SLOW CONTROL SYSTEM FOR NP02DUNE SLOW CONTROL WG MEETING 5- AUGUST-2021

General overview

Testing operations in NP02 foreseen for August 2021 have been extended until the end of Q1/2022

Some of the NP04 elements have been inserted in NP02 (i.e., 3 SSPs and Wiener PS)

No new elements expected (experiment has been closed yesterday)

In comparison with the last NP02 actions, the new operations will count on the new WinCC OA 3.16 version

Range of elements to control in SCADA

Testing of:

PMTs

PDs

SSPs (NEW)

LEMs

Cameras

Lights

HV

…

External view

Internal view incomplete: Redesign

of the view in construction

Introduction of 3 SSPs SSP101, 304 and 603 from NP04 migrated to NP02

Wiener PS implemented (2 boards, 8 channels each) and handled via OPC UA

3 channels per board switched to control the SSPs

Each SSP controlled via a Power channel and a Bias channel

Interlocks in placed interfaced with PMTs, LEDs and PD

Information handled via DIM

DIM will remain as information source during the full NP02 testing

Interlocks structure already in placePMTs and SSPs sensitive to the light: security interlock structure already in place

PMTsSSPsLEDs

PD

1

2

1: If PMTs (and now also SSPs) are ON —> Interlock to LEDs and PDs (treated as an additional “light”): Procedure handled via specific system manager

When PMTs OFF —> interlock automatically off and LEDs (PD) channels automatically cleaned

2: If LEDs ON: HW interlock to the PMTs CAEN supply

Procedure not applicable to SSPs because of the Wiener PS —> different approach in place

Status of the CAEN for the PMT and the Wiener for the SSPs are also implemented in the interlocks

Specific interlocks structure for the SSPs

Coding/Panel based

Interlock to LEDs automatised in step 1(previous slide) together with the PMTs

Interlock to SSPs in LEDs ON implemented via control panels

Disable of the bias channels operations when LEDs ON

Next stepsCreate a full internal view of the detector including all new elements

Testing of the LEMs and Grids with the new version of WinCC OA

LEMs and Grids have a very complicated control structure interfaced with specific PS (LEMs) and positions (for the Grids) interlocks

OVCs protection in a quite sophisticated sw mechanism

Run control structure created last summer automatising the full operational regime of both LEMs and Grids

Exportable if needed to any other system

Run Control structure for LEMs and Grids

Specific variables of the systems already predefined

When the table is confirmed it automatically triggers and entry to the e-log for information including the full setup

When the script is launched the full run is sequentially executed

Structure exportable to

any other system