5–6
How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter
Publication 17946.5.2 - May 1996
4 Output Analog Module (1794OE4 Series B) Image Table
Mapping
Module Image
I/O Image
Analog Data Channel 0
Analog Data Channel 1
Analog Data Channel 2
Analog Data Channel 3
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Diagnostics
Config. Select
Full Range
Input Size
Output Size
0 or 1 Word
1 to 6 Words
Read
Write
OE
PU
Analog Output Module (1794-OE4/B) Read
Decimal Bit
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Size
Octal Bit
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
Read Words
PU
Not used - set to 0
W3
W2
W1
W0
Read Word 1
Where: PU = Power up bit - included in series B modules only.
W = Diagnostic bits for current output wire broken or load resistance high. (Not used on voltage outputs.)
Analog Output Module (1794-OE4/B) Write
Decimal Bit
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Size
Octal Bit
17
16
15
14
13
12
11
10
07
06
05
04
03
02
01
00
Read Words
S
Analog Data - Channel 0
Write Word 1
S
Analog Data - Channel 1
Write Word 2
S
Analog Data - Channel 2
Write Word 3
S
Analog Data - Channel 3
Write Word 4
Not used - set to 0
OE3 OE2 OE1 OE0
Write Word 5
Not used - set to 0
C3
C2
C1
C0
Not used - set to 0
F3
F2
F1
F0
Write Word 6