One of the high points of this year's Automation and Robotics 2000 Show was the launch by Opto 22 of a new family of I/O modules which interface with any RS-232 serial device.
One of the high points of this year's Automation and
Robotics 2000 Show was the launch by Opto 22 of a new family of
I/O modules which interface with any RS-232 serial device.
new SNAP-SCM-232 two-channel serial communication module extends
the functionality of Opto 22's award-winning SNAP Ethernet
I/O system, which now becomes the first of its kind to be able to
connect to virtually any plant floor device.
According to Opto 22
vice president Bob Sheffres, a whole new level of accessibility
to engineering data is now available: "With the new serial
module in the mix, you can now put any serial device right on the
Ethernet network - or even the Internet.
Suddenly, the SNAP I/O
system becomes the universal thin server for all data
types." In the past, combining analogue and digital signals
with serial devices involved the difficulty and expense of
installing a PLC, controller, or PC close to the source of the
data to interface with all the signals.
With its modules, the
SNAP Ethernet I/O system now allows users to place the compact
I/O system close to the data source and then multiplex all
signals back on an Ethernet network.
Analogue versions are
available in either two or four points per module, while digital
modules come with four points each.
The new serial module
provides two RS-232 ports per module.
Almost any application can
be handled as up to 16 modules of all three types can be mounted
on a single rack.
The SNAP-SCM-232 module offers baud rates
ranging from 300-115,200, while all adapter cables with both male
and female cable-to-D shell connectors are included.
Ready-To-Send (RTS) and Clear-To-Send (CTS) functions allow the
user to communicate with devices such as radios or modems
directly from the serial ports.
As a result, SNAP Ethernet I/O
with a serial module has a huge range of potential applications,
including: interfacing with printers and barcode readers for
materials handling; scales, message displays, and chart recorders
for the plant floor; badge readers and solenoids for security
systems; and in the laboratory with a mix of low-level analogue
and digital signals in conjunction with serial analysers and
other speciality equipment.