EN: man_8065_chn.pdf - Fagor Automation

6.
PROGRAMMING IN A SYSTEM WITH CHANNELS.
CNC 8065
(REF: 1103)
·108·
Communication and synchronization.
Execution channels
6.5.1 Synchronization of channels interrupting the execution of all the
channels involved.
The synchronization is programmed with the #MEET instruction. This instruction activates
a mark in its own channel, interrupts the execution of the program and sets the channel
waiting until the same mark is active in the indicated channels. All the channels interrupt the
execution of their programs in order to synchronize.
Each channel has 100 marks numbered from 1 to 100; no order needs to be followed when
using these marks. This instruction may be used to synchronize all the channels at the same
time.
Programming.
When programming this instruction, you must define the number of the mark and the
channels used for synchronization. There is no need to include the number of its own channel
in each instruction because the mark is activated when executing the #MEET instruction;
however, we recommend to program it to make the program easier to understand.
Programming format.
The programming format is the following; the parameters to be set appear between curly
brackets and the optional parameters between angle brackets.
#MEET [{mark},{ch}]
{mark} Synchronism mark.
{ch} Channel where the mark must be activated.
#MEET [1,3]
(The CNC synchronizes the channel where the instruction is executed with channel ·3· using mark
·1·.)
#MEET [8,2,3]
(The CNC synchronizes the channel where the instruction is executed with channels ·2· and ·3·
using mark ·8·)
How is the synchronization carried out.
This instruction activates a mark in its own channel, interrupts the execution of the program
and sets the channel waiting until the same mark is active in the indicated channels. When
the last channel involved activates its mark, all the channels delete the mark used and
resume the execution of their programs. All the channels interrupt the execution of their
programs in order to synchronize.
In the following example, channels ·1·, ·2· and 3 wait for mark ·5· to be active in order to
synchronize the execution.
Channel ·1·. Channel ·2·. Channel ·3·.
%PRG_1
···
···
#MEET [5,1,2,3]
(Execution interrupted.)
%PRG_2
···
#MEET [5,1,2,3]
(Execution interrupted.)
%PRG_3
···
···
···
···
#MEET [5,1,2,3]
(Execution interrupted.)
(Synchronize the execution.)