Siemens 505-2557 installation and operation guide Cable Grounding

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Wiring the Input connectors (continued)

Earth Ground

Figure 2-7 Cable Grounding

NOTE: The SIMATIC 505±2557 is isolated channel group to channel group. Each group consist of 2 input channels. Shields within a channel group may be terminated together at either G terminal. Siemens recommends that the shield wire be soldered or crimped to the wire connected to the G terminal.

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Installation

SIMATIC 505±2557 Installation and Operation Guide

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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 ConversionOut-of-Range Input SignalsEffect Effect of Voltage Input 10 Ohm Copper Input Resolution ResolutionSelecting 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 Celsius or Selecting DegreesFahrenheit Selecting DataConfiguration Jumper Locations Base InsertingModule Into 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 AdvancedJumper Setting the ModuleConfiguration Memory LoggingController I/O Input and Output Register Offsets Internal Register StructuresInput Registers Input Channel DataPeak/Valley Hold Input Words Input Flag BitsAveraging Output Data RegistersInputs Function Enable BitsControl Registers 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 Hold AveragingPeak and Valley 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