Description | Siemens 505-2557 instruction

		Chapter 1
		Description

1.1	Operating Modes	. . . . . . . . . . . . . . . . . . . . 1-2
	Asynchronous Operation	. . . . . . . . . . . . . . . . . . . . 1-2
	Compatability with Immediate I/O	. . . . . . . . . . . . . . . . . . . . 1-2
	100 Ohm, 10 Ohm, 120 Ohm RTDs, or Millivolt Inputs	. . . . . . . . . . . . . . . . . . . . 1-2
	Digital Word Map	. . . . . . . . . . . . . . . . . . . . 1-3
1.2	RTD Input to Digital Conversion	. . . . . . . . . . . . . . . . . . . . 1-4
	Engineering Units	. . . . . . . . . . . . . . . . . . . . 1-4
	Scale Units	. . . . . . . . . . . . . . . . . . . . 1-4
	Effect of Out-of-Range Input Signals	. . . . . . . . . . . . . . . . . . . . 1-5
	Resolution	. . . . . . . . . . . . . . . . . . . . 1-7

SIMATIC 505±2557 Installation and Operation Guide

Description

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Siemens 505-2557 installation and operation guide Description, 100 Ohm, 10 Ohm, 120 Ohm RTDs, or Millivolt Inputs

Contents

Simatic Copyright 1998 by Siemens Energy & Automation, Inc Manual Publication History List of Effective Pages Contents Iv Contents List of Figures List of Tables Preface Approval Agency ApprovalsEuropean Community CE 100 Ohm, 10 Ohm, 120 Ohm RTDs, or Millivolt Inputs Description Operating Modes Word Input to the PLC from the Module Scale Units RTD Input to Digital Conversion Out-of-Range Input SignalsEffect Effect of Voltage Input 10 Ohm Copper Input Resolution Resolution Selecting 2 and 3 Wire or 4 Wire Operation Installing and Configuring the ModuleCalculating the I/O Base Power Budget Installing and Configuring the Module Configuring Millivolt Input Temperature orSelecting Selecting Data Selecting DegreesCelsius or Fahrenheit Configuration Jumper Locations Base InsertingModule Into Copper Wire Table at 25 Degrees Celsius Wiring the Input Connectors Press In Wiring Connector Wiring Diagram for 2, 3, or 4 Wire RTD Wiring Diagram for Millivolt Measurements Cable Grounding Example I/O Configuration Chart Advanced Function Programming Advanced Advanced Software FunctionsIntroduction Overview Jumper Setting the ModuleConfiguration Memory LoggingController I/O Input Channel Data Internal Register StructuresInput and Output Register Offsets Input Registers Peak/Valley Hold Input Words Input Flag Bits Averaging Output Data Registers Inputs Function Enable BitsControl Registers Discrete Handshake Inputs Data Identification Bits Outputs Data Loading Process Loading Data into the Simatic 505±2557 Module Sample Low and High Alarm Setpoints Identifying the Data Being Transferred 11 Enabling the Functions Loaded Loading Programs into the I/O Module 13 Startup Relay Ladder Logic Page Timing Constraints When UsingTiming Overhead for Functions Enabled Timing Considerations Additional Information about Each Function Default ValuesDefault Function Values Default Function Values for Simatic 505±2557 Degrees Fahrenheit Alarm SetpointsDegrees Centigrade or Digital Filtering Hold AveragingPeak and Valley Flag Bits Hold Reset Precedence Function Troubleshooting Symptom Probable Cause Corrective Action 10 Troubleshooting Flow Diagram 17 I/O Register Quick Reference I/O Register Quick Reference Or K Memory Configuration Tables Page Addressing Worksheet 18 Open RTD Status Bits Items Unique to the Simatic 505±2557 Module Troubleshooting Table B-1 Specifications Specifications Specifications subject to change without notice Jumper Settings Log Sheet Customer Response Business Reply Mail