSIGN Assign Input As Index Bit Statement
Purpose Assign keyword causes a specified input to be assigned to a particular bit of system variable INDEX.
Up to 8 digital inputs can be assigned to the first eight bits (bits 0 - 7) of the INDEX system variable in
any order or combination. The purpose of the Assign Keyword and INDEX system Variable is to allow
the creation of a custom input word for inclusion in the user program. Good examples of it’s use are
for implementing easy selection of preset torque, velocity or position values within the user program.
Syntax ASSIGN INPUT <input name> AS BIT <bit #>
Input name (IN_A1..IN_A2 etc.)
Bit# INDEX variable bit number from 0 to 7
Remarks Assign statements typically appear at the start of the program (Initialize and set Variables section) but
can be included in other code sections with the exception of Events and the Fault Handler.
See Also VAR_IOINDEX Variable (#220)
Example:
ASSIGN INPUT IN_B1 AS BIT 0 ;index bit 0 state matches state of input B1
ASSIGN INPUT IN_B2 AS BIT 1 ;index bit 1 state matches state of input B2
Program Start:
; <statements>
If Index == 0
; If neither IN_B1 or IN_B2 is on
MoveP 0 ; Move to Absolute Position 0
Endif
If Index == 1 ; If IN_B1 is on and IN_B2 is off
MoveP 10 ; Move to Absolute Position 10
Endif
; If Index == 2 .....