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Analog Input Module10
Publication
17715.45 - July 1997
Because of the many analog devices available and the wide variety
of possible applications, you must configure the module to conform
to the analog device and specific application that you have chosen.
Use the configuration information below to configure your module
to your specifications.
Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Description
Word 1 8 7 6 5 4 3 2 1
Range Selection Channels 1 - 8
2 16 15 14 13 12 11 10 9
Range Selection Channels 9 - 16
Input range selections
allow the
Bit 01 Bit 00
V
oltage or Current Input
Input range selections
allow the
user to configure the inputs for any of
0 0
1 to 5V dc, 4 to 20mA (default)
7 input voltage or current ranges. T
wo
bits are required for each channel.
0 1
0 to 5V dc, 0 to 20mA
.
Bits 00 and 01 for channel 1, bits 02
and 03 for channel 2, etc.
1 0
5 to +5V dc, 20 to +20mA
and 03
or channel 2, etc.
1 1
10 to +10V dc, 0 to 10V dc
3 Real T
ime Sampling
Data
Format
Input
Type Digital Filter
Real time sampling, data format, input
type and digital filter
Digital filter
reduces ef
fect of noise on input. (Default is no
filter.)
Input type
, set bit for dif
ferential mode on all channels.
Reset (0)
= singleended inputs (default)
Set (1)
= dif
ferential inputs
Real time sampling
- Default is no R
TS.
Data format
- set to match
your processor
.
BCD (default)
Reserved
Two's
complement binary
Signed magnitude binary
Bit 10
(12)
Bit 09
(11)
0 0
0 1
1 0
1 1
4
Minimum sign bits, when set, designate negative minimum scaling values for the
corresponding input channels. Bit 00 corresponds to channel 1, bit 01 corresponds to
channel 2, etc.
Sign Bits, minimum scaling values
5
Maximum sign bits, when set, designate maximum scaling values that are negative.
Maximum scaling value must be greater than minimum on any particular channel. Bit 00
corresponds to channel 1, bit 01 corresponds to channel 2, etc.
Sign Bits, maximum scaling values
6, 8, 10, 12, 14, 16,
18, 20, 22, 24, 26,
28, 30, 32, 34, 36
Minimum scaling
values for each channel. Enter in BCD format.
Channel 1 minimum scaling
7, 9, 1
1, 13, 15, 17,
19, 21, 23, 25, 27,
29, 31, 33, 35, 37
Maximum scaling
values for each channel. Enter in BCD format.
Channel 1 maximum scaling
38
Offset calibration - Each bit represents a channel (bit 00 to channel 1, bit 01 to channel
2, etc.). When the bit is set, and a BTW has been sent, the module will read the channels
and adjust the offset to analog ground potential. In differential mode, bits 08 thru 15 (10
thru 17 in octal) are ignored. In current mode, apply 0mA.
Offset
Calibration
39
Gain calibration - Each bit represents a channel (bit 00 to channel 1, bit 01 to channel 2,
etc). When the bit is set, and a BTW has been sent, the module will read the channels and
adjust the gain correction values. If used on +, 0 to 5, or 1 to 5V ranges, a value of 5V is
expected. If used on +10V range, 10V is expected. In differential mode, bits 08 thru 15 (10
thru 17 in octal) are ignored. In current mode, apply 20mA.
Gain
Calibration
For
detailed configuration
information, see chapter 2 of
your
Analog Input User Manual
(publication 17716.5.1
15).
Configure the Module
