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Table of Contents
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Configurable Properties 

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Primary/Secondary

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Info
titleNote

A Connect String is used anytime a phone number is required for Connection types TCPIP, TCP Pool and TCP Listen. The Connect String used with a TCP Listen port can be an IP address in decimal-dotted notation (such as 192.168.1.1:2000) or host name format (such as my.hostname.com:2000). If the selected TCP Listen port is configured with a modem, the Connect String must also have a telephone number. In this case, the complete Connect String may look like this: 192.168.1.1:2000, 1-800-123-4567.

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Default = Not selected. Select for ACM to attempt to connect on the Primary connection if the Secondary connection fails after having already failed from Primary to Secondary.

Secondary Attempts

Default = 2. Number of polls on Secondary connection before automatically attempting to switch back to the Primary connection. Only used if Auto Recover is selected.

Delay bad OPC item status updates until secondary connection polls

Default = Not selected. 

This feature, if selected, will prevent bad quality item updates from going to OPC clients until a poll is attempted on the secondary connection.

The feature will be in effect if:

  • The new feature option is selected.

  • The device is configured to "Switch to Secondary on Failure".

  • The device has a secondary connection configured.

If the conditions are met, failed polls will not send bad quality updates for items. Instead, once the poll on primary is complete ACM will trigger a poll on the secondary connection for the same task at the same priority. Item updates will happen normally while on the secondary connection.