WP13018 Upgrade h1oaf0 18bit-DAC to 20bit-DAC

Fil, Oli, Anamaria, Robert, Ryan S, EJ, Dave:

We replaced the first DAC in h1oaf0 (a 18bit-DAC) with a 20bit-DAC. We reused the IO Chassis ribbon cable and Interface card, they are identical for these types of DAC.

This DAC is only being used by the PEM model.

A new h1iopoaf0 model was installed with the DAC change, its INI file was not changed.

A new h1pemcs model was installed with several changes:

 . All 8 DAC channels are now being driven (previously last channel was not driven)

 . An excitation stage was added to the model, a copy from LLO's PEM models. This comprises two Oscillators and a Noise_generator (see medm below)

 . An additional DACOUTF filter bank as added just prior to the DAC part, each with a x4 filter in the FM10 slot.

A DAQ restart was required.

Attached image shows H1PEM_CS_DAC_DRIVES_CUST.adl MEDM which maps the excitation path from OSC/NOISE_GEN through the filters for each DAC channel. Note on DACOUTF, each FM10 has a 20BitDAC filter, which is a x4 gain.

As an example, image shows chan0 being driven by a 0.1Hz sine wave with amp=1.0. The image is caught when the input is 0.988, but the DAC_chan0 drive is 3.953.

Recovery of PSL camera images.

Fil, Corey, Dave:

Following the replacement of camera power supplies, I recovered the PSL cameras and quad video server images.

DAQ Restart

Dave:

The DAQ was restarted for the h1pemcs model change. There were no problems with this restart.