2 downloading a datalogger os, 3 use with the dsp4, Troubleshooting – Campbell Scientific SC-USB USB to CS I/O Optically Isolated Interface User Manual

Page 33: 1 installation, 2 software settings

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SC-USB USB to CS I/O Opto-isolated Interface

port, select the new COM port number assigned to the SC-USB (see Section
3.1.6), and then press Connect.

4.2.2 Downloading a Datalogger OS

The SC-USB can be used to download operating systems to the CR510,
CR10X, and 23X dataloggers using this tool. The SC-USB must be set to a
fixed baud rate and this baud rate must match DevConfig. You cannot load
operating systems into the CR800, CR850, CR1000, or CR3000 dataloggers by
selecting the “Send OS” tab in DevConfig because these dataloggers only
support the low-level OS upload via the RS-232 port. However, you can load
an operating system into these dataloggers using the option to load a program
into the datalogger (under Logger Control) and changing the file type to
operating system. (You can load the OS with other Campbell Scientific
programs too using the program load options.) This technique does not reset as
many settings as the lower level “Send OS” option.

4.3 Use with the DSP4

It is possible to use the SC-USB to communicate with most dataloggers when
they are used with a DSP4 Heads-Up Display. As with other means of
communication, display of data on the DSP4 is suspended during
communication.

For the CR5000 it is not possible to run any program that sends
data to the DSP4 and then communicate with the

SC-USB. This is because the CR5000 reserves the CS I/O port
solely for use by the DSP4. Contact Campbell Scientific for
further information.

NOTE

5. Troubleshooting

5.1 Installation

If when installing the SC-USB the Hardware installation wizard is not
displayed immediately, try rebooting the PC with the SC-USB plugged in or
run the Add Hardware option in the Control Panel. If the wizard still does not
appear, it is possible that drivers are already installed for the SC-USB; check
using the Device Manager.

The SC-USB uses a chipset made by FTDI. Many other USB devices also use
this chipset. As a consequence, the SC-USB and other FTDI devices may
share some common driver files. To ensure that the latest files are used, install
the SC-USB after the other devices are installed. Also be aware that
re-installing an older device last may result in unreliability, as older drivers
may overwrite the newer ones without any warning.

5.2 Software Settings

Generally, no specific settings are required to use the SC-USB with Campbell
Scientific software. The datalogger should be entered in the device map as if it
were directly connected to the COM port assigned to the SC-USB. The baud
rate setting has no effect on the speed that the SC-USB communicates with the
datalogger. This is normally determined automatically. The 21X and CR7 and
non-PakBus TD dataloggers do not support automatic baud rate detection. In

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