Installation manual
CNC 8060
CNC 8065
LOGIC CNC INPUTS AND OUTPUTS.
6.
(REF: 1402)
·319·
General modifiable signals.
PANELOFF
PANELOFF1
··
PANELOFF8
If the PLC activates one of these marks the CNC disables the corresponding jog panel. Each
mark may be used to disable the jog panel integrated into the CAN bus; the rest of the
elements of the bus are not affected. When the keyboard and the operator panel make up
a single element, this mark only disables the jog panel.
There is one mark for each jog panel. The PANELOFF1 mark disables the first one of the
bus, the PANELOFF2 mark the second one and so on. Both PANELOFF and PANELOFF1
are valid for the first jog panel.
The "address" switch determines the order of the elements in the CAN bus. The first element
will be the one with the lowest number and so on. The element with the lowest number
corresponds to PANELOFF1.
SYNC
There is a register for each channel. The mnemonics for each channel are the following.
SYNC1 SYNC2 SYNC3 SYNC4
This register is used when using, from one channel, a particular spindle for synchronization
even if the spindle is in another channel. For example, in the case of dual-turret lathe with
a single spindle.
• With the G33 function, when threading with a particular spindle.
• With the G95 function, when programming the feedrate as a function of the turning speed
of a particular spindle.
To do that, the PLC indicates in channel register SYNC the spindle to be used, only for
synchronization. The SYNC register will take values 1 through 4; when assigning a 0 value,
it will use the master spindle of the channel.
The CNC will check the contents of this register at the beginning of the block. If the PLC
modifies this register during the execution of the block, the change will not effective until the
beginning of the next block.
RETRACE
There is a mark for each channel. The mnemonics for each channel are the following.
RETRACEC1 RETRACEC2 RETRACEC3 RETRACEC4
If the PLC sets this mark high (=1) while executing a program in automatic mode, the retrace
function is activated in the selected channel. The retrace function stops the execution of the
program and starts executing backwards the path traveled so far at the current block plus
the last n blocks executed. The maximum number of blocks to execute in retrace mode is
set by machine parameter NRETBLK.
The retrace function may be activated during an interpolation, in the middle of a block and
also at the end of the block, whether the execution was interrupted by M0 or by the single
block mode.
If the PLC sets this mark high (=1), the CNC finishes the RETRACE function. The retrace
function also ends after M30, with a reset or when the CNC channel sets mark RETRAEND
high (=1) See "RETRAEND" on page 295.
The retrace function must be enabled in machine parameter RETRACAC.
Address Element PLC mark
0CNC
1 Remote (I/O) group
2 Jog panel PANELOFF1
3 Remote (I/O) group
4 Remote (I/O) group
5 Keyboard + Jog panel PANELOFF2
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