Reference Manual

PMAC-PCI Hardware Reference
Introduction 1
INTRODUCTION
The PMAC PCI is a member of the PMAC family of boards optimized for interface to traditional servo
drives with single analog inputs representing velocity or torque commands. Its software is capable of 8
axes of control. It can have up either eight or four channels of on-board axis interface circuitry.
The PMAC PCI is a full-sized PCI-bus expansion card, with a small piggyback board containing the CPU
board. While the PMAC PCI is capable of PCI bus communications, with or without the optional dual-
ported RAM, it does not need to be inserted into an PCI expansion slot. Communications can be done
through an RS-232 or RS-422 serial port; standalone operation is possible.
Board Configuration
Base Version
The base version of the PMAC PCI provides a 1-1/2-slot board with:
• 40 MHz DSP56002 CPU
• 128k x 24 0-wait-state flash-backed SRAM
• 512k x 8 flash memory for firmware and user backup
• 2k x 8 EEPROM memory for setup variable backup
• Latest released firmware version
• RS-422 serial interface, PCI (PC) bus interface
• Four channels axis interface circuitry, each including:
• 16-bit +/-10V analog output
• 3-channel differential/single-ended encoder input
• Four input flags, two output flags
• Interface to external 16-bit serial ADC
• Display, control panel, muxed I/O, direct I/O interface ports
• Buffered expansion port
• Clock crystal with +/-100 ppm accuracy
• PID/notch/feedforward servo algorithms
• 1-year warranty from date of shipment
• One manuals CD per set of 1 to 4 PMACs in shipment
(Cables, mounting plates, mating connectors not included)
Option 1: Additional Four Channels Axis Interface Circuitry
• Option 1 provides an additional four channels of on-board axis interface circuitry, identical to the
standard first four channels.
Option 2: Dual-Ported RAM
Dual-ported RAM provides a high-speed communications path for bus communications with the host
computer through a bank of shared memory. DPRAM is advised if more than 100 data items per second
are to be passed between the controller and the host computer in either direction.
• Option 2 provides an 8k x 16 bank of dual-ported RAM on-board.
• Option A provides a 20-cm (8") 50-pin 3-connector cable. This cable is necessary when using the
Option 2 board combined with any of the Acc-14D, 24P, 29P, or 36P boards.
Option 2B: High-Speed USB Communications Interface
Option-2B provides the high-speed USB communications interface, which is a faster method of
communication than the standard RS-232 communications port.