The Model 57 is a PC AT height, 7/8 length plug-in
board for process control. It is optimized for weighing
applications but is adaptable to a wide variety of uses. If
the particular combination of features it offers doesn't
match your application exactly, some circuitry can be left
off the board with corresponding cost reduction. For volume
applications (100 boards or more) Lawson Labs can tailor a
board to your specifications.
An Ampro core module XT computer can plug directly into
the Model 57 for embedded applications. Note that the analog
and digital inputs and outputs are designed to survive in
the industrial environment.
FEATURES
4 isolated high level AC or DC inputs
4 isolated high level AC outputs
16 5-volt logic outputs
16 5-volt logic or contact closure inputs
1 isolated 4-20 MA current loop analog input
with programmable speed and resolution
linearity is 0.1% of full scale
2 isolated 4-20 MA current loop analog outputs.
0-10VDC output is also provided.
linearity is 0.1% of full scale
1 isolated event counter input
1 bridge input with sense lines and excitation
20-bit resolution A/D with three pin-programmable gain ranges
specifications similar to Lawson Labs Model 141
programmable cut-off frequency .5 to 9 Hz
temperature stabilized amplifier for long term stability.
MODEL MB1 PC104-BASED FLEXIBLE ACQUISITION SYSTEM
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Lawson Labs, Inc. offers a number of semi-custom options for
remote data acquisition. The most cost-effective option is to
connect the Model 201 to a stand-alone modem. We offer a
customized version of the Model 201 that allows high-speed
communications over phone lines. We provide the external modem,
cable, and software drivers required for remote-hosting the Model
201 for $250. Add $30 for the high-speed communications option.
Lawson Labs also offers a PC104-based remote data acquisition
system that features substantial flexibility. For many
applications, it can economically replace a laptop computer with
an external A/D System. These systems are built around our MB1
carrier board. The carrier board provides a PC104 stack, an ISA
slot suitable for most bus boards, and a stack for our
multiplexers or multiplexed amplifiers.
A typical configuration would use a Model 134, 135, 140 or 141
A/D card in the ISA slot and a PC104 modem for communications.
Non-volatile memory can be configured as a 2 Mbyte hard drive. A
serial and parallel port are available for further expansion. Our
Models 64, 188, or 220 can all be accessed via the parallel port
for digital I/O.
Software for the MB1 can be developed on a desktop computer
and adapted to run on the PC104 platform. Custom software
development is available, or standard PC104 development tools can
be used. We have a version of our PC64 Data Logging Software
Package adapted for the MB1 with a modem-only interface.
An MB1-based system can cost as little as $1000 (without
enclosure). Because of the wide variety of possible
configurations, we ask that you contact the factory for a quote.
