slow control

for the

lock system

2008-06-09

Markus Kästle

Max-Planck-Institut für Physik

(Werner-Heisenberg-Institut)

9.6.2008 Markus Kästle 2

slow control GERDA lock system

• hardware function tests

• communication

• PLC and Touchpanel programs

• LabView programs (lock system PC)

• next steps

Overview

9.6.2008 Markus Kästle 3

slow control GERDA lock systemhardware function tests

• motors

� tested

�wired

� characteristics

quantified

• pressure gauges

� tested

• vacuum pumps

� tested

9.6.2008 Markus Kästle 4

slow control GERDA lock systemcommunication

lock system PLCcryostat PLC

control room

OPC

Ethernet, S7-communication

lock system

linear pulley

motorsC

AN

open

detector storage

flow controllers

lock system touchpanels lock system control PC

OPC

lock system shutters

lock system sensors clean room monitors

clean room PLC

9.6.2008 Markus Kästle 5

slow control GERDA lock systemcommunication

� flow controllers detector storage� lock system control PC w/ OPC server� linear pulley motors (CAN)� touchpanels

� control room main system (OPC) � cryostat PLC (S7 communication)� clean room PLC (S7 communication)

• clean room monitors• sensors• shutters

communication interfaces

9.6.2008 Markus Kästle 6

slow control GERDA lock system

• program structure definition finalized• basic state machine running• state „PLC init“ runs stable

– detect available motor controllers

– initialization of available controllers

– realtime read-out of status and position

• motor movement control– default parameters defined

• touchpanel control– force screen changes

– block/allow pushbuttons

PLC programming

PLC program progress

9.6.2008 Markus Kästle 7

slow control GERDA lock systemPLC programming

program structure

ma

inp

rog

ram

cycle

error handler

error detection

state machine

TP screenhandler

lock system statedependent tasks

lock system

standard tasks

PLC init

startup

shutdown

measurement

Emergency Stop

standby

move detectors

setup

calibration

on

lyo

ne

, sta

ted

ep

en

de

nt

off

maintenance n

try to activatemotor controller

activation ok?

load defaultparameters

mark mc as„not available“

mark mc as„available“

de-activatemotor controller

try next mc

last mc?

PLC init „done“

n

y

y

9.6.2008 Markus Kästle 8

slow control GERDA lock system

state machine screenoperational concept

is tested

Touchpanel programming

move detectors screenbasic operational concept

is tested

already implemented Touchpanel program parts

9.6.2008 Markus Kästle 9

slow control GERDA lock systemLabView programming

lock system control PC – Tasks

• run LabView „CLEanroomMOnitoring“– control detector storage flow controllers

– log lock system detector movements

– log lock system parameters

– log lock system errors

– log clean room parameters

– monitor lock system

• run lock system OPC server– data connection (PLC to LabView)

– enables special „control room“ control channel

9.6.2008 Markus Kästle 10

slow control GERDA lock systemLabView programming

LabView – screenshots

preliminary

motor controllersstates and errors

lock PLC monitoring detector storage flow control

stringstates

preliminary

PLC show state

log fileconfiguration

lock sensorshow states

flow controllershow states

single storage and summarized flows

flow controllerset values

9.6.2008 Markus Kästle 11

slow control GERDA lock systemnext steps

• detail interfaces• continue wiring• program PLC

– motor movement control

– error detection and handling

• program touchpanels– menu structure

• program LabView• test programs• definition / tests of precise movement parameters

– immersion speed

– cable warming time (for detector upward movements)

– …

9.6.2008 Markus Kästle 12

slow control GERDA lock system

conclusion

• main hardware parts are tested and working

• lock system internal interfaces tested

• lock system external interfaces needs detailing

• programming is in progress

→ lock system slow control is still on the way