Configuring the

The SIMATIC 505±2557 must be configured for 10 Ohm copper, 100 Ohm

Module

platinum or 120 Ohm nickel RTDs (2, 3 or 4 wire) or millivolt range and

 

digital filtering/no filtering mode before wiring the input connectors and

 

inserting the module into the I/O base.

 

 

 

NOTE: As shipped, all input channels are configured 100 Ohm platinum, 3

 

wire RTDs, degrees Centigrade and digital filtering enabled.

 

 

 

Configuring the module is a two step process. Hardware jumpers are

 

positioned to provide proper gain and lead wire compensation for either 3

 

wire or 4 wire RTDs. DIP switches are provided to inform the

 

microprocessor the changes made to the hardware.

 

Changing the module input channel configuration involves the following

 

steps:

 

1.

Selecting temperature or millivolt measurement via DIP switch

 

2.

Selecting 3 or 4 wire compensation

 

3.

Selecting 100 Ohm platinum, 120 Ohm nickel or 10 Ohm copper input

 

 

mode for each channel

 

4.

Selecting standard login mode (16WX) or Advanced Operating Mode

 

5.

Selecting digital filtering or no filtering for the module

 

6.

Selecting degrees C or F for the module

 

7.

Selecting Engr units or SCALE units for module

 

8.

Logging the configuration jumper settings for future reference

 

Each of these steps is described in the following sections.

SIMATIC 505±2557 Installation and Operation Guide

Installation

2-3

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Siemens 505-2557 installation and operation guide Configuring