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246 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0
Settings
Overview
The I/O Interfaces Settings window configures the parameters that are global to all I/O channels.
I/O Access Functionality
Field Descriptions
Configure the following parameters:
Enable I/O Access
to Modbus protocol
Enables/disables Modbus as the communication protocol for all the I/O
channels.
Default: Disabled
UID This is the UID you are assigning to the IOLAN, which is acting as a Modbus
slave.
Default: 255
Advanced Modbus
Settings Button
Click this button to configure global Modbus Slave settings.
See Advanced Slave Modbus Settings on page 247 for field descriptions.
Allow Modbus TCP
Application (API)
Allows a host running a Modbus/TCP application to communicate to the I/O
channels using the standard Modbus API.
Default: Permanently enabled when
Enable I/O Access via Modbus protocol
is enabled
See Modbus I/O Access on page 278 for function codes and I/O
coil/registration descriptions.
Allow Modbus
RTU/ASCII via
TruePort
Enables/disables serial Modbus application access to the I/O over the network
using the TruePort COM redirector feature.
Default: Disabled
See Modbus I/O Access on page 278 for function codes and I/O
coil/registration descriptions and Accessing I/O Data Via TruePort on page
285 for the Perle API.