Alarm Devices

Learn how to configure Alarm Devices

2 minute read

Alarm devices can be used to generate output signals based on a defined input source. Common use is to control RGB light or generate beeper signals.

How To Configure Alarm Device Input Signal

The input signal for the alarm devices are configurable via xxx.link.json. Per default the Alarm device input for the beeper and light is linked to Motorcortex states.

Inside base.link.json, the state is linked to the Beeper/Light input.

    {
      "Name": "From Logic To Alarm",
      "SystemMode": "All",
      "Enable": true,
      "Links": [
        {
          "Source": {
            "Path": "root/Logic/state"
          },
          "Destination": {
            "Path": "root/AlarmDevices/Beeper/input"
          }
        },
        {
          "Source": {
            "Path": "root/Logic/state"
          },
          "Destination": {
            "Path": "root/AlarmDevices/Light/input"
          }
        }
      ]
    },

Default motorcortex state information (root/Logic/state):

  INIT_S = 0
  OFF_S = 1
  IDLE_S = 2
  PAUSED_S = 3
  ENGAGED_S = 4
  HOMING_S = 5
  FORCEDIDLE_S = 6
  ESTOP_OFF_S = 7

  OFF_TO_IDLE_T = 102
  OFF_TO_REFERENCING_T = 105
  IDLE_TO_OFF_T = 201
  PAUSED_TO_IDLE_T = 302
  IDLE_TO_ENGAGED_T = 204
  ENGAGED_TO_PAUSED_T = 403
  TO_FORCEDIDLE_T = 600
  RESET_FORCEDIDLE_T = 602
  TO_ESTOP_T = 700
  RESET_ESTOP_T = 701

You can change the “Source Path” to your preferred input path for example a user-parameter.

How To Configure Alarm Device VIA DESK-Tool

You can configure the alarm device parameters via the DESK-Tool, the provided example is for Light:

Desk parameter: Prefix: root/AlarmDevices/Light/..	Description:
input	Input parameter: default: root/Logic/state.
defaultOutput	If no sequencer is active this value is written to the output.
output	Generated output based on the input, defaultOutput and configured sequencer.
../Sequencer0x/..
channel_0x	5-channel configurable sequence.
durations	5-channel, time of active signal in secondes, applied to every channel_0x.
ids	If the input is equal to one of the defined ids the sequencer is Enabled, `default not used = -1.`

Example Constant Output Signal: ch0 output = 1 if input = 1:

Example Interval Output Signal: ch0 output = switching between 1 and 0 at 1 second interval if input = 1:

How To Link Alarm Device Output To A Digital Output.

Make sure you configured a Digital Output Device via ECAT-tool.

How to configure a Digital In/Out Device?

Open ECAT-Tool and Link root/AlarmDevices/Light/output ch0 to Digital Output01,

How to Link Motorcortex parameter to Digital Output?