Rockwell Automation 1794-IE4XOE2,1794-IE8,1794-OE4,D17946.5.2 FLEX I/O ANALOG MODULE User Manual
Page 41
4–9
Configuring Your Module and Reading Status from Your Module with a Remote I/O Adapter
Publication 1794Ć6.5.2 - May 1996
4 Input/2 Output Analog Combo Module (Cat. No. 1794ĆIE4XOE2 Series B)
Module Image
I/O Image
Input Data Channel 0
Input Data Channel 1
Input Data Channel 2
Input Data Channel 3
Output Data Channel 0
Output Data Channel 1
Underrange & Diag.
Output Channel 0 Safe State
Not used
Not used
Full Range and Configure Select
Not used
Input Size
Output Size
0 to 8 Words
0 to 5 Words
Read
Write
M
PU
Output Channel 1 Safe State
Not used
Analog Combo Module (1794-IE4XOE2/B) Read
Word/Dec. Bit
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Word/Octal Bit
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
Read Word 0
S
Analog Value Input Channel 0
Word 1
S
Analog Value Input Channel 1
Word 2
S
Analog Value Input Channel 2
Word 3
S
Analog Value Input Channel 3
Word 4
PU
Not used - set to 0
W1 W0 U3
U2
U1
U0
Where:
S = sign bit (in 2's complement)
W = Diagnostic bits for current output wire broken or load resistance high. (Not used on voltage outputs.)
U = Underrange bits for 4Ć20mA inputs
PU = Power up bit
Word/Bit Descriptions for the 1794-IE4XOE2/B Analog Combo
Module Read
Word
Decimal Bit
(Octal Bit)
Definition
Read
Word 0
Bits 00-14
(00-16)
Channel 0 analog data - 12Ćbit left justified two's complement number;
unused lower bits are zero; 4Ć20mA uses all 16 bits.
Word 0
Bits 15 (17)
Channel 0 analog data sign bit.
Word 1
Bits 00-14
(00-16)
Channel 1 analog data - 12Ćbit left justified two's complement number;
unused lower bits are zero; 4Ć20mA uses all 16 bits.
Word 1
Bits 15 (17)
Channel 1 analog data sign bit.
Word 2
Bits 00-14
(00-16)
Channel 2 analog data - 12Ćbit left justified two's complement number;
unused lower bits are zero; 4Ć20mA uses all 16 bits.
Word 2
Bits 15 (17)
Channel 2 analog data sign bit.