Settings
236 IOLAN SDS/SCS/STS User’s Guide, Version 3.6

Settings

Overview
The I/O Interfaces Setting s window configures the parameters that are global to all I/O channels.

I/O Access Functionality

Field Descriptions
Configure the following parame ters:
Enable I/O Access
to Modbus protocol Enables/disables Modbus as the commun ication 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 gl obal Modbus Slave settings.
See Advanced Slave Modbus Settings on page 237 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 proto col
is enabled
See Modbus I/O Access on page 268 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 268 for function codes and I/O
coil/registration descriptions and Accessing I/O Data Via Tr uePort on page
275 for the Perle API.