AutomationDirect DL205 - Module Operation; Input Channel Scanning Sequence (Pointer Method)

DL205 Analog Manual, 7th Edition Rev. D
15-9
Chapter 15: F2-8AD4DA-1 8-Ch. In / 4-Ch. Out Analog Current Combination
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C
D
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Module Operation
Input Channel Scanning Sequence (Pointer Method)
If the F2-8AD4DA-1 module is installed in a local (CPU) base, the input data for all eight
channels can be obtained in one scan. However, only one channel of input data can be
obtained if the module is installed in an expansion, remote I/O, or Profibus slave base.
Ch 1, 2, 3,...7,8
Scan NRead the data
Store data
Read Inputs
ExecuteApplicationProgram
Scan N+1
Scan N+2
Scan N+6
Scan
WritetoOutputs
System with
analogmodule
installed in
local
(CPU) base.
Ch 1, 2, 3,...7,8
Ch 1, 2, 3,...7,8
Ch 1, 2, 3,...7,8
Scan N+7
Ch 1, 2, 3,...7,8
Scan NRead the data
Store data
Read Inputs
ExecuteApplicationProgram
Scan N+1
Scan N+2
Scan N+6
Scan
WritetoOutputs
System with analog
moduleinstalledin
expansion,remote I/O
or Profibusslave base.
Scan N+7
Ch 1
Ch 2
Ch 3
Ch 7
Ch 8