Real Time Automation, Inc.
18
1-800-249-1612
Modbus RTU Master Device Configuration
The bottom area of the Modbus RTU Master Configuration page lets you configure up to 32 external
Modbus RTU Slave devices.
1)
To add additional Slave connections, click the -Select- dropdown under Modbus RTU Master
Device List and select
Add Generic Slave
option.
-To remove a device, navigate to the slave to delete using the
<<
and
>>
buttons and click
the
Delete Slave
button.
-To create a new slave with the same parameters already configured from another slave,
click the -Select- dropdown and select the
Add from Modbus RTU
X
option (where X
represents the slave you wish to copy parameters from). Once created, you can make any
additional changes needed to that new slave.
2)
The
Enable
check box should be selected for the device.
3)
Enter a
Device Label
to identify the device within the gateway.
4)
Enter a unique Modbus RTU
Slave Address
for the device on the network.
5)
Force Function Code 15/16 for Single Writes:
Only select this if the Modbus RTU device does
not support Modbus Function Code 5/6.
6)
Enable 0-Based Addressing
: Check ONLY if the Slave you are connecting to begins their register
numbering at 0 OR they specify that their device addresses are 0-based.
