Campbell SM16M, Instruction Manual

Page: 29 / 46

Section 5. Data Retrieval
5-3
5.1.3 Via Remote Datalogger and Modem
The data can be collected from a module, connected to one of the above
dataloggers, via other telecommunication interfaces (e.g., phone lines). Please
refer to the PC208W manual for further details.
Computer
Running PC208W
Hayes Compatible
Modem
Standard Phone
Lines
Surge
Protector
COM200E
Modem
CR10X
Datalogger
SC12
9-pin Cable
SM4M/
16M
Modem
Cable
FIGURE 5-4. Typical Setup for Remote Collection of Data Via Datalogger and Modem
5.2 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(A) 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. The CR23X can also be used without an SC32A
(Figure 5-3). SMS also has a terminal emulator for manual execution of
telecommunication commands. Refer to the PC208W manual for more details.
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 set the baud rate at 115,200.
5.3 Data Retrieval
5.3.1 Direct Connection
Connect the Storage Module to the PC via SC532(A) as in Figure 5-1. Run
SMS and select the Data tab to collect data. Alternately use a terminal
emulator (the program or terminal emulator must raise DTR and RTS). Send
carriage returns until CR, LF, % is returned. Once the % is returned the
Storage Module is ready to accept telecommunications commands (see
Appendix B).