4-8
Section
Offset and Gain Adjustment
91
4-8
Offset and Gain Adjustment
This function is designed to calibrate inputs or outputs depending on devices to
be connected.
4-8-1 Adjustment Mode Operational Flow
The following diagram shows the flow of operations when using the adjustment
mode for adjusting offset and gain.
Change the operation mode switch on the back of the Unit
Power up the PC
When adjusting another I/O number
When adjusting the same I/O number
Set the I/O number
Offset adjustment (Refer to pages 93, 98)
Offset Bit ON
(Bit 0 of IR word
n+1 turns ON.)
Sampling
input
(Add inputs so that
conversion value
becomes 0.)
Set Bit ON
(Bit 4 of IR word
n+1 turns ON.)
Turn off power to the PC
Change the operation mode switch on the back of the Unit
Set the operation mode switch to normal mode.
Set the operation mode switch to adjustment mode.
The RUN indicator will flash while
in adjustment mode.
Write the I/O number to be adjusted
in the rightmost byte of IR word n.
Gain adjustment (Refer to pages 95, 101)
Gain Bit ON
(Bit 1 of IR word
n+1 turns ON.)
Refer to
4-8-2 Input Offset and Gain Adjust-
ment Procedures
and
4-8-3 Output Offset
and Gain Adjustment Procedure
Adjustment
value setting
(Bits 2 and 3 of
IR word n+1
turn ON.)
Input adjustment
Output adjustment
Set Bit ON
(Bit 4 of IR word
n+1 turns ON.)
(Add inputs so that
conversion value is
maximized.)
Sampling
input
Adjustment
value setting
(Bits 2 and 3 of
IR word n+1
turn ON.)
Input adjustment
Output adjustment
Содержание SYSMAC C200H-AD003
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Страница 2: ...C200H AD003 DA003 DA004 MAD01 Analog I O Units Operation Manual Revised June 2003...
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