Send energy storage timeout signal

What is the range of timeout?

The range of timeout is 10ms ~ 2000ms and the default setting is 300ms. When the timeout is set to 1000ms and the HMI has sent the communication request after 1000ms, if there is no response from PLC, the HMI will resend the next communication request.

What happens when communication delay time is set to 10ms?

When the communication delay time is set to 10ms, the waveform of the communication signal looks like the figure below. After the PLC feeds back the command, the HMI sends the next communication request 14ms later. It indicates that every communication request sent by the HMI will delay 10ms.

What is the range of communication delay time?

The range of the communication delay time is between 0 ~ 255ms and the default setting is 0ms. When the communication delay time is set to 0ms, the waveform of the communication signal looks like the figure below. After the device feeds back the signal, the HMI sends the next communication request 4ms later.

What is the disable-timeout option available for fence devices?

The option disable-timeout was introduced on fence-agents-sbd-4.2.1-65.el8 or later to help with fencing failures caused by timeout leading to the resources be blocked until fencing succeeds or a manual interaction is done. See the article What is the 'disable-timeout' option available for fence devices? for more details about this option.

What is the new disable-timeout option?

A new option called disable-timeout was introduced to all fence devices on the version fence-agents-*-4.2.1-65.el8 or later. The option disable-timeout is true by default, which set the power_timeout option to 0 generating the error each time (default is 60s) that the status of fence_sbd was checked by pacemaker.