Delta Tau PMAC Pack, Справочник по аппаратуре

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PMAC-Pack
10 Overview
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PMAC transmitters send signals recognizable by most RS-232 receivers.
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Accessory 26 is available for optically isolated conversion between RS-422 and RS-232 levels.
Control-Panel Dedicated Inputs (JPAN):
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9 dedicated manual control functions Low-true 0-5V TTL inputs: RUN, STEP, ABORT, HOLD,
HOME, JOG+, JOG-, PREJOG, RESET.
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Intended for momentary toggle switches.
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4 motor-/coordinate-system-select lines (BCD coded, low-true TTL) that set what the above inputs
affect.
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One -10V to +10V analog input for feedrate override control.
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One 2-channel handwheel encoder input (TTL levels); uses encoder channel 2 by jumpering.
Note:
Discrete inputs may be used as general-purpose inputs with I2=1.
Thumbwheel Multiplexer I/O (JTHW):
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8 TTL input lines; 8 TTL output lines
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Designed for interface to ACC-18 Thumb wheel Multiplexer board(s); up to 512 digits or 2048
discrete inputs
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ACC-34 multiplexed I/O card(s) provide expanded I/O interface
Note:
The thumbwheel Multiplexer port may also be used as general-purpose
multiplexed I/O.
Display Outputs:
Connector to standard 2x24 or 2x40 character alpha-numeric liquid crystal or vacuum fluorescent display.
Expansion Digital I/O:
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JEXP connector provides access to up to 6 Accessory 14 I/O Expansion cards with 48 bits each of
digital I/O Configurable to inputs or outputs by byte
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Configurable to high-voltage level by 24-bit word
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Sinking or sourcing available with +5 to +24V high levels
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Totem-pole +5V outputs available
Note:
I/O expansion is most easily accomplished with an ACC-34 product, using JEXP
for purposes other than connection of the PMAC-Pack Expansion Pack. The
Expansion Pack may require modification of PMAC-Pack. Contact Delta Tau for
details.