DL205 User Manual, 7th Edition Rev. D
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Table of Contents
Special Placement Requirements (DL230 and Remote I/O Bases) 5–4
Setting the Module Jumpers 5–5
Selecting the Number of Channels 5–5
Selecting the Input Voltage 5–6
Connecting the Field Wiring 5–7
Wiring Guidelines 5–7
User Power Supply Requirements 5–7
Wiring Diagram 5–8
Module Operation 5–9
Channel Scanning Sequence for a DL230 CPU (Multiplexing) 5–9
Channel Scanning Sequence for a DL240, DL250-1 or DL260 CPU (PTR method) 5–10
Analog Module Updates 5–10
Understanding the Input Assignments 5–11
Analog Data Bits 5–11
Active Channel Indicator Inputs 5–12
Module Diagnostic and Sign 5–12
Module Resolution 5–12
Writing the Control Program 5–14
Reading Values: Pointer Method and Multiplexing 5–14
Pointer Method for the DL240, DL250-1 and DL260 CPUs 5–14
Using Bipolar Ranges (Pointer Method) for the DL240, DL250-1 and DL260 CPUs 5–16
Reading Values (Multiplexing) for the DL230, DL240, DL250-1 and DL260 5–17
Single Channel Selected 5–18
Using Bipolar Ranges (Multiplexing) 5–18
Using 2’s Complement for the DL205 CPUs (Multiplexing) 5–19
Analog Power Failure Detection 5–20
Scaling the Input Data 5–20
The Conversion Program 5–21
Analog and Digital Value Conversions 5–21
Filtering Input Noise for the DL250-1 and DL260 CPUs Only 5–22
Chapter 6: F2-04RTD, 4-Channel RTD Input
Module Specifications 6–2
Module Calibration 6–2
RTD Input Configuration Requirements 6–2
Input Specifications 6–3
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