Campbell Hausfeld SM4M - Manual (Page 12)

SM4M/SM16M Storage Module User Guide
1-6
The first flash after the delay will last from 1 to 2 seconds, depending on the last
use of the module. Further flashes follow with a 0 .5 second OFF and 0.5 second
ON spacing.
The total number of flashes indicates the status of the module, as follows:
Module OK
1 flash
Module operating system corrupted 2 flashes
OK and Program area full 3 flashes
Flash memory corrupted 4 flashes
OK - has wrapped around at least once 5 flashes
Storage module full
7 flashes
Previous operating system load failed 10 flashes
If the module is connected to a datalogger which has data to send, the green
‘Write’ LED may start to flash shortly after the end of the Status flash, as the
module becomes available to receive data and store it.
The module will only receive data if the status is OK, is OK and program area full
or OK and has wrapped around at least once. For any of the other status
conditions the module will not accept any further data until the fault has been
corrected.
1.5 Quick Start-Up Procedure
This Section describes the basics of storing and retrieving datalogger data. These
operations are discussed in detail in Sections 3, 4 and 5 of this manual.
1.5.1 Preparation
Before putting the Storage Module into service, connect it to a computer and use
SMS to reset the SM and test the memory.
If it is not possible to use a PC and SMS, you must establish communication
between the SM, the available computer or terminal (see Section 5), and reset the
SM using the telecommunications commands (see Appendix B) or use the *9
Mode in the CR500/510, CR10/10X or CR23X.
There are two possible reset mechanisms. A full reset and test (command 1248K),
which erases the memory and then carries out a thorough test of the storage
memory, and the quick reset (command 1249K). While the 1248K command
thoroughly checks the module, it can take some time to perform this test (over 20
minutes for larger modules). A quick reset, resets all the memory pointers and
erases the flash chips. It also does a less rigorous test of the flash memory, but the
test is adequate for most purposes. An SM16M will take around 3 minutes to
perform a quick reset.
1.5.2 Programming the Datalogger to Send Data to the SM
Instruction 96 is used in the datalogger program to send data to the Storage
Module. The SM is connected to the datalogger with the SC12 cable. Each time
Instruction 96 is executed, Final Storage data accumulated since the last transfer is
sent to the Storage Module.