Which are the DNP commands modes supported by the M-7679 R-PAC?

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Which are the DNP commands modes supported by the M-7679 R-PAC?

The M-7679 R-PAC supports Direct-Operate and Select-Before-Operate commands modes. Direct-Operate mode is used when the two-step control is not required. In this case, the command is sent by the Scada and once received by the M-7679 R-PAC it is executed in a single step. Select-Before-Operate requires a two-step process to complete the command. First, a Select instruction allows validating the command parameters. Once the validation is done, the real command will be sent and executed.