Direct Online Simulation - Omron NB Series Operation Manual

3-14-2 Direct Online Simulation

NB-Designer supports online simulation operation. The project designed by you can be simulated on
the computer directly with the effect just the same as that of the operation performed after it is
downloaded to the HMI. The online simulator obtains the data from the PLC through NB Unit, and
simulates the operations of NB Unit. Using the online simulator during debugging can save a lot of time
taken by the repeated downloading. The online simulation is classified into direct online simulation and
indirect online simulation, which are described as follows:
Direct online simulation is a kind of simulation method that directly connects the PLC with the serial port
of PC to perform the simulation. Obtaining the dynamic PLC data without need to connect the HMI is its
advantage and only RS-232 port or PLC communication can be used is its disadvantage. During
debugging of PLC with RS-485 port, the adaptor that can convert RS-232 to RS-485/422 must be used.
Note 1 The test time of direct online simulation is 15 minutes. When 15 minutes is exceeded, the following prompt
information "The simulation time is exceeded, please perform the simulation again." will appear. And the
simulator will be closed automatically.
2 The direct online simulation can be done only through the RS-232 communication method.
3 The wiring method of direct online simulation is the direct connection of the PLC programming cable with
the serial port of PC.
4 The PLC using Fins UDP protocol does not support the online simulation.
After the edited program is compiled, press the
Select the HMI No. to be simulated and the COM No. of PC to be connected to the PLC, then click the
"Simulate" button to start the direct online simulation.
NB-series Programmable Terminals NB-Designer Operation Manual(V106)
3 Functions of NB-Designer
button, then the following dialog box will pop up:
3
3-339