deviceStat.dl

Left clicking an "Emergency" button will immediately stop any motion by any part of the wavefront sensor or calibration unit. Thereafter, any demands for motion are rejected, until the user left clicks on any of the "Safe" buttons. Many mechanisms will then demand to be re-indexed before allowing the execution of any other motions.

Note: This safety feature has no effect on the motion of the Durham deformable mirror (DM) or fast beam-steering mirror (FSM), nor any component of the electronics associated with NAOMI.

For more information, see the NAOMI mechanism software safety page.

Device status

• Directive - the current value of record filed DIR. Values are STOP, CHECK and GO. This field holds the last directive issued to the record. If the record Action State is currently BUSY, the record is currently implementing this directive.
• Mode - the current value of the record field MODE. Values are INIT, MOVE, TRACK, JOG, INDEX, PARK and TEST. The field holds the mode in which the record will operate upon receipt of a directive.
• Target Position - the current value of the record field VAL. The field holds, in engineering units, the target position demanded by a user or other record.
• Target Velocity - the current value of the record field VEL. The field holds, in engineering units, the maximum velocity demanded by a user or other record.
• CommandAck - the current value of the record field ACK. Values are ACCEPT or REJECT. The field is updated by the record upon receipt of a directive. If the value is REJECT, the record will not act upon the directive.
• Error Msg - the current value of the record field MESS. The field is a text string, which the record updates if a directive is REJECTed or the record state transitions to ERROR.
• Action State - the current value of the record field BUSY. Values are IDLE, BUSY or ERROR. When a directive is ACCEPTed, this field will transition to BUSY. Upon successful completion of the directive, the field becomes IDLE. If an error occurs during the operation, the field will become ERROR, and a message (above) is displayed.
• Current Motion - the current value of the record field MIP. The field can be STOPPED, STARTING, MOVING etc. This field is updated by the record during execution of a directive, to indicate to the user what the current stage of operation is.
• Current Position - the current value of the record field MPOS. This field is updated during motion, with the current motor position in engineering units. This is derived from the motor step count (raw position), or from the encoder count (Encoder value) if an encoder is being used.
• Raw Position - the current value of record field RRBV. This field is updated during motion, with the motor step count as provided by the OMS card.
• Encoder value - the current value of record field RENC. This field is updated during motion, with the encoder count as provided by the OMS card.
• Motor Status - the current value of record field MSTA. This field is a status word read from the OMS card, for this axis.
• Power Control/Status - the current values of the record fields PWR and PSTA. They indicate whether the record expects to control the motor power and, if so, what the current power status is.
• Brake Control/Status - the current values of the record fields BRK and BSTA. They indicate whether the record expects to control the motor brake and, if so, what the current brake status is.
• Simulation - the current value of the record field SIMM. This field dictates the simulation level of the record.
• Debug Level - the current value of the record field DBUG. This field dictates the debug level of the record.
• Other indicators - Other text appears in this section to indicate when the record is indexed/not-indexed etc.

• Use Power Status - the current value of the record field UPSB (Use Power Status Bit). The field dictates whether the record will use the input field PSTA to determine if the state of the motor power has been successfully modified.
• Use Brake Status - the current value of the record field UBSB (Use Brake Status Bit). The field dictates whether the record will use the input field BSTA to determine if the state of the brake has been successfully modified.
• Use Encoder - the current value of the record field UEIP (Use Encoder If Present). The field dictates whether the record will attempt to read back (and use) an encoder count from the OMS card.
• Use Auxiliary Power - the current value of the record field UAPB (Use Auxiliary Power Bit). This field dictates whether the record attempts to control motor power using the OMS card's auxiliary output.
• Power Time Out - the current value of the record field PTMO. This field, if non-zero, dictates the time within which the record expects power status feedback to respond to a change in the power state.
• Brake Time Out - the current value of the record field BTMO. This field, if non-zero, dictates the time within which the record expects brake status feedback to respond to a change in barke status.
• Index Algorithm - the current value of record field IALG. This field is the indexing algorithm that will be used in INDEX mode.
• Position Hi/Low Limit - the current values of the record fields PHLM and PLLM. These are the allowed upper and lower limits for target position. Target positions outside these boundaries will result in the record REJECTing a directive to start a move.
• Velocity Hi/Low Limit - the current values of the record fields VHLM and VLLM. These are the allowed upper and lower limits for target velocity. Target velocities outside these boundaries will result in the record REJECTing a directive to start a move.
• Motor Resolution - the current value of the record field MRES. This field informs the record of the number of motor steps per engineering unit so that, for example, it can convert RRBV to MPOS.
• Encoder Resolution - the current value of the record field ERES. This field informs the record of the number of encoder pulses per engineering unit so that, for example, it can convert RENC to MPOS.
• Encoder Deadband - the current value of the record field EDBD. This value is used by the record to determine, when using an encoder, whether the final position achieved after a move is sufficiently close to the demanded target position, or any spontaneous motion detected is sufficient to signal an error. The value is assumed in encoder pulses (not engineering units).
• Acceleration - the current value of the record field ACCL. This acceleration, in engineering units, is passed to the OMS card before each move, for use during the acceleration/deceleration phases of the velocity profile.
• Lookup Table - the current values of the record fields TDIR and TFIL. These specify the path and filename of the record's lookup table file.
• Record Prefix - the name of the record.