MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
15
3-3.
Communication Guidelines
1) Data transfer from the host terminal to the unit must contain an ending delimiter of <CR><LF>.
Example:
<CR><LF>
-Carriage Return and Line feed. (In ASCII,
<CR> is 13; <LF> is 10.)
2) The number of characters for any command string, from the first character to the <CR>, may not exceed 255.
3) Status request commands, i.e., commands ending with a “?”, may only be sent within one transmission.
Example:
7:0:GAIN?<CR> <LF>
-Reads the gain setting of all channels.
3-4.
Unit Initialization Procedure
1) To begin, connect the signal conditioner to the network using the RJ-45 connector on the back of the unit.
2) Turn on power to the signal conditioner. The power indicator should light up to indicate the power is on.
3) With the terminal or computer that is set up to transmit data, send the command:
“1:0:LEDS=0” <CR><LF>
This command flashes the front panel LEDs three times.
3-5.
Command Summary
The table below is a summary of the command set. Some commands may not be valid in all units. The commands are
sent and received from/to the host computer in ASCII text format.
Command
Type
Scope
Meaning
GAIN
R/W
Channel
Set or read gain
SENS
R/W
Channel
Sensor Sensitivity
FSCI
R/W
Channel
Expected Full Scale Input Value
FSCO
R/W
Channel
Full Scale Output
INPT
R/W
Channel
Input Signal Mode Selection
IEXC
R/W
Unit
1
Read/Adjust ICP
current setting
OFLT
R/W
Channel
Enable/disable output filters
OSCL
R/W
Channel
Select Oscillator setting
RTED
R
Channel
Read Raw TEDS data (DS2430A,DS2431
2
,DS2433
2
)
WTED
2
W
Channel
Write Raw TEDS data (DS2430A,DS2431,DS2433)
ALLC
R
Channel
Read majority of channel settings
RBIA
R
Unit
Measure Bias (returns all channels)
STUS
R
Unit
input fault / overload status, for all channels
UNIT
R
Unit
Read Unit Configuration information
UNID
R/W
Unit
Set Unit ID
LEDS
FCN
Unit
Front panel LED test function
RSET
FCN
Unit
Restores factory default channel settings
AUTR
FCN
Channel
Enable/disable auto-scaling function
SAVS
FCN
Unit
Saves the current settings to NVRAM
1
The IEXC command is a channel level command on 483M217 units
.
2
This feature is only available in units with a firmware version of 2.1 or greater
.
