Serial Port Profiles
174 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0
General Tab Field Descriptions
Configure the following param eters:
Mode
Destination Slave
IP Mappings
Button
Advanced Slave
Settings Button
UID Range
Modbus/RTU
Modbus/ASCII
Append CR/LF
Specify how the Modbus Gateway is defined on the serial port.
Data Optio ns:
zModbus Master—Typically, the Modbus Master is connect ed to the
Serial Port and is communicating to Modbus Slaves on the network.
zModbus Slave—Typically, the Modbus Master is accessing the IOLAN
through the network to communicated to Modbus Slaves connected to the
IOLAN’s Serial Ports.
Default: Modbus Master Gateway
Click this button to launch the Destinatio n Sl ave IP Settings window, where
you can configure the TCP/Ethernet Modbus Slaves that the Modbus Master on
the Serial Port will communicate with.
Click this button to configure gl obal Modbus Slave settings.
You can specify a range of UIDs (1-247), in addition to individual UIDs.
Field Format: Comma delimited; for example, 2-35, 50, 100-103
Select this option when the Modbus/RTU protocol is being used for
communication between the Modbus Master and Slave.
Default: Enabled
Select this option when Modbus/ASCII protocol is being used for
communication between the Modbus Master and Slave.
Default: Disabled
When Modbus/ASCII is selected, adds a CR/LF to the end of the transmission;
most Modbus devices require this option.
Default: Enabled