SC-IRDA Infra-red Communications Interface
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4.2.1 PC200W Version 1.2 and PC208W Version 3 (or later)
Both of these programs will work with the SC-IRDA on all but the slowest
PCs. PC200W only supports COM 1 to COM 4, and so you must ensure the
virtual IRDA serial port maps to one of these numbered ports. PC208W does
not have this limitation.
Both of these programs will generate a warning message in the low level log
files when the serial port is first opened. This can be ignored.
PC200W version 2.0 does not work with the SC-IRDA. Please
contact Campbell Scientific to check if a later version is
available which includes support.
4.2.2 LoggerNet
Version 2.1 of LoggerNet works with the SC-IRDA but requires the addition of
a Generic Modem to be inserted between the virtual COM port and the
datalogger in the network map. The only non-default setting required in the
Generic modem setup is the dial string which should be entered as "D5000".
This setting forces LoggerNet to wait for 5 seconds after opening the serial port
before it tries to communicate. Later versions of LoggerNet should not need
this setting.
Users of Windows 98 or ME may encounter a problem with LoggerNet not
allowing use of the virtual COM port assigned to the IRDA interface. This is
due to inconsistencies in the way valid COM ports are reported to applications.
Please contact Campbell Scientific for further advice on how to overcome this
problem.
The version of SMS supplied with LoggerNet 2.1 will not allow
communication to a storage module connected in parallel to a datalogger.
Version 4.6 of SMS, which will be shipped with LoggerNet 2.2, is needed to
allow for the extra start up delay associated with the IRDA interface. Please
contact Campbell Scientific if you need a copy prior to the formal release of
this version.
4.2.3 PC9000
All versions of PC9000 should work with the SC-IRDA interface by setting the
program to operate via the virtual COM port assigned to the SC-IRDA. As with
all PC programs, the serial port speed set on the PC does not actually control
the real baud rate used to communicate with the datalogger. With PC9000 this
is fixed at 9600 baud and cannot be changed. This baud rate may be a severe
limitation if you need to transfer large volumes of data.
4.3 Optimizing the Datalogger Baud Rate
The speed of connection between the datalogger and SC-IRDA interface is set
at 9600 baud by default, independently of any baud rate settings you enter in
the PC software. This speed ensures "out of the box" operation with all
Campbell Scientific dataloggers.
The interface itself has the capability to run at different baud rates, e.g. 1200,
9600 or 19200 baud. Using the higher speed setting will increase throughput of
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