MULTICHANNEL SIGNAL CONDITIONER MODEL 482C27 GENERAL OPERATION MANUAL
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4-6.
Model 482C27 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.
4-7.
Model 482C27 Unit Initialization Procedure
1) To begin, plug 9-pin female DSUB connector of given cable into the RS-232 port. Plug the other end of the cable into
the COM port of the terminal or computer.
2) Turn on power to the unit. The display or power indicator should light up to indicate the power is on.
3) With the terminal or computer that is set up to transmit data, according to the host set-up discussed in Section 3-3,
send the command:
“1:0:LEDS=0” <CR><LF>
This command flashes the front panel LEDs three times.
4-8.
Command Summary
The table below is a summary of the 482C27 command set. The 482C series is highly differentiated and some
commands may not be valid in all units. The 482C 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
FLTR
R/W
Channel
Enable/disable input filters
IEXC
R/W
Channel
Read/Adjust ICP
current setting
OFLT
R/W
Channel
Enable/disable output filters
CPLG
R/W
Channel
Select AC or DC coupling
CLMP
R/W
Channel
Enable/disable Clamp
CALB
R/W
Channel
Select Internal/External Cal setting
VEXC
R/W
Channel
Read/Adjust Bridge Voltage Excitation Setting
SWOT
R/W
Unit
Switched output (4 to 1 mux)
RTED
R
Channel
Read TEDS data (DS2430A)
ALLC
R
Channel
Read majority of channel settings
RBIA
R
Unit
Measure Bias (returns all channels)
CHRD
R
Unit
Read Channel output (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
AZZR
FCN
Channel
AutoZero/Auto Balance
