Settings

Enable I/O Access

Enables/disables serial application access to the I/O over the network using the

via TruePort

TruePort COM redirector feature.

 

Default: Disabled

Enable SSL

Enables/disables SSL encryption for the I/O data between the IOLAN and the

Encryption

TruePort host.

 

Default: Disabled

Listen TCP Port

The TCP port that the IOLAN will listen to for I/O channel data requests from

 

TruePort.

 

Default: 33816

Allow I/O Access

Allows serial application access to the I/O over the network using the TruePort

via API through

COM redirector feature via a custom application using the Perle API.

TruePort

Default: Permanently enabled when Enable I/O Access via TruePort is

 

enabled

 

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.

Advanced Slave Modbus Settings

The parameters in this window configure global Modbus gateway settings that apply to all serial ports configured first as the Modbus Gateway profile and then as a Modbus Slave.

Configure the following parameters:

TCP/UDP Port The network port number that the Slave Gateway will listen on for both TCP and UDP messages.

Default: 502

Next Request Delay A delay, in milliseconds, to allow serial slave(s) to re-enable receivers before issuing next Modbus Master request.

Range: 0-1000

Default: 50 ms

Enable Serial When enabled, a UID of 0 (zero) indicates that the message will be broadcast to Modbus Broadcasts all Modbus Slaves.

Default: Disabled

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Perle Systems 5500161-40 manual Advanced Slave Modbus Settings