Справочник Пользователя для Siemens 505-2557

 

Installation

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