Siemens SIMATIC TI500 Spezifikationen PDF herunterladen (Seite 258)

Power and Compatibility

B-8

SIMATIC 545/555/575 System Manual

Module Compatibility with CPUs (continued)

High Speed Counter modules (PPX:505–7002) manufactured prior to May

1990 will not operate properly in a 545/555 controller’s local base

configuration. If a High Speed Counter is placed in a 545/555 controller’s

local base configuration, the WX inputs will intermittently set to FFs, which

could cause improper operation.

NOTE: High Speed Counter modules manufactured prior to May 1990 that

have been modified for 545/555 controller’s local base compatibility have the

letter A immediately following the serial number.

Before you install Series 505 High Speed Counter modules into a 545/555

local base, check the serial number of each module to ensure that it is

compatible with the 545/555 local base. Refer to Figure B-1 to understand

how to read the serial number.

WARNING

Do not use an unmodified Series 505 High Speed Counter module

manufactured prior to May 1990 in a 545/555 controller’s local base.

In a Series 505 High Speed Counter, WX inputs may change to FFs that could

change the High Speed Counter outputs to an unsafe condition. This could

result in death or serious injury to personnel, and/or damage to equipment.

Refer to the Safety Considerations Guidelines, PPX:2588015–0003 (shipped with

each 545/555 controller), for details. Follow the safety installation guidelines

recommended by Siemens Energy & Automation.

Series 505 High

Speed Counter for

545/555

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Siemens SIMATIC TI500 Spezifikationen Seite 258