A simple, very cost effective way of implementing remote data
collection can be achieved by using three readily available
commercial products; Kepware's KEPServerEX, a Panel-Tec Wireless
Modem, and a Toshiba PLC.
Kepware's KEPServerEX: Kepware's KEPServerEX allows MS compliant
applications to share data with a Toshiba programmable logic
controller. Data can be loaded into a spreadsheet or database,
then (using the applications' own tools) it can be graphed,
charted, or statistically analyzed.
Panel-Tec Modpac Plus: The Panel-Tec Modpac Plus is a wireless
modem. The Modpac Plus ia an RF modem which supports RF transceivers
in all FCC licensed narrowband RF frequencies (VHF, UHF,
and 928/950 Mhz) as well as Spread Spectrum (unlicensed)
RF frequencies. The Modpac Plus has internal addressing and
configuration capabilities which allows any modem to act
as a data "repeater" when long distances preclude
direct FR master to slave communications. The independent
addressing of the Modpac Plus permits the master to communicate
with up to 99 Toshiba PLCs on a single radio channel.
Toshiba PLC: The primary purpose of the Toshiba PLC is to
provide local sequence control, interlocking, and permissives.
However, the large number of available memory registers make
it ideal to store data until it is polled by the master.
For additional information on the products described above,
please contact the appropriate company listed below:
PO Box 579
Portland, ME 04112
Phone: 1-888-Kepware (1-888-537-9273)
P.O. Box 2394
Huntsville, AL 35804-2394
Phone: 1-800-869-2026 Fax: 1-205-534-8132
13131 W. Little York Rd.
Houston, TX 77041
Phone: 1-800-231-1412 Fax: 1-712-466-8773