QUICKDESIGNER Modicon •
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Modbus Slave
CAUTION
Do NOT use this protocol with QP1 devices. It is designed to be used with
ONLY QP2 devices. For example, QPJ-2D100-L2P is a QP2 device.
The drawing shows the setup dialog box for Modicon Modbus Slave. Enter the PLC ID (PLC address).
The slave protocol now supports the full set of modbus commands for reading/writing to ID, OD, OR
and IR type memory.
Refer to the tag variable table for full details on variable types and ranges supported. (Note that Input
types are read/write from the slave QuickPanel, but to the master they are read only.)
Read-modify-write is now supported on OR and IR data types.
The latest version provides for Float and Dword storage formating. You can now reverse the byte order
within the words that makeup float types.
Leading zeros are added to tags that are created automatically - a 4 digit field is used if the original tag
uses 4 digits, else it defaults to a 5 digit field so long as the original tag has a leading zero.
Serial Port Parameters for the Display
Click the Port button to display the Serial Parameters dialog. The following settings are recommended
for Modicon Modbus Slave
Elect. Format RS232C
Baud Rate 9600
Data Bits 8
Parity Even
Stop Bits 1
Handshake None
Click OK to return to the Project Setup dialog box.
Panel Trigger Tag and Watchdog Register
The System button will display the System Configuration dialog box, which is used to select the panel
trigger tag and setup the watchdog register.
The Panel trigger tag is a register in the PLC that can be used to select a panel for display. Each panel
has a unique ID number which is displayed when you save or open a panel.
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