DL205 Analog Manual, 7th Edition Rev. D
9-11
Chapter 9: F2-02DA-2, F2-02DA-2L, 2-Channel Analog Voltage Output
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Channel Scanning Sequence for DL240, DL250-1, and DL260 CPUs
(Pointer Method)
If either a DL240, DL250-1 or DL260 CPU is used, both channels can be updated on every
scan. This is because the three CPUs support special V-memory locations that are used to
manage the data transfer. This is discussed in more detail in the next section on
Writing the
Control Program
.
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Channel 1, 2
Channel 1, 2
Channel 1, 2
Channel 1, 2
Channel 1, 2
Scan N
Calculate the data
Write data
Read inputs
Execute Application Program
Scan N+1
Scan N+2
Scan N+3
Scan N+4
Scan
Write to outputs
System With
DL240/250--1/260
CPU
Summary of Contents for DL205
Page 1: ...DL205 Analog I O Manual Manual Number D2 ANLG M ...
Page 2: ...Notes ...
Page 6: ...Notes ...
