Campbell Hausfeld SM4M - Manual (Page 27)

Section 5. Data Retrieval
5-3
The telecommunications part of the PC208W datalogger support software package
is used to schedule and make data collection from the datalogger or storage
module. Please refer to the PC208W manual for further details.
5.2 Datalogger Support Software
5.2.1 SMS
SMS (part of the PC208W software package) is a Windows-based program which
provides a simple and efficient way of communicating with the SM4M/SM16M,
as well as Campbell Scientific’s Card Storage Module (CSM1), Card Reader
(MCR1) and PC (PCMCIA) Cards. SMS normally requires the SC532 interface
as shown in Figure 5-1 for direct connection. For communication via the
CR500/510, CR10/10X or CR23X the setup shown in Figure 5-2 is required.
SMS also has a terminal emulator for manual execution of telecommunication
commands. See the PC208W manual for full details of SMS.
For the most rapid data transfer, use a PC capable of supporting data transfer at
115,200 baud in a Windows environment. This will normally require that the
serial ports of the PC are fitted with buffered UARTs, which is the case for most
modern machines. Within SMS you should increase the baud rate to 115,200.
5.3 Data Retrieval Steps
5.3.1 Windows/NT PCs
1. Use an SC532 Interface.
2. Make the appropriate connections (see Section 5.1).
3. Run SMS (see the PC208W manual).
5.3.2 CR500/510, CR10/10X and CR23X Telecommunications
Interface
Make the connections (see Figures 5-2 and 5-3) and establish communications
with the datalogger. Send the command ‘XM,CR’ to the datalogger (where X is
the Storage Module address 1...8). If the connections are correctly made and the
Storage Module is properly addressed, it will send back ‘CR, LF, %.’ If the
attempt to establish communications fails, the datalogger will return ‘*’.
Once the ‘%’ is received, the Storage Module telecommunications commands (see
Appendix B) may be used. SMS can be used when the connection to the
datalogger is through the SC32A Optically Isolated RS232 Interface as shown in
Figure 5-2.