Serial Port Profiles

General Tab Field Descriptions

Configure the following parameters:

Mode

Specify how the Modbus Gateway is defined on the serial port.

 

Data Options:

 

z Modbus Master—Typically, the Modbus Master is connected to the

 

Serial Port and is communicating to Modbus Slaves on the network.

 

z Modbus 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

Destination Slave

Click this button to launch the Destination Slave IP Settings window, where

IP Mappings

you can configure the TCP/Ethernet Modbus Slaves that the Modbus Master on

Button

the Serial Port will communicate with.

Advanced Slave

Click this button to configure global Modbus Slave settings.

Settings Button

 

UID Range

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

Modbus/RTU

Select this option when the Modbus/RTU protocol is being used for

 

communication between the Modbus Master and Slave.

 

Default: Enabled

Modbus/ASCII

Select this option when Modbus/ASCII protocol is being used for

 

communication between the Modbus Master and Slave.

 

Default: Disabled

Append CR/LF

When Modbus/ASCII is selected, adds a CR/LF to the end of the transmission;

 

most Modbus devices require this option.

 

Default: Enabled

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IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0

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Perle Systems 5500161-40 manual Destination Slave, IP Mappings, Advanced Slave, Settings Button UID Range, Modbus/RTU