3 special data storage operations, 2 *4 mode — output device enable, 3 *9 mode — keyboard-initiated data transfer – Campbell Hausfeld SM4M User Manual

Page 20: 1 dsp4 heads up display, 2 storing burst measurement data from the 21x

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SM4M/SM16M Storage Module User Guide

3-2

Explanation:

Option 22 selects binary printer output at 9600 baud. The left

digit specifies the device option and the right, the baud rate.

Refer to the datalogger manual for further details.

3.2.2 *4 Mode — Output Device Enable

The *4 Mode is used to enable the output of Final Storage data to a printer. The

Storage Module will capture this printer output.

Select option ‘X1’ in window 1, and set the baud rate to 9600 (option 02) in

window 2 (to match the Storage Module’s default setting). Data is written to the

Storage Module each time data is sent to Final Storage.

While the module will work with *4, data is stored in the
module in ASCII format which requires up to 5 times more
memory space than binary format. Consider buying an
operating system upgrade if you are using dataloggers that do
not allow binary data storage with Instruction P96.

3.2.3 *9 Mode — Keyboard-Initiated Data Transfer

The *9 Mode in the 21X and CR7 dataloggers is used to transfer a specified block

of data from Final Storage to the Storage Module. Consult the appropriate

datalogger manual for details. This function is different from the *9 Mode in the

CR10/10X/CR23X.

3.3 Special Data Storage Operations

3.3.1 DSP4 Heads Up Display

In addition to real-time monitoring of datalogger measurements, the DSP4 Heads

Up Display can be used with the CR10/10X, CR23X, 21X and CR7 dataloggers to

store and retrieve data and programs. With the DSP4 storage module function

enabled, datalogger Final Storage data can be sent to the Storage Module. Refer to

the DSP4 Instruction Manual for more details regarding use with Storage

modules.

3.3.2 Storing Burst Measurement Data from the 21X

Burst Measurement (Instruction 23) is a special datalogger instruction available

for the 21X and which makes fast analogue voltage measurements. Two options

are available for data retrieval with this instruction:
1.

Data is stored in datalogger Input Storage locations

or
2.

Raw data is sent out of the datalogger serial port.

In the second case, the Storage Module can capture data at 76,800 baud.

When the Burst Measurement (Instruction 23) is used with the 21X, select the

destination (parameter 4) option as 2 for serial port output at 76,800 baud to send

data to the Storage Module. Burst data is output by the datalogger in a unique

format which includes calibration measurements at the beginning and end of the

series of measurements. Split (part of PC208W) will translate Burst data.

CAUTION

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