Rockwell-automation 1746-NI8 SLC 500 Analog Input Modules User Manual Instrukcja Użytkownika Strona 67

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8–2
Application Examples
Publication
17466.8 - April 1997
Channel Configuration
Configure channel 0 of the 1746-NI8 module with the following
setup:
4–20 mA input type
engineering units data format
zero data word in the event of an open circuit
10 Hz input filter to reject high frequency noise and provide
rejection of 60 Hz line noise
Channel Configuration Worksheet
(With Settings Established for Channel 0)
Input Type
Data Format
Open Circuit
Filter Frequency
Channel Enable
Not Used
Channel 0 - N10:0
Channel 1
Channel 2
Channel 3
1112131415
0000
910 8 67450123
0000
0000
0000
Bit Number
Channel 4
Channel 5
Channel 6
Channel 7
0000
0000
0000
0000
1101000100 00
Bit Definitions:
Bits 0-2
Input Type
000 = ±10V dc
001 = 1-5V dc
010 = 0-5V dc
011 = 0-10V dc
100 = 0-20 mA
101 = 4-20 mA
110 = ±20 mA
111 = 0-1 mA
Bits 3- 5 Data Format
000 = engineering units
001 = scaledforPID
010 = proportional counts
011 = 1746NI4 data format
100 = user defined scaling
101 = user defined scaling
110 = illegal
111 = illegal
Bits 6 and 7 Open Circuit 00 = zero 01 = upscale 10 = downscale 11 = illegal
Bits 8-10 Filter Frequency
000 = no filter
001 = 75 Hz
010 = 50 Hz
011 = 20 Hz
100 = 10 Hz
101 = 5 Hz
110 = 2 Hz
111 = 1 Hz
Bit 11 Channel Enable 0 = channel disabled 1 = channel enabled
Bits 12-15 Not Used 0000 = always make this setting
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