Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 35)

2–15 How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
1794ĆIE8/B Range Selection Bits
Channel No. Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7
F0 C0 F1 C1 F2 C2 F3 C3 F4 C4 F5 C5 F6 C6 F7 C7
Decimal Bits
(Octal Bits)
00
08
(10)
01
09
(11)
02
10
(12)
03
11
(13)
04
12
(14)
05
13
(15)
06
14
(16)
07
15
(17)
0-10V dc/0-20mA 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
4-20mA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
Ć10 to +10V dc 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Off 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
C = Configure select bit
F = Full range bit
1
When configured to off, individual channels will return 0000H on Series B modules, and 4 to 20mA on Series A modules.
1794ĆIE8 Word/Bit Descriptions
Word Decimal Bit Definition
Read Word 1
Bits 00-14
Channel 0 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 0 analog data sign bit.
Read Word 2
Bits 00-14
Channel 1 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 1 analog data sign bit.
Read Word 3
Bits 00-14
Channel 2 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 2 analog data sign bit.
Read Word 4
Bits 00-14
Channel 3 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 3 analog data sign bit.
Read Word 5
Bits 00-14
Channel 4 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 4 analog data sign bit.
Read Word 6
Bits 00-14
Channel 5 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 5 analog data sign bit.
Read Word 7
Bits 00-14
Channel 6 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 6 analog data sign bit.
Read Word 8
Bits 00-14
Channel 7 analogdata - 12Ćbit left justified two's complement
number; unused lower bits are zero; 4Ć20mA uses all 16 bits.
Bits 15 Channel 7 analog data sign bit.