Fagor 8025 GP, Руководство по эксплуатации

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8 8025/8030 CNC PROGRAMMING MANUAL
5.2. CONDITIONAL BLOCKS
There are two types of conditional blocks:
a) N4 Standard conditional block
If next to the block number N4 (0-9999), a decimal point (.) is written, the block is
characterized as a normal conditional block. That means that the CNC will execute it, only
if the relevant external signal (enabling input for conditional blocks) is activated.
During many program execution, the CNC reads four blocks ahead the one being executed,
so the external signal is to be activated, at least during the execution of the fifth block
previous to the conditional block, for its execution to be carried out.
b) M4 Special conditional block
If next to the block number N4, two decimal points (..) are written, the block is
characterized as a special conditional block, in other words, the CNC will execute it, only
if the relevant external signal (enabling input for conditional blocks) is activated.
In this case, it is enough to activate the external signal (conditional input), during the
execution of the block previous to the special conditional block, for its execution to be
carried out.
The N4.. special conditional block, cancels G41 or G42 tool radius compensation.