Newport ESP300 motor controller¶

Bliss controller for Newport ESP300 / ESP301 motor controller.

The controller communicates via serial line. Baudrate is configured on the controller. Check it before configuring in bliss.

For newport ESP compatible stage, motor is automatically configured on controller reset.

Supported features¶

Encoder	Shutter	Trajectories
No	No	No

Configuration¶

Example:

controller:
  class: NewportESP300
  module: newport
  serial:
    url: tango://id00/serial_001/1
    baudrate: 19200
  axes:
    - name: esp1
      steps_per_unit: 1
      velocity: 12.5
      acceleration: 50.0
      tolerance: 0.001

Specific methods¶

Read stage identification:

NEWPORT [3]: esp1.read_stage()
STAGE : VP-25XA, SNB147328

Read motor type:

NEWPORT [7]: esp1.read_motor_type()
Motor type : DC servo motor (single analog channel)

Read hardware configured limits:

NEWPORT [4]: esp1.read_limits()
    Out [4]: ('-12.5000', '12.5000')

These limits can be set to bliss software limits using smc1.configure_limits().

Read PID related parameters:

NEWPORT [8]: esp1.read_pid()
    Out [8]: {'dc_proportional_gain': '136.000', 'dc_integral_gain': '341.000', 'dc_derivative_gain': '1365.00', 'dc_following_error': '0.1000'}

NEWPORT [9]:

To change this parameters, use smc1.set_pid(dict_of_pid_parameters).

At controller level, two methods can be used to reset and/or clear_errors:

esp1.controller.clear_errors()
esp1.controller.reset()