Campbell Scientific SM4M/SM16M Storage Modules - Manual (Page 10)

Section 1. SM4M/SM16M Storage Module Overview
1-4
Datalogger
SM4M/
16M
STORE DATA W/ INSTRUCTION 96
STORE DATA W/ *8 MODE CR500/CR510/CR10/CR10X/CR23X
STORE DATA W/ *9 MODE 21X, CR7
UPLOAD AND DOWNLOAD PROGRAMS W/ *D MODE
*9 MODE COMMANDS CR500/CR510/CR10/CR10X/CR23X
FIGURE 1-2. Operation with Current Dataloggers
The Storage Module can store data either under program control (Instruction
96) or under user control (*8 Mode with CR500/510/10/10X/23X, *9 Mode
with 21X and CR7). Datalogger programs can be stored in and retrieved from
the Storage Module using the *D Mode. The CR500/510/10/10X/23X *9
Mode enables the user to directly execute commands such as: change address,
view data, etc. (see your datalogger manual for full details).
1.4.2 Operation with Dataloggers with Older Operating
Systems (Printer-Enable Method)
In the Printer-Enable Method (see Figure 1-3), the Storage Module stores all
data received (on pin 9) while the printer enable line (pin 6) is high. The
Storage Module automatically detects the baud rate from the sending device
(9600 or 76800 only). The datalogger cannot detect whether the Storage
Module is connected. Data is sent whether or not the Storage Module is
connected.
21X
CR7X
CR7
DSP4
SM4M/
16M
FIGURE 1-3. Pin-Enable Operations
Data can be stored in the Storage Module under program control (Instruction
96 or *4 Mode) or under user control (*9 Mode). Operations with the DSP4
Heads Up Displays also use the Printer-Enable Method (see Section 3).
1.4.3 Data Retrieval / Telecommunication Command State
Data retrieval and other interactive operations with a computer take place in
the Telecommunications command state (see Figure 1-4). PC208W uses the
Telecommunications Commands for data retrieval. Direct telecommunication
commands can also be sent from SMS (part of PC208W) in the Terminal