Installation manual
CNC 8060
CNC 8065
LOGIC CNC INPUTS AND OUTPUTS.
6.
(REF: 1402)
·295·
General consulting signals.
CAXIS
There is a mark for each channel. The mnemonics for each channel are the following.
CAXISC1 (can also be programmed as CAXIS)
CAXISC2 CAXISC3 CAXISC4
The CNC channel sets this mark to (=1) when the spindle is working as C axis. This mark
is kept active while any of the functions #CAX, #FACE or #CYL are kept active.
FREE
There is a mark for each channel. The mnemonics for each channel are the following.
FREEC1 FREEC2 FREEC3 FREEC4
The CNC channel sets this signal high (=1) to indicate to the PLC that it is ready to accept
a new block, sent using the CNCEX command.
WAITOUT
There is a mark for each channel. The mnemonics for each channel are the following.
WAITOUTC1 WAITOUTC2 WAITOUTC3 WAITOUTC4
It is applied to channel synchronization. The CNC channel sets this signal high (=1) to
indicate to the PLC that it is waiting for a synchronization signal. Synchronization signals may
be executed from the part-program using the #WAIT or #MEET instructions.
MMCWDG
This mark indicates the status of the operating system. Its value is (=0) when the CNC
operating system is working properly and (=1) when the operating system is locked up.
Include this mark in the PLC maneuver to enable the emergencies when the operating
system locks up.
RETRAEND
There is a mark for each channel. The mnemonics for each channel are the following.
RETRAENDC1 RETRAENDC2 RETRAENDC3 RETRAENDC4
The CNC channel sets this mark high (=1) to cancel the retrace function. The CNC channel
cancels the retrace function in the following cases.
• The CNC channel has executed all the blocks stored for the retrace function.
• The CNC channel has reached the beginning of the program.
• The CNC channel has reached a block that cannot be executed with the retrace function.
In all these cases, the CNC channel sets its mark RETRAEND high (=1) to indicate to the
PLC that all possible blocks have been executed and that it must set its RETRACE mark to
"0". See "RETRACE" on page 319.
If the PLC automatically removes the RETRACE mark with the RETRAEND mark, the CNC
goes on with the normal execution of the program, forward. Otherwise, if the RETRACE mark
stays active, the CNC will issue a warning indicating that this mark must be deactivated in
order to resume the execution of the program. The same occurs when trying to execute a
new program after executing the retrace function.
The retrace function is also canceled after M30, with a reset or when the PLC sets the channel
mark RETRACE low (=0)
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