Communications
248083395-1 Rev 9
5-3
RS485 Communications
WARNING:
This
instrument will be damaged
and its warranty voided if
the design of the RS485
port is defeated to allow
daisy chaining. The port is
designed for a star
configuration only, where
the instrument is the
termination of a single
cable run between it and a
PC or hub.
The instrument uses RS485 as one of its communication modes.
Attaching the instrument to an RS485 network requires special
attention to topology (wiring scheme of network) before and after the
design phase to make sure the SOLAIR 1.0 CFM and other instruments
perform as expected.
A standard Cat5e or Cat6 cable is used to connect the instrument to an
RS485 network.
RS232 Communications
The instrument uses RS232 as a short-distance communication mode.
Typically, an Ethernet cable is connected to the RS-485 Port on the
SOLAIR and to any USB port on a PC using an RS232 to USB
converter cable assembly.
When the cable is attached to the PC, Windows will detect that a new
hardware device has been attached and will finalize the installation as
needed. This is a routine “registering” of components that should only
take a moment. An additional COM port will be added to the PC.
USB Communications
The SOLAIR provides point-to-point communications via the USB
Port.
If it hasn’t been done, yet, install the USB driver provided on the
product CD. Once it has been installed and the instrument is connected,
the driver will be used to establish communications using a virtual
COM port on the PC. Attempting to connect the instrument to a PC
and applying power before the driver has been installed will be
problematic.
Using the USB Port to connect to a PC
Note:
Make sure the
USB driver has been
installed on the PC before
connecting and applying
power to the instrument.
To connect the instrument to a computer using the USB port, make sure
that the driver has been installed first. Refer to the following:
1. Remove power from the instrument.
2. Connect the ’B end’ of a standard “A to B” USB cable to the
instrument (only ’B end’ will fit). See Figure 5-2.
Содержание SOLAIR 1100LD
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