User's Manual
PMAC VME Hardware Reference Manual
44 PMAC Basic Specifications
Accessory 29: Magnetostrictive Linear Displacement Transducer Interface
Board
This accessory is a 1/2-size IBM-PC board and is designed to handle four, or optionally eight, channels of
magnetostrictive linear displacement transducers (MLDTs) for PMAC. These transducers operate on a
principle that measures the time between an excitation pulse applied to the transducer and the reception of
an echo generated by a magnet's position along the transducer’s length. Generally, these transducers are
environmentally tolerant and are used in rugged applications such as hydraulic controls.
Acc-29: 4-channel MLDT interface board
OPT-1: Additional four channels (eight total)
Accessory 31: PMAC Demonstration Box Unit
Acc-31 is used for the purpose of demonstration of PMAC’s numerous motion control features. This
accessory is a very useful tool for PMAC-based program development and verifications by OEMs.
Internally the unit consists of a +
15V and +5V DC power supply, four or eight DC motors with HP 500-
line encoders, four or eight motor amplifiers, an optional PMAC board, and the necessary wiring to
external connectors. It also includes a control front panel and switches in the form of PMAC’s Acc-16D
to allow for input and output display independent of a host computer. In addition, an optional
configuration using the demo unit with the VME-based GE-Fanuc 90/70 PLC system is available.
Acc-31A: 4-axis demo unit (PMAC must be ordered separately).
OPT-3: PMAC Lite/PC (purchased separately) mounted internally.
Acc-31L: 4-axis demo unit/carrying case lease. 2-week minimum, customer pays shipping both
directions. Full lease-to-own credit on continuous rental period.
Accessory 32: PMAC Software Upgrade/Update Kit
At Delta Tau, we are continuously upgrading PMAC’s software for motion control. Software and
documentation updates are readily available to the customer through Acc-32. Acc-32 consists of updates
for an EPROM (PMAC firmware), User Manual, and Acc-9D PC Executive Program Diskette (if it was
previously purchased). Delta Tau will supply Acc-32 to the customer up to two times free of charge for a
period of six months from the date of purchase. If a customer has multiple PMAC cards, Acc-32 Option
1 provides extra PMAC EPROMs at a greatly reduced cost.
Acc-32: Upgrade Kit: EPROM, User Manual, Executive Diskette
OPT-1: Additional EPROM
Accessory 33: PMAC NC Software Library
This accessory is Windows based software written for the IBM-PC and compatible computers. The
software is used with a PMAC and a PC to give a high quality open-architecture machine tool controller.
Source code is available to allow the user to customize these modules as needed.
Acc-33: PMAC NC software for IBM PC; Window based; Executable code per machine
OPT-1 Executable code upgrade per machine
Acc-33L: PMAC NC software for IBM PC; Windows based; linkable DLL libraries; Site License.
OPT-1 Library upgrade and Site License
Acc-33S: PMAC NC software for IBM PC; Windows based; source code in C; Site License.
OPT-1 Source code upgrade and Site License
Accessory 34: Multiplexed I/O Expansion Board
This accessory provides 64 points of discrete, optically isolated digital I/O connected to PMAC through
the JTHW multiplexer port. Up to 32 of these accessories can be daisy-chained on a single port, for a
total of 2048 I/O points. There are three versions of this accessory: the Acc-34, the Acc-34A, and the
Acc-34B.