DL205 User Manual, 7th Edition Rev. D
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Table of Contents
General Specifications 4–3
Special Placement Requirements (DL230 and Remote I/O Bases) 4–4
Setting the Module Jumpers 4–5
Selecting the Number of Channels 4–5
Connecting the Field Wiring 4–6
Wiring Guidelines 4–6
User Power Supply Requirements 4–6
Current Loop Transmitter Impedance 4–7
Wiring Diagram 4–8
Module Operation 4–9
Channel Scanning Sequence for a DL230 CPU (Multiplexing) 4–9
Channel Scanning Sequence for a DL240, DL250-1 or DL260 CPU
(Pointer method) 4–10
Analog Module Updates 4–10
Understanding the Input Assignments 4–11
Analog Data Bits 4–11
Active Channel Indicator Inputs 4–12
Module Diagnostic Inputs 4–12
Module Resolution 4–12
Writing the Control Program 4–13
Reading Values: Pointer Method and Multiplexing 4–13
Pointer Method for the DL240, DL250-1 and DL260 CPUs 4–13
Reading Values (Multiplexing) for the DL230, DL240, DL250-1 and DL260 4–15
Single Channel Selected 4–15
Analog Power Failure Detection 4–16
Scaling the Input Data 4–16
The Conversion Program 4–17
Analog and Digital Value Conversions 4–17
Filtering Input Noise for the DL250-1 and DL260 CPUs Only 4–18
Chapter 5: F2-08AD-2, 8-Ch. Analog Voltage Input
Module Specifications 5–2
Firmware Requirements: 5–2
Analog Input Configuration Requirements 5–2
Input Specifications 5–3
General Specifications 5–3
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