Prosoft-technology MVI71-MNET Manual de usuario descargar pdf (Pagina 41)

Ladder Logic MVI71-MNET ♦ PLC Platform

User Manual Modbus TCP/IP Interface Module

ProSoft Technology, Inc. Page 41 of 109

June 23, 2009

3 Ladder Logic

Ladder logic is required for application of the MVI71-MNET module. Tasks that

must be handled by the ladder logic are module data transfer, special block

handling, and status data receipt. Additionally, a power-up handler may be

needed to handle the initialization of the module’s data and to clear any

processor fault conditions.

The sample ladder logic, on the ProSoft Solutions CD-ROM, is extensively

commented, to provide information on the purpose and function of each rung. For

most applications, the sample ladder will work without modification.

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Prosoft-technology MVI71-MNET Manual de usuario Pagina 41