DeviceNet Network Scanner DVPDNET-SL 5 Sending Explicit Message from Ladder Diagram DVPDNET-SL supports the sending of explicit messages through WPL programs. 5.1 The Principle of Explicit Message Sending 1 Explicit request message (PLC DVPDNET-SL) 4 Explicit response message (DVPDNET-SL PLC) DVPDNET DVP28SV RUN STOP Explicit request message from master 2 DeviceNet DNA02 RJ12 VFD-B Explicit response message from slave 3 ① : DVP-SV MPU sends out explicit request message to DVPDNET-SL according to WPL program. ② : DVPDNET-SL sends out request message to the target equipment. ③ : The target equipment processes the request message and responds DVPDNET-SL. ④ :
DVP-SV MPU stores the response message from DVPDNET-SL to D register. One explicit message transmission is therefore completed. DVP-PLC Operation Manual 14