Automation Direct DL405 User Manual page 329

Sequencing The following program example shows how to send digital values to the module
Example 1, when you have more than one channel. This example assumes you have already
DL440/450 loaded the data according to the following table. It is important to use the rungs in
5 4 4
the order shown for the program to work.
430 440 450
Channel Number
V-Memory Storage
Channel Number
V-Memory Storage
Ch6 and Ch14 Done
Ch5 and Ch13 Done
Ch4 and Ch12 Done
V-Memory Locations for Output Data in Examples 1 and 2
1
3000
9
3010
Ch8 and Ch16 Done
C10
Ch7 and Ch15 Done
C7
C6
C5
C4
F4–16DA–1 16-Ch. Analog Current Output
2 3 4
3001 3002 3003
10 11 12
3011 3012 3013
C0
When channels 8 and 16 are updated, C0 restarts
OUT
the update sequence.
When channels 7 and 15 have been updated, this
LD
rung loads the data for channel 16 into the
V3017
accumulator. The second LD instruction places the
data for channel 8 in the accumulator and pushes
LD channel 16's data onto the stack.
V3007
C10
Turning on C10 triggers the channel update (see
OUT
the channel select rungs).
When channels 6 and 14 have been updated, this
LD
rung loads the data for channel 15 into the
V3016
accumulator. The second LD instruction places the
data for channel 7 in the accumulator and pushes
LD channel 15's data onto the stack.
V3006
C7
Turning on C7 triggers the channel update (see the
OUT
channel select rungs).
When channels 5 and 13 have been updated, this
LD
rung loads the data for channel 14 into the
V3015
accumulator. The second LD instruction places the
data for channel 6 in the accumulator and pushes
LD channel 14's data onto the stack.
V3005
C6
Turning on C6 triggers the channel update (see the
OUT
channel select rungs).
When channels 4 and 12 have been updated, this
LD
rung loads the data for channel 13 into the
V3014
accumulator. The second LD instruction places the
data for channel 5 in the accumulator and pushes
LD channel 13's data onto the stack.
V3004
C5
Turning on C5 triggers the channel update (see the
OUT
channel select rungs).
16–15
5 6 7
3004 3005 3006 3007
13 14 15
3014 3015 3016 3017
8
16