User guide

User Guide
3
RS-232 Baud Rates
The SC105 will support the following baud rates:
1200, 9600, 19200, 38400, 57600, 115200
RS-232 Parity and Data
The SC105 supports the following:
Parity: Even, Odd, None
Data Bits: 7, 8
CS I/O Port Modes:
CSDC, SDC, ME, Addressed Print Device for P96 output
Electrical
The SC105 uses power from the +5 V line on the 9-pin interface connected to
the datalogger.
Current
Standby: 0.16 mA
Communicating: 1 to 4 mA
Additional current (up to 8 mA) from the 5 V supply may be used by the
RS-232 device connected to the SC105.
Physical
Height: 0.9 in (2.3 cm)
Width: 1.6 in (4.1 cm)
Length: 3.5 in (8.9 cm)
Weight: 1.6 oz (45.4 g)
Environmental
Temperature: -25
o
to +50
o
C
Humidity: up to 95% non-condensing
3. Set-up Menu
The SC105 has a built-in Set-up Menu for configuring communication mode, CS
I/O port configuration, RS-232 port configuration, and other parameters. The
Set-up Menu is shown in Figure 2. It is accessed by connecting the SC105’s
RS-232 port to a PC with the included null modem cable. The SC105 also needs
to have power. Usually the SC105 is powered by connecting the SC105’s CS
I/O port to the CS I/O port of a datalogger.
With the null modem connection to the PC, typically Campbell Scientific’s
Device Configuration (DevConfig) Utility is used, but a terminal program such
as HyperTerminal
TM
or Procomm
TM
(always 9600 baud, 8-N-1) can also be
used. Press the “Program” button on the SC105 for one second to access the
Set-up Menu. Changed settings are saved in flash memory by selecting Apply in
DevConfig or menu item “4” if using HyperTerminal or Procomm. If left idle,
the Set-up Menu will time out 60 seconds after the last received character and
exit without saving any parameter changes with the message “Set-up Timeout.”
A datalogger can remain connected to the CS I/O port (to provide power to