Prosoft-technology MVI69-MCM Manuel d'utilisateur télécharger pdf (Page 69)

MVI69-MCM ♦ CompactLogix or MicroLogix Platform Ladder Logic

Modbus Communication Module User Manual

ProSoft Technology, Inc. Page 69 of 167

March 22, 2011

3 Ladder Logic

In This Chapter

 Ladder Logic and Firmware Compatibility Note ..................................... 70

 Module Data Object (MCM1ModuleDef)................................................ 71

 Adding the Module to an Existing CompactLogix Project ...................... 75

 Adding the Module to an Existing MicroLogix Project ............................ 79

Ladder logic is required for application of the MVI69-MCM 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 MVI69-MCM Manuel d'utilisateur Page 69