Advanced field descriptions – Perle Systems 5500161-40 User Manual

Page 175

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175

Serial Port Profiles

Advanced Field Descriptions

Configure the following parameters:

Idle Timeout

Enable Modbus
Exceptions

Character Timeout

Message 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.

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.

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

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

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