Automation Direct DL405 User Manual page 364

18–6
F4–04DAS–2 4-Channel Isolated 0–5V, 0–10V Output
Module Operation
D4–430 Special
Requirements
Data is split over three locations, so instructions cannot access data from a D4–430.
V40502
MSB
Y Y
5 5
7 0
Even though the module can be placed in any slot, it is important to examine the
configuration if you are using a D4–430 CPU. As you will see in the section on
writing the program, you use V-memory locations to send the analog data. As
shown in the following diagram, if you place the module so the output points do not
start on a V-memory boundary, the instructions cannot access the data.
Correct!
Data is correctly entered so output points
start on a V-memory boundary address.
V40502
MSB
Y
5
7
Wrong!
LSB MSB
Y Y Y
4 4 3
7 0 7
F4–04DAS–2
16pt 32pt
Output Output
Y0 Y20
– –
Y17 Y57
V40500 V40503
LSB
Y Y Y
5 4 4
0 7 0
F4–04DAS–2
8pt 32
Output Output
Y0 Y10
– –
Y7 Y47
V40501
Y Y
3 2
0 7
16pt 32 8pt 8pt
Input Input Input Input
X0 X20 X60
X70
– – –
–
X17 X57 X67
X77
V40501
MSB
Y Y Y
3 3 2
7 0 7
8pt 16pt 16pt 16pt
Input Inut Input Input
X0 X20
X40
X60
– –
–
–
X7 X37
X57
X77
V40500
MSB
Y Y Y Y
2 1 1 7
0 7 0
LSB
Y
2
0
LSB
Y
0