Perle Systems Perle IOLAN DS1 - Manual (Page 106)

Serial Port Profiles
106 IOLAN DS1/TS2 User’s Guide, Version 3.4
Modbus Gateway Profile
Overview
Each serial port can be configured as either a Modbus Master gateway or a Modbus Slave gateway,
depending on your configuration and requirements. If your model supports I/O, see
Modbus I/O
Access on page 153 for more information on using the Modbus protocol to access I/O data.
Functionality
The Modbus Gateway profile configures a serial port to act as a Modbus Master Gateway or a
Modbus Slave Gateway.
Failsafe Action When there has been no I/O activity within the specified time (set in the I/O
Interfaces, Settings on the Failsafe Timer tab) and the
Failsafe Timer is
triggered.
Data Options:
z None—The state of the Digital/Relay output remains the same, no change.
z Activate Output—Activates the channel.
z Deactivate Output—Deactivates the channel.
Default: None