Execute_List_Pos - Scanlab RTC 5 PC Interface Board Installation And Operation Manual

Ctrl Command execute_list_pos
Function starts list execution ("List 1" or "List 2") at the specified position.
Call
execute_list_pos( ListNo, Pos )
Parameters
ListNo
Pos
Comments • The command will be ignored
status or PAUSED status is currently set (list is being processed or has been halted via
pause_list
execute_list_pos is only executed with a delay (after INTERNAL-BUSY has been reset
again). No checks are performed to determine if a list is currently being loaded. During
list processing, the other list (or even the same list) can be simultaneously reloaded (also
see "List Handling", page
• Programs in the protected area ("List 3") can't be directly executed via
execute_list_pos. They can only be called from a list ("List 1" or "List 2") as a subrou-
tine. Alternatively, the corresponding area can be assigned via
"List 2".
• Uneven ListNo values cause "List 1" to be executed; otherwise "List 2" will be
executed. This allows automatically generated continuous list changing via an incre-
mented count.
• If "List 2" has not been assigned memory (Mem2 = 0, see config_list) then "List 1" will
be opened.
• If Pos is specified as being larger than the memory area of the respective list (Pos > Mem1
or Pos > Mem2), then Pos will be set to 0.
• The BUSY list status of the selected list is set and the BUSY list status of the other corre-
sponding list is reset (see read_status). The BUSY list execution status (see get_status)
is set.
• Execution stops when a
area is reached without encountering a
continue at the beginning of the same list area instead of with the next list. The output
pointer will remain in the active list area unless a
encountered and an
For both lists to be treated as a single list, you must set the configuration appropriately:
e.g.( Mem1+Mem2, 0 ).
• If a home jump (defined with
set_end_of_list, then execute_list_pos will lead to a corresponding home return (the
INTERNAL-BUSY status is set while the home return is executed).
• The execute_list_pos command triggers a flush of the list input buffer (see
even if the start was unsuccessful.
• execute_list_pos also covers the specialized variants execute_list_1, execute_list_2,
execute_list
® ®
RTC 4 RTC 5 new command
References execute_list, execute_at_pointer,
®
RTC 5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
number of the list to be executed as an unsigned 32-bit value;
permissible values: [uneven: "List 1", even: "List 2"]
address of the first list command to be executed (offset relative to the start of
the respective list) as an unsigned 32-bit value; allowed range: [0 ... (2
(get_error
or set_wait). If the board's INTERNAL-BUSY status is currently set,
71).
set_end_of_list
auto_change_pos
home_position
and execute_at_pointer.
set_start_list_pos
return value = RTC5_BUSY) if the board's BUSY
config_list
command is encountered. If the end of a list
set_end_of_list command, then execution will
set_end_of_list command was
or start_loop command was previously issued.
or home_position_xyz) was executed via
20
–1)]
to "List 1" or
page 71)
257