Perle Systems Perle IOLAN DS1 - Manual (Page 108)

Serial Port Profiles
108 IOLAN DS1/TS2 User’s Guide, Version 3.4
Advanced Field Descriptions
Configure the following parameters:
Idle Timeout Use this timer to close a connection because of inactivity. When the Idle
Timeout expires, the IOLAN will end the connection.
Range: 0-4294967 seconds (about 49 days)
Default: 0 (zero), which does not timeout, so the connection is permanently
open.
Enable Modbus
Exceptions Click this button to launch the Destination Slave IP Settings window, where
you can configure the TCP/Ethernet Modbus Slaves that the Modbus Master on
the Serial Port will communicate with.
Character Timeout Used in conjunction with the Modbus RTU protocol, specifies how long to
wait, in milliseconds, after a character to determine the end of frame.
Range: 10-10000
Default: 30 ms
Message Timeout Time to wait, in milliseconds, for a response message from a Modbus TCP or
serial slave (depending if the Modbus Gateway is a Master Gateway or Slave
Gateway, respectively) before sending a Modbus exception.
Range: 10-10000
Default: 1000 ms