N
Dear List
We are looking at a project that comprises a remote pumping station, approx.
1KM from main factory.
The remote station has a Modicon (37??) PLC and a ?? data logger (RS232),
the factory another Modicon (??) PLC with Telway and FIP I/O installed.
We cannot run a cable between the sites, and the customer does not wish to
use licensed radio.
We can install a leased ISDN line at the remote station however, or use low
power (unlicensed) radio.
Does anyone have any simpler solutions than the following:
Install a PC at the remote site, with serial comms to the PLC and
data-logger, and use RAS ISDN communications back to the main factory.
Install PC at factory to integrate data from remote and local systems.
(I would much rather have a "dumb" device at the remote end, that will
"funnel" the PLC and data-logger communications via ISDN / Radio back to the
main factory PLC).
Also does anyone know of good OPC / DDE drivers for Modicon equipment.
Many thanks in advance (and off list commercial replies OK)
Niall Watson
sysero: systems integration solutions
Niall Watson
Phone: 01283 743022
http:\\www.sysero.co.uk
a subsidiary of BI Industries plc
We are looking at a project that comprises a remote pumping station, approx.
1KM from main factory.
The remote station has a Modicon (37??) PLC and a ?? data logger (RS232),
the factory another Modicon (??) PLC with Telway and FIP I/O installed.
We cannot run a cable between the sites, and the customer does not wish to
use licensed radio.
We can install a leased ISDN line at the remote station however, or use low
power (unlicensed) radio.
Does anyone have any simpler solutions than the following:
Install a PC at the remote site, with serial comms to the PLC and
data-logger, and use RAS ISDN communications back to the main factory.
Install PC at factory to integrate data from remote and local systems.
(I would much rather have a "dumb" device at the remote end, that will
"funnel" the PLC and data-logger communications via ISDN / Radio back to the
main factory PLC).
Also does anyone know of good OPC / DDE drivers for Modicon equipment.
Many thanks in advance (and off list commercial replies OK)
Niall Watson
sysero: systems integration solutions
Niall Watson
Phone: 01283 743022
http:\\www.sysero.co.uk
a subsidiary of BI Industries plc