Advanced settings

Many of the Communication Driver included in the Operations Integration Supervisory Servers folder have a common set of advanced communication settings. These settings are in addition to the object parameters that are described in the documentation for your specific Communication Driver.

To determine if your Communication Driver has these settings, right-click Configuration. If your Communication Driver has these settings, you will see the Add ChannelSelector Connection in the context menu options.

You might need to change these settings if the Communication Driver behaves unexpectedly during run time, but the default settings should work for most network configurations.

To change the advanced settings for a ChannelSelector object

1. In the OI Server Manager, navigate to the Configuration node.

   1. Expand the Operations Integration Server Manager node, expand the node group, and then expand Local.

   2. Expand the Communication Driver.

2. Right-click the Configuration node and select the Add ChannelSelector Connection option. The object's parameters are displayed in the details pane on the right.

3. In the right pane, select Advanced.

   The Advanced Settings dialog appears.

   

4. Change the settings as needed.

   Group	Setting	Description
   Timeout	Start message	The timeout (in milliseconds) to receive the start of a message.
   	End message	The timeout (in milliseconds) to receive the end of a message.
   	Interval between char	The interval (in milliseconds) between characters in a message.
   	Wait CTS	The timeout (in milliseconds) for the Clear to Send wait.
   Handshake	Control RTS	Specifies whether to use the Request to Send control.
   	Verify CTS	Specifies whether to use the Clear to Send verification type.
   Simultaneous Requests	Maximum	The maximum number of requests (up to 32) that can be sent at the same time to all devices in the channel. Note: There is a limit of 100 total simultaneous requests across all channels in a server instance, which means you can have three channels at 32 each, four channels at 24 each, five channels at 20 each, and so on up to 100 channels at 1 each, or any combination thereof.
   	Maximum per station	The maximum number of requests that can be sent at the same time to a single device in the channel. The limit varies, so for more information, see the documentation for the specific Communication Driver.
   Protocol	Station	The station number or ID of the channel, according to the device protocol being used. Some master/slave protocols consider the Communication Driver to be another slave device and therefore require it to have its own station ID. For more information, see the documentation for the specific Communication Driver.
   	Retries	The number of times that the Communication Driver will retry the same command before generating a communication error.
   Buffers Length	Tx Buffer	The transmission buffer length (in bytes).
   	Rx Buffer	The reception buffer length (in bytes).
   Disable DTR		When disabled, no DTR signal is sent before starting a communication.
   Enable IR		Available only on Windows Embedded target systems. Enables use of Infrared interface (COM2 port) rather than a standard serial port to communicate with devices.

5. Select OK to close the Advanced Settings dialog box.

6. Select Save.

   The advanced settings are saved.