Siemens 505-2557 installation and operation guide Setting the Module, Configuration, Jumper

Page 33

All of these advanced function options are designed to be stored in the

controller in a V-memory or K-memory table and downloaded to the module.

The advantages of this method over a communications port on the module

are greater flexibility, easier maintenance, and reduced documentation.

The controller can change any function ªon the flyº if changing process

conditions require (for example, a process needs tighter control, therefore

narrower alarm limits). Any replacement module can be downloaded from

the controller, which eliminates the need for a cable, a laptop computer and

the most recent documentation.

Setting the Module

Before you begin to use the advanced mode of the SIMATIC 505±2557, all of

Configuration

the hardware functions, such as voltage range input levels, type of RTD, _C

Jumper

or _F, etc., should be set up in accordance with the instructions in Chapter 1

and Chapter 2.

Figure 3-1 Configuring the SIMATIC 505±2557 Module for Advanced Features

SIMATIC 505±2557 Installation and Operation Guide

Advanced Function Programming

3-3

Image 33

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 European Agency ApprovalsCommunity CE Approval100 Ohm, 10 Ohm, 120 Ohm RTDs, or Millivolt Inputs DescriptionOperating Modes Word Input to the PLC from the Module Scale Units RTD Input to Digital ConversionSignals EffectOut-of-Range Input Effect of Voltage Input 10 Ohm Copper Input Resolution ResolutionInstalling and Configuring the Module Calculating the I/O Base Power BudgetSelecting 2 and 3 Wire or 4 Wire Operation Installing and Configuring the Module Configuring Temperature or SelectingMillivolt Input Celsius or Selecting DegreesFahrenheit Selecting DataConfiguration Jumper Locations Inserting Module IntoBase Copper Wire Table at 25 Degrees Celsius Wiring the Input ConnectorsPress 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 Introduction Advanced Software FunctionsOverview AdvancedSetting the Module ConfigurationJumper Logging Controller I/OMemory Input and Output Register Offsets Internal Register StructuresInput Registers Input Channel DataPeak/Valley Hold Input Words Input Flag BitsAveraging Output Data RegistersFunction Enable Bits Control RegistersInputs Discrete Handshake Inputs Data Identification Bits OutputsData Loading Process Loading Data into the Simatic 505±2557 ModuleSample 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 Overhead for Functions Enabled When UsingTiming Considerations Timing ConstraintsDefault Function Values Default ValuesDefault Function Values for Simatic 505±2557 Additional Information about Each FunctionDegrees Alarm SetpointsCentigrade or Degrees FahrenheitDigital Filtering Averaging Peak and ValleyHold Flag Bits Hold ResetPrecedence FunctionTroubleshooting Symptom Probable Cause Corrective Action 10 Troubleshooting Flow Diagram17 I/O Register Quick Reference I/O Register Quick ReferenceOr K Memory Configuration Tables Page Addressing Worksheet 18 Open RTD Status Bits Items Unique to the Simatic 505±2557 ModuleTroubleshooting Table B-1 Specifications SpecificationsSpecifications subject to change without notice Jumper Settings Log Sheet Customer Response Business Reply Mail