Siemens 505-2557 installation and operation guide Installing and Configuring the Module

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2.1Installing and Configuring the Module

The installation of the SIMATIC 505±2557 Sixteen Channel RTD Input

Module involves the following steps:

	1.	Planning the installation
	2.	Configuring the module
	3.	Inserting the module into the I/O base
	4.	Wiring the module input connector
	5.	Checking module operation
	The steps listed above are explained in detail in the following pages.
Planning the	Planning is the first step in the installation of the module. This involves
Installation	calculating the I/O base power budget and routing the input signal wiring to
	minimize noise. The following sections discuss these important
	considerations.
Calculating the I/O	The SIMATIC 505±2557 requires 5 watts of +5 VDC power from the I/O
Base Power Budget	base. Use this figure to verify that the base power supply capacity is not
	exceeded.
Unpacking the	Open the shipping carton and remove the special anti±static bag which
Module	contains the module.

! CAUTION

Handling Static Sensitive Devices

The components on the SIMATIC 505±2557 module printed circuit card can be damaged by static electricity discharge. To prevent this damage, the module is shipped in a special anti±static bag. Take the following precautions before re- moving the module from the bag, when opening the module, and when handling the printed circuit card during configuration.

Discharge any static potential by holding the module in its anti±static bag and touch the metal chassis of the PLC. During the configuration step, hold the printed circuit card only by its edges. Do not touch the circuit card pin connectors, or solder connections.

After discharging any static build±up, remove the module from the static bag. Do not discard the static bag. You will need it for the following configuration procedure.

2-2

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 Approval Agency ApprovalsEuropean Community CE100 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 ConversionEffect SignalsOut-of-Range Input Effect of Voltage Input 10 Ohm Copper Input Resolution ResolutionCalculating the I/O Base Power Budget Installing and Configuring the ModuleSelecting 2 and 3 Wire or 4 Wire Operation Installing and Configuring the Module Configuring Selecting Temperature orMillivolt Input Selecting Data Selecting DegreesCelsius or FahrenheitConfiguration Jumper Locations Module Into InsertingBase 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 Advanced Advanced Software FunctionsIntroduction OverviewConfiguration Setting the ModuleJumper Controller I/O LoggingMemory Input Channel Data Internal Register StructuresInput and Output Register Offsets Input RegistersPeak/Valley Hold Input Words Input Flag BitsAveraging Output Data RegistersControl Registers Function Enable BitsInputs 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 Constraints When UsingTiming Overhead for Functions Enabled Timing ConsiderationsAdditional Information about Each Function Default ValuesDefault Function Values Default Function Values for Simatic 505±2557Degrees Fahrenheit Alarm SetpointsDegrees Centigrade orDigital Filtering Peak and Valley AveragingHold 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