Prosoft-technology 5201-MNET-101S Manual do Utilizador descarregar pdf (Página 112)

Reference IEC-101 Slave ♦ ProLinx Communication Gateway

Protocol Manual IEC 60870-5-101 v3 Slave (Firmware version 3.xx)

Page 112 of 159 ProSoft Technology, Inc.

August 6, 2010

The following illustration shows how these parameters are implemented:

If a database bit address (1 to 64000) is present, the application may consider

the point with an invalid flag if the previous logic checks the IV bit as 1 during

consecutive IV Check Delay scans. The IV bits would have to be reset to 0 to set

the point to valid state.

The IV DB bit defined for each point can be unique, or many points may share

the same bit. The last case could be used when the points on an I/O gateway are

to be considered as one set. In this case only a single bit is required. For a point

that is the result of a computation, the valid quality state could be set for each

point individually.

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Prosoft-technology 5201-MNET-101S Manual do Utilizador Página 112