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© 2010 Schneider Electric. All rights reserved. Page 13
ION Setup User Guide Introduction
Communicating with Devices
ION Setup uses one or more ports to communicate with the devices at each site in
the system. Each port of the workstation running ION Setup can connect to one or
more remote sites using a variety of communications hardware options. The next
sections discuss general considerations when using different communications
hardware options, including:
Serial communications:
direct connection to a single device using RS-232
direct connection to multiple devices using RS-485
direct connection to a single device using an optical probe
Ethernet and Ethernet gateway communications
Modem communications to remote sites (through telephone lines, radio links,
fibre optic cables, microwave links, etc.)
For detailed information on configuring devices with these communications
options, see “Adding and Configuring Devices” on page 41. For details on
configuring devices using offline programming, see “Using Offline Programming”
on page 46.
Using Serial Communications
ION Setup supports the RS-485 and RS-232 communications standards. If the
device is equipped with an RS-232 port, you can use an RS-232 cable to directly
connect the device to an available serial port on the computer.
To connect to more than one serial device, you can use an RS-232 to RS-485
communications converter. The RS-232 port on the converter connects to the
computer’s serial port, and the RS-485 port connects to up to 32 RS-485 devices.
Make sure the serial communications parameters are set correctly for each device
(for example, protocol, baud rate, parity and unique device address/unit ID). For
serial communications at 9600 baud, ION Setup polls at roughly one device per
second.
For instructions on communicating with serial devices, see “Adding and
Configuring Devices” on page 41.
Workstation
RS-485 devices
(maximum 32)
RS-232 to RS-485
converter
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