Instruction manual

5-28 2. MITSUBISHI PLC
3. PLC programming software communication setting
For communication specifications between the PLC programming software and the
PLC, the communication parameter settings for the ZM-300 series and the PLC can be
used. Select [Comm. Parameter] from the [System Setting] menu and check the
settings in the [Comm. Parameter] dialog.
• Baud rate setting
There will be no problem if the setting for [Baud Rate] in the [Comm. Parameter]
dialog of the ZM-71SE editor is not consistent with the baud rate setting on the PLC
programming software. The baud rate set on the PLC programming software is
automatically selected when communications (monitoring, etc.) are performed.
When the ZM-300 series is turned off and back on, the setting for [Baud Rate] in the
[Comm. Parameter] dialog becomes valid again.
4. Transferring the ladder communication program
When transferring screen data, the ladder communication program is also transferred.
To transfer the ladder communication program only, follow the procedure described
below.
1) Select [Ladder com. prg.] in the [Transfer] dialog, and click [PC->].
2) The dialog shown on the right is
displayed. Select “MelQHCpQ.lcm” and
click [Open]. The program is
transferred to the ZM-300 series.
Notes on Ladder Transfer Function
1. When [Ladder Tool] is selected for a modular jack, monitor registration on the PLC is
prohibited so that the screen display speed becomes slower than usual during
communications between the ZM-300 series and the PLC even if the PLC programming
software is not started.
2. Also, when the ladder program is transferred in the RUN mode of the ZM-300 series,
communications are synchronized; therefore, the performance of both the ZM-300
series and the PLC programming software decreases.