
B–62073E–1/042. INTERFACE BETWEEN CNC AND PMC–NA OR NB
– 170 –
NOTE Use a parameter to select one of the addresses A, B, C, U, V, and W to specify a second
auxiliary function. However, such an address must not duplicate a controlled axis address.
(f) End signal (FIN [#1, #2])
[Classification]
Input signal
[Function] This signal reports the completion of a miscellaneous function, spindle–speed function, tool
function, second auxiliary function, or external operation function.
[Operation] For the control unit operation and procedure when this signal goes high, see the description
of “Basic send procedure” above.
The FIN signal must remain on for a certain time (the FIN signal check time, T–FIN, which is
set by a parameter) or longer. The FIN signal driven high is ignored if the FIN signal goes low
before T–FIN elapses.
NOTE 1 Only one end signal is used for all functions above. The end signal must go high after all
functions are completed.
NOTE 2 A parameter may also specify use of the FIN signal as the end signal for a canned cycle
spindle–speed function. (See Section 2.3.26.)
(g) Distribution end signals (DEN [#1, #2], IPEN [#1, #2])
[Classification]
Output signals
[Function] These signals report that all commands (such as move commands and dwell) are completed
except those miscellaneous functions, spindle–speed functions, tool functions, and so forth
that are contained in the same block and have been sent to the PMC. They also report that
the end signal from the PMC is being awaited.
Two types of signals are used, depending on the status of move command execution comple-
tion:
IPEN: This signal is sent when although move commands have been completed an
acceleration/deceleration delay and servo delay may still exist.
DEN: This signal is sent when move commands have been completed, an
acceleration/deceleration delay is eliminated, and a servo delay is reduced
to within a certain range (when the current position is in the effective area).
In general, IPEN first goes high, then DEN goes high after some delay. If no move command
is specified, IPEN and DEN go high at almost the same time.
[Output Condition]
The IPEN and DEN signals go high when:
– IPEN: The completion of miscellaneous functions, spindle–speed functions, tool
functions, and so forth is being awaited, and all other commands in the same
block are completed
– DEN: The completion of miscellaneous functions, spindle–speed functions, tool
functions, and so forth is being awaited, all other commands in the same block
are completed, and the current position is in the effective area.
The IPEN and DEN signals go low when:
– The execution of one block is completed
NOTE 1 A parameter can specify, whether to only check if an acceleration/deceleration delay is
eliminated, or to also check if a servo delay (error) has been reduced to within a certain range.
NOTE 2 These signals are also output when the completion of a canned cycle spindle–speed function
is being awaited.