Rockwell-automation 1402-LSM Line Synchronization Module Installation Manual de usuario descargar pdf (Pagina 42)

Chapter 4

Application Information

4–8

Discrete Inputs to the PLC–5 Continued

The Close Breaker discrete input to the PLC–5 indicates that all

synchronization criteria have been met and it is acceptable to close the

breaker between the Synchronizing Bus and the Reference Bus.

The Synchronization Failure discrete input to the PLC–5 indicates a

synchronization error. When this bit is set, the LSM cannot perform

Synchronizing Bus / Reference Bus synchronization.

When the Synchronization Failure discrete input to the PLC–5 is set, the

Synchronization Status word in the Synchronizing Bus Error Parameters

indicates the reason for synchronization failure.(See Appendix B Table B.6)

The Powered–up Bit discrete input to the PLC–5 indicates that the LSM has

completed internal self– tests and is ready to perform block transfers with the

PLC–5.

Included in Appendix B is a sample PLC–5 ladder program that interfaces

with the LSM. The data files used are described in Tables 4.4 and 4.5.

ATTENTION: Executing the Control Request BTW from the

sequencer file, or at a similar rate of speed could cause improper

operation of the LSM.

Int

erf

acing

LSM

ontinu

Ladder Program Description

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 86 87

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Rockwell-automation 1402-LSM Line Synchronization Module Installation Manual de usuario Pagina 42