Sending Explicit Message From Ladder Diagram; Principle Of Explicit Message Sending - Delta DVPDNET-SL Operation Manual

5 Sending Explicit Message from Ladder Diagram

DVPDNET-SL supports the sending of explicit messages through WPL programs.
Note:
Different PLC corresponds to different device addresses. For details, please refer to Input and Output
Mapping Areas in Section 4.2. We take DVP-SV as the PLC for description below.
5.1

Principle of Explicit Message Sending

①: The PLC sends the explicit request message based on WPL program to DVPDNET-SL.
②: Then DVPDNET-SL transfers the request message to the target equipment.
③: The target equipment processes the request message and replies with a response message to
DVPDNET-SL.
④: The PLC stores the response message from DVPDNET-SL to D register to finish one explicit message
transmission.
DVP-PLC Operation Manual
DeviceNet Network Scanner DVPDNET-SL

Explicit request message
(PLC DVPDNET-SL)


Explicit response message
(DVPDNET-SL PLC)

DV PDNE T DV P28SV
RUN
STOP
Explicit request message

from master
Explicit response message
from slave
DeviceNet
DNA02

RJ12
VFD-B
15