Product category:
Position, speed and torque measurement
News Release from: Micromech | Subject: PMAC2-PC/104
Edited by the Processingtalk Editorial
Team on 06 December 2005
PMAC2-PC/104 motion controllers use DSP
technology
The new PMAC2-PC/104 has been designed to deliver motion control for mid- to high-volume multi-axis motion control systems that demand a cost-effective and compact, yet flexible and reliable solution
The new PMAC2-PC/104 from Micromech Systems has been designed to deliver motion control for mid to high-volume multi-axis motion control systems that demand a cost-effective and compact, yet flexible and reliable solution They are a small-format version of the well-known feature-rich PMAC family of controllers from Delta Tau, the first motion controllers to exploit the power of digital signal processor (DSP) technology
This article was originally published on Processingtalk on 27 Jun 2003 at 8.00am (UK)
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The PMAC2-PC/104 can be applied directly to both analogue servos or pulse-and-direction stepper drives, and with an optional piggyback board it can also support the high-performance 'direct-PWM' pure digital control.
For applications using a series of boards in the PC/104 form factor, the controller can be installed in a PC/104 stack or act as a stand-alone controller with serial communications.
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This includes RS-232, USB, or Ethernet and because the PMAC2-PC/104 uses standard PMAC2 firmware, it has all of the software capabilities of any PMAC2 controller.
The board cleverly uses a very high level of integration to achieve its small form factor, the main board having only three main components, the Motorola DSP CPU with embedded RAM, the servo ASIC and flash memory backup.
The simplicity of its construction makes it very simple and reliable while still maintaining its core capabilities.
It supports four channels of servo/stepper interface, an RS-232 serial communications port, and an optional PC/104 bus communications port.
Digital inputs and outputs that are not employed for their dedicated purpose can be used as general-purpose I/O yielding up to 12 outputs and 24 inputs for each set of 4 channels.
There is also available an expansion board enabling an increase to eight servo inter-face channels with optional added digital I/O capability, including a link to hundreds of external I/O points.
The USB/Ethernet/Digital-IO board enables the use of one of two high-speed wire communications interfaces either USB or Ethernet that can be used with or without dual-ported RAM.
There is a further option that provides substantial digital I/O capability with an 8-input/8-out-put port that directly connects to an Opto-22 PB16 or equivalent I/O driver board.
In addition a 'multiplexer' port that can interface to hundreds of I/O points on PMAC ACC-34 family boards (or be used directly as 8 inputs and 8 outputs) and a 'handwheel' port with two supplemental machine channels.
Each of these can be used as a quadrature encoder input or a pulse-and-direction/single-phase PWM output for motion or process use.
The addition of this board permits the PMAC2-PC/104 to be used as a fully fledged machine tool controller with the 'PMAC-NC' software.
These cutting edge controllers are enabling engineers to broaden their design horizons and transform the capabilities of machines and equipment.
They can be applied to every type of application from grinding the corrective lenses for a deep space telescope with sub-nanometric resolution; moving massive land based telescopes, to operating the world's fastest pick-and-place machines.
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