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Cooper Instruments & Systems DFI 1650 Multi-Channel Digital Force Indicator User Manual

Page 29

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CF 126

26

Nov 2001

R7/W7

Read/write Full-Scale Range

Purpose

Reads or writes the channel's "FULL SCALE MU/U" menu item

Usage

“ #aacc

R7

↵” to read, “#aacc

W7

n

↵” to write

# is the 'pound' or 'hash' character (ASCII decimal 35).
aa is the two-character instrument address. cc is the two-character channel number
n is the full-scale mV/V value.
↵ is the 'carriage return' character (ASCII decimal 13).

Example

“#0001W73.2

↵”

Reply

When writing: "OK" or "ERROR".
When reading: an ASCll-floating-point value.
Changing this value will change the gain of the amplifier circuit. It is recommended that a
recalibration of the transducer to the channel be performed to maintain calibration.

R8/W8

Read/write Shunt Cal Value

Purpose

Reads or writes the channel's "SHUNT CRL URLUE" menu item

Usage

“ aacc

R8

↵” to read, “#aacc

W8

n

↵” to write

# is the 'pound' or 'hash' character (ASCII decimal 35).
aa is the two-character instrument address.
cc is the two-character channel number
n is the shunt calibration value in engineering units.
↵ is the 'carriage return' character (ASCII decimal 13).

Example

“#0001W8147.89

↵”

Reply

When writing: "OK" or "ERROR"
When reading: an ASCll-floating-point value.
Changing this value has no effect until the channel is recalibrated to the transducer with
the Shunt Calibration method.

R9/W9

Read/write Excitation Voltage Setting

Purpose

Reads or writes the channel's "EXCITATION" menu item

Usage

“#aacc

R9

↵” to read, “#aacc

W9

n

↵” to write.

# is the 'pound' or 'hash' character (ASCII decimal 35).
aa is the two-character instrument address.
cc is the two-character channel number
n is the argument defined below.
↵ is the 'carriage return' character (ASCII decimal 13 ).

Argument

A value of 0 means 5 volts excitation.
A value of 1 means 10 volts excitation.

Example

“#0001W90

↵”

Reply

When writing: "OK" or "ERROR".
When reading: an ASCll-floating-point value.
Changing this value will change the excitation voltage to the transducer. It is
recommended that a re-calibration of the transducer to the channel be performed to
maintain calibration.

RK/WK

Read/write Known-Load Calibration Point

Purpose

Reads or writes the channel's "KNOWN POINT x/y” menu items

Usage

“#aacc

RK

pp

↵” to read, “#aacc

WK

ppn

↵” to write.

# is the 'pound' or 'hash' character (ASCII decimal 35).
aa is the two-character instrument address.
cc is the two-character channel number
pp is the parameter defined below.
n is the known-load calibration point in engineering units. .
↵ is the 'carriage return' character (ASCII decimal 13).

Parameter

“00" accesses the "KNOWN POINT 1/2", "KNOWN POINT 1/3" or "KNOWN POINT 1/5"
menu items.
"01" accesses the "KNOWN POINT 2/5" menu item.
"02" accesses the "KNOWN POINT 2/3" and "KNOWN POINT 3/5" menu items.