MIL-G-80267
The control system shall provide
3.3.14.8 Switchable inch/metric input.
switchable inch/metric input capability.
Unless otherwise specified (see 6.2.1),
3.3.14.9 Part program storage.
part programs shall be stored in either solid state or bubble type memories.
Unless otherwise specified (see 6.2.1), the MCU on style A machines shall
store in memory a minimum of the equivalent of 50 feet of postprocessed part
program tape data and the MCU on style B machines shall store in memory the
content of not less than 200 feet of postprocessed part program tape data.
3.3.14.10 Standby battery power. Unless otherwise specified (see 6.2.1),
standby battery power shall be provided for controls having volatile memory
to hold the fully loaded memory for a period of not less than 72 hours after
the primary power source fails.
.
3.3.14.11 Part program-edit. A program edit capability shall be provided
to allow block Insertion, deletion or modification of any part program in
the part program memory. Data related to part program edit shall be input
by the manual data input provided on the control panel. Edited program data
entered into program memory shall be automatically acted upon, in the
sequence designated, whenever the part program is cycled.
3.3.14.12 Feed rate override. A feed rate override control shall be pro-
vided to allow manual adjustment of the programmed feed rate from zero to
not less than 120 percent of the programmed rate in either continuous
The feed rate over-
adjustment or in steps of not more than 10 percent.
ride control shall have a position that allows return of feed rate to that
programmed.
3.3.14.13 Sequence-number-search. The control shall permit the operator
to search for any desired sequence number.
Style B machines shall be capable of mirroring
3.3.14.14 Mirror-image.
Mirroring
from the same input data through the inversion of X and Y axes.
Inversion
in four quadrants shall be provided when specified (see 6.2.1).
of each axis shall be by keyboard or switch entry. Mirror imaging shall not
affect the directional sense of manual controls. Reverse settings shall be
displayed on the data display.
3.3.14.15 Preparatory function (G-Codes). The preparatory function codes
of the control shall be in accordance with EIA Standard RS-274.
3.3.14.16 Miscellaneous functions -(M-Codes). The miscellaneous function
codes of the control shall be in accordance with EIA Standard RS-274.
3.3.14.17 Block delete. The control shall have a block delete feature to
permit by-passing blocks of programmed data.
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