Safety

  2 minute read  

The main function of the safety tab is to provide information about the integrated safety program and SAFETY PLC hardware. The Tab provides a visualization of connected signals and parameters that can be read out and are described in this section. The tab shown is used for the Generic Control Case but this can be adapted to any safety system.

image not found

Visualization of the Safety Project installed to the safety PLC. The Safety project is composed out of INTERLOCKS FUNCTIONS and ACTIONS that are used in combination with motorcortex:

  • iNoSWEStop, is a non safe-signal but safety-critical. The iNoSWEStop is used in combination with safeAnd, to make it a safe signal.
  • Watchdog100ms is implemented in case task freezing on the Motion Controller. It expects a pulse with a maximum time of 100ms for a high output , exceeding 100ms the output is low.
  • safeEstop checks if the EstopButtonChannel1 and EstopButtonChannel1 is triggered, if not the output is high, else the output is low.
  • safeAnd is a combination block that checks if all inputs are high. If all inputs are high the output is high, else the output is low.

The Safety PLC provides information about the state of the Safety PLC and which safety project is applied.

  • The Run Lamp is green if the Safety PLC receives a run command, else LED is switched off.
  • The Acknowledge button is linked to the iErrorAcknowledge. Pressing the Acknowledge button resets the INTERLOCK FUNCTIONS. So that the warnings and error are reset.
  • The Project CRC is a hex number representation of the safety project applied to the safety PLC.
  • The Serial Number is the Safety PLC serial number.
  • The Logic State defines the state of the Safety PLC. The states are: OFFLINE, RUN, SAFE, START, PREPARE, RESTORE or PROJECT-CRC-OK.
  • The Safety PLC SDOs can be read out after pressing the Read SDOs button. This wil request the core temperature and voltage.

The FSoE Communication provides information about the connected slaves.

  • Cmd to/from slave states are: FailSafeData, Reset, ProcessData, Connection or Parameter.
  • The connection ID provides information about the slave ID.