1.
I/O
Port Address
The
plug and play features set I/O port address automatically, please refer
the device manager of control panel to get base port address of this
adapter.
2.
Voltage Range
JP4 is used to select a range of A/D voltage from 0 to 10 volts or to a
maximum voltage of 20 volts. Shorting pin 1 and pin 2 will have a
voltage range of 10 volts, while shorting pin 2 and pin 3 will have a
voltage range of 20 volts.
JP4 |
|
Jumper
|
Voltage
Range
|
short 1, 2
|
10 Volts
|
short 2,
3
|
20 Volts
|
3.
Unipolar or bipolar
Selects
unipolar/bipolar of A/D or D/A channels. JP5 is used to select unipolar
or bipolar of A/D channel, JP6 is used to select unipolar or bipolar of
D/A channel 1, and JP7 is used to select unipolar of bipolar of D/A
channel 2. For JP5, shorting pin 1 and pin 2 selects bipolar setting,
while shorting pin 2 and pin 3 selects a unipolar setting. For JP6 and
JP7, shorting pin 1 and pin 2 selects bipolar setting, while shorting
pin 3 and pin 4 selects a unipolar setting.
Jumper |
Polarity |
JP5
|
JP6,
JP7
|
short 2,
3 |
short
3, 4 |
unipolar
|
short 1,
2 |
short
1, 2
|
bipolar
|
The
combination of voltage range and polarity are shown in the following:
JP4
|
JP5
|
Voltage Range
|
Short 1,2
|
Short 1,2
|
-5V
to 5V
|
Short 1,2
|
Short 2,3
|
0V
to 10V
|
Short 2,3
|
Short 1,2
|
-10V to 10V
|
Short 2,3
|
Short 2,3
|
0V
to 20V
|
JP6,7
|
Voltage
Range
|
short
3, 4 |
0V
to 10V |
short
1, 2 |
-10V to 10V |
4.
Input Mode for LF398
JP2 |
|
The JP2 is used to adjust input
offset of LF398. Setting the jumper to pin 2 and pin 3 will ground the
input value (0V), so the data that will be converted should also be
0. This setting is used whenever we need to calibrate the VR1
variable resistors so that the minimum voltage will be attained.
Shorting jumper to pin 1 and pin 2 will make use of the channel inputs
to be read and converted. It is the normal input mode.
Jumper
|
Input
Mode
|
short 2,
3
|
Ground
|
short 1,
2
|
Normal
Input
|
5.
Input Mode for SPT574
JP3 |
|
The JP3 is used to adjust input
offset of SPT574. Setting the jumper to
pin 2 and pin 3 will ground the input value (0V), so the data that will
be converted should also be 0. This setting is used whenever we
need to calibrate the VR2 or VR4 variable resistors so that the minimum
voltage will be attained.
Shorting jumper to pin 1 and pin 2 will make use of the channel inputs
to be read and converted. It is the normal input mode.
Jumper
|
Input
Mode
|
short 2,
3
|
Ground
|
short 1,
2
|
Normal
Input
|
6.
Programmable Gain Control Factor (AD526)
The JP1 is used to select programmable
gain control factor, when not short the jumper, it enable AD526,
otherwise short the pin means no AD526 work (can not control gain
control factor).
JP1 |
|
Jumper
|
AD526
|
short
|
no AD526
|
open
|
AD526
|
7. Card Identifier
The switch is used to identify
card number, default setting is card 15, and there are two methods to
set the card number:
a. PnP mode
Just plug in PCI bus 12 bit data acquistion adapter into PCI slot, the PCI BIOS will allocate I/O address to each adapter automatically and assign card number start from 0 to each adapter. You may set any card number at PnP mode, and you need use software tools to distinguish port id. Almost all of the operating systems run at PnP mode..
b. manual mode
Set card number by card identifier switch, the PCI BIOS will assign
pre-allocated I/O address to each adapter. Please set different card
number to each adapter (do not duplicate card number setting).
The card number starts from 0 to 15.
|
I/O Address
Specification
The
I/O address specification are shown in the following:
For
READ input
port
+ 0: input 12 bit A/D data.
port + 2: clear the interrupt signal that generated from
the adapter.
port + 6: 16 bit digital signal input.
port + 8: counter 0 I/O buffer (8254 IC).
port + 9: counter 1 I/O buffer (8254 IC).
port + A: counter 2 I/O buffer (8254 IC).
port + B: counter control register (8254 IC).
For
WRITE output
port
+ 0: select A/D channel number, enable/disable the selected
channel, select IRQ and select control method.
port + 2: 12 bit D/A channel 1.
port + 4: 12 bit D/A channel 2.
port + 6: 16 bit digital output.
port + 8: counter 0 I/O buffer (8254 IC).
port + 9: counter 1 I/O buffer (8254 IC).
port + A: counter 2 I/O buffer (8254 IC).
port + B: counter control register (8254 IC).
|
VR
Full Scalar Adjustment
VR Number
|
Function
|
VR1
|
Offset voltage of
LF398
|
VR2
|
A/D
bipolar offset
voltage
|
VR3
|
SPT574 reference
voltage
|
VR4
|
SPT574 reference
voltage
|
VR5
|
D/A channel 1
|
VR6
|
D/A channel 2
|
Before
adjust your AD/DA voltage offset, please run PCIADV03.EXE program under
MS/DOS, then select calibration function as follows.
1.
D/A Calibration
VR5 is used to adjust the D/A channel 1 offset voltage, and VR6 is used
to adjust the D/A channel 2 offset voltage.
To adjust D/A channel 1 offset voltage, please follow the step shown in
the below:
Step
1: |
short pin 1 and pin 2 of JP5, then adjust VR5 to let
J1-15 output
range from -10V to 10V. |
Step 2: |
short pin 3 and pin 4 of JP5, then adjust VR5 to let
J1-15
output range from 0V to 10V. |
To adjust
D/A channel 2 offset voltage, please follow the step shown in the below:
Step
1: |
short pin 1 and pin 2 of JP7, then adjust VR6 to let
J1-03 output range from ¡V10V to 10V. |
Step 2: |
short pin 3 and pin 4 of JP7, then adjust VR6 to let
J1-03 output range from 0V to 10V. |
2. A/D
Calibration
Step
1: |
short pin 2 and pin 3 of JP2, pin 2 and pin 3 of JP3,
pin 1 and pin 2 of JP4, and pin 1 and pin 2 of JP5, then adjust VR3 to
let the output value is 2047. |
Step 2: |
short pin 2 and pin 3 of JP2, pin 2 and pin 3 of JP3,
pin 1 and pin 2 of JP4, pin 2 and pin 3 of JP5, then adjust VR2 to let
the output value is 0. |
Step 3: |
short pin 2 and pin 3 of JP2, pin 1 and pin 2 of JP3,
pin 1 and pin 2 of JP4, and pin 1 and pin 2 of JP5, then adjust VR1 to
let the output value is 2047. |
Step 4: |
short pin 1 and pin 2 of JP2, pin 1 and pin 2 of JP3,
pin 1 and pin 2 of JP4, and pin 2 and pin 3 of JP5, then input voltage
from each A/D channel to check whether input voltage is equal to output
voltage. In this step, please adjust VR4. The A/D channel is defined
from J1-4 to J1-11 and J1-16 to J1-23. |
You may repeat Step 1 to Step 4 if necessary. |
|