
B-66284EN/01 2.DEVELOPMENT OF CUSTOM SCREEN
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When a read enable signal is set to 1, this control reads the message
number specification area corresponding to this bit, and retrieves
message phrases with the specified phrase numbers from the
individual message files corresponding to this phrase. Thus, the
retrieval of a single phrase is executed for the number of constituent
phrases, and the phrases are combined in the order of phrase numbers
1 to 6, so that a single message is created. When the read enable signal
is set to 0, the message is removed from the operator’s panel.
If two bytes is selected as the size of each phrase number specification
area and thirty-two 6-phrase messages are to be displayed, 2 × 6 × 32
= 384 bytes are required as well as 32 bits for the read enable signals.
Thus, two continuous areas of 384 bytes and 4 bytes each are required
in the PMC.
CAUTION
1 Set the necessary phrase numbers from the PMC
before turning the corresponding read enable
signals on.
2 After setting a read enable signal to 1, do not
change the corresponding phrase number.
3 Telop display is accomplished by shifting the
character string gradually using software. The rate
at which the character string runs is affected by the
operating status of the NC unit. The shifting of the
character string stops if there is a process that
takes precedence over the telop display.