Input/2 Output Analog Combo Module (Cat. No. 1794 Ie4Xoe2 Series B); Analog Combo Module (1794 Ie4Xoe2/B) Read; Word/Bit Descriptions For The 1794 Ie4Xoe2/B Analog Combo Module Read - Allen-Bradley 1794-IE8 Series B User Manual

Configuring Your Module and Reading Status from Your Module with a Remote I/O Adapter

4 Input/2 Output Analog Combo Module (Cat. No. 1794 IE4XOE2 Series B)

I/O Image
Input Size
0 to 5 Words
Read
Output Size
Write
0 to 8 Words
Word/Dec. Bit 15
Word/Octal Bit 17
Read Word 0 S
Word 1 S
Word 2 S
Word 3 S
Word 4 PU
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 4 20mA inputs
PU = Power up bit
Word
Read
Word 0 Word 0
Word 1 Word 1
Word 2 Word 2
PU
Not used
Analog Combo Module (1794-IE4XOE2/B) Read
14 13 12 11 10 09
16 15 14 13 12 11
Analog Value Input Channel 0
Analog Value Input Channel 1
Analog Value Input Channel 2
Analog Value Input Channel 3
Not used - set to 0
Word/Bit Descriptions for the 1794-IE4XOE2/B Analog Combo
Module Read
Decimal Bit
(Octal Bit)
Bits 00-14 Channel 0 analog data - 12 bit left justified two's complement number;
(00-16) unused lower bits are zero; 4 20mA uses all 16 bits.
Bits 15 (17) Channel 0 analog data sign bit.
Bits 00-14 Channel 1 analog data - 12 bit left justified two's complement number;
(00-16) unused lower bits are zero; 4 20mA uses all 16 bits.
Bits 15 (17) Channel 1 analog data sign bit.
Bits 00-14 Channel 2 analog data - 12 bit left justified two's complement number;
(00-16) unused lower bits are zero; 4 20mA uses all 16 bits.
Bits 15 (17) Channel 2 analog data sign bit.
Module Image
Input Data Channel 0
Input Data Channel 1
Input Data Channel 2
Input Data Channel 3
Underrange & Diag.
Output Data Channel 0
Output Data Channel 1
Not used
Full Range and Configure Select
Not used
Not used
Output Channel 0 Safe State
Output Channel 1 Safe State
08 07 06 05 04 03
10 07 06 05 04 03
W1 W0 U3
Definition
Publication 1794 6.5.2 - May 1996
4–9
M
02 01 00
02 01 00
U2 U1 U0