Spectrum Controls 1771sc-IFE32 - Manual (Page 29)

Chapter 4: Configuring Your Module 19
ranges.
Valid acquisition types/ranges are listed below:
Single Ended Ranges: Limits: Differential Ranges: Limits:
0* -10 to +10 V 8 -10 to +10 V
1 0 to +10 V 9 0 to +10 V
2 0 to +5 V 10 0 to +5 V
3 +1 to +5 V 11 +1 to +5 V
4 -5 to +5 V 12 -5 to +5 V
50 to +20 ma 13 NA
6 +4 to +20 ma 14 NA
7 -20 to +20 ma 15**Disabled
*Default
**Disabled – If this is the selected value, acquisition of this channel is disabled.
This can be used to improve throughput in modules where some channels are not
used.
NA – Not allowed.
The table below shows the incremented voltage or current assigned to each bit for
the seven different input ranges. For example, if the channel 1 input range is 0 to +5V
and the actual incoming signal is at mid-range (+2.5V) the value in the module’s data
word would be 0000 1000 0000 0000 (binary) or 2048 (decimal). The input is 2048/4096,
or 1/2 of full scale. It is recommended that you use 16 bit signed integer data format
to realize best module performance.
Input Signal: 16 Bit Signed: Raw Form Signed: 16 Bit Unsigned: Raw Form Unsigned:
-10 to +10 V -32,768
10
to 32,767
10
8001
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
0 to +10 V 0
10
to 32,767
10
0000
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
0 to +5 V 0
10
to 32,767
10
0000
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
+1 to +5 V 0
10
to 32,767
10
0000
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
-5 to +5 V -32,768
10
to 32,767
10
8001
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
0 to +20 ma 0
10
to 32,767
10
0000
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
+4 to +20 ma 0
10
to 32,767
10
0000
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
-20 to +20 ma -32,768
10
to 32,767
10
8001
16
to 7FFF
16
0
10
to 65,535
10
0000
16
to FFFF
16
Input Signal: 12 Bit Signed: *Raw Form Signed: 12 Bit Unsigned: Raw Form Unsigned:
-10 to +10 V -4095
10
to +4095
10
1 0FFF
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
0 to +10 V 0 to 4095
10
0 0000
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
0 to +5 V 0 to 4095
10
0 0000
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
+1 to +5 V 0 to 4095
10
0 0000
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
-5 to +5 V -4095
10
to +4095
10
1 0FFF
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
0 to +20 ma 0 to 4095
10
0 0000
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
+4 to +20 ma 0 to 4095
10
0 0000
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
-20 to +20 ma -4095
10
to +4095
10
1 0FFF
16
to 0 0FFF
16
0 to 4095
10
0000
16
to 0FFF
16
Input Signal: BCD Signed: *Raw Form Signed: BCD Unsigned: Raw Form Unsigned:
-10 to +10 V -4095
BCD
to +4095
BCD
1 4095
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16
0 to +10 V 0 to 4095
BCD
0 0000
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16
0 to +5 V 0 to 4095
BCD
0 0000
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16
+1 to +5 V 0 to 4095
BCD
0 0000
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16
-5 to +5 V -4095
BCD
to +4095
BCD
1 4095
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16
0 to +20 ma 0 to 4095
BCD
0 0000
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16
+4 to +20 ma 0 to 4095
BCD
0 0000
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16
-20 to +20 ma -4095
BCD
to +4095
BCD
1 4095
16
to 0 4095
16
0 to 4095
BCD
0000
16
to 4095
16