lbt ao software components a. puglisi, arcetri, 21 th feb 2005 lbt ao software components alfio...

LBT AO software components

A. Puglisi, Arcetri, 21th Feb 2005


Alfio PuglisiLuca Fini

Osservatorio Astrofisico di Arcetri, Florence, Italy



● Hardware controllers

● Tested configurations

● Shared memory buffers

● IDL server

● Python scripting

Summary



MVxxSTATUSMvxxERRMSGMVxxCURPOSMvxxLOENDMvxxHIENDMVxxSPEEDMvxxHISPEED

MVxxTGTPOSMvxxENABLE..........

RTDB Var Set

User prompt/GUI /

Automatic script N

oti

fy

RS232 over Ethernet

MotorController

Basic method for position control using RTDB variables

Two types of variable: global and private.

Commands are implemented as writes to global variables. Answers as writes to private variables

Mx



MV01STATUSMV01ERRMSGMV01CURPOSMV01LOENDMV01HIENDMV01SPEEDMv01HISPEEDMV01TGTPOSMv01ENABLE

MV02STATUSMV02ERRMSGMV02CURPOSMV02LOENDMV02HIENDMV02SPEEDMv02HISPEEDMV02TGTPOSMv02ENABLE

MV03STATUSMV03ERRMSGMV03CURPOSMV03LOENDMV03HIENDMV03SPEEDMv03HISPEEDMV03TGTPOSMv03ENABLE......

RTDB Var Set

User prompt/GUI /

Automatic script

RS232 over Ethernet

Motor #1Controller

RS232 over Ethernet

Motor #2Controller

RS232 over Ethernet

Motor #3Controller

Mx

Mx

Mx



MVxxSTATUSMVxxERRMSGMvxxCURPOSMVxxLOENDMvxxHIENDMVxxSPEEDMvxxHISPEED


RTDB Var Set

ApplicationProgram

Noti

fy

MxRS232 over Ethernet

Old steppercontroller

Changing a component transparently

RS232 over Ethernet

New steppercontroller

Mx



MVxxSTATUSMVxxERRMSGMvxxCURPOSMvxxLOENDMvxxHIENDMVxxSPEEDMvxxHISPEED


RTDB Var Set

Test program

Noti

fy

RS232 over Ethernet

Steppercontroller

Testing components using variables

AND/OR

Text prompt Mx



WFS

RTR

N

E

T

W

O

R

K

Tested configuration: Arcetri WFS lab

MSGLIB

MsgDRTDB

MS

GLIB

MSGLIB

MS

GLIB

CO

MM

IBRTRctrlMSGLIBMSGLIB

GUI

CO

MM

LIBWFS

ctrl

MSGLIB

MSGLIB

ChUIM

SG

LIBIDL

process

● Many different interfaces in parallel

● No arbitration, since it is a test environment

Ethernet/RS232converter

Shar

ed m

emor

y



Shared memory buffers

Ansynchronous buffers

Synchronous (FIFO mode)

Producer

Shared memory

Consumer #1 Consumer #2 Consumer #3

Producer

Shared memory

Consumer

1 2 3 4 5

1 4 5

1 2 3 4 5

1 2 3 4 53 3



X linear stage

WFS

N

E

T

W

O

R

K

Tested configuration: Linear stages test in Potsdam

MsgDRTDB

MSGLIB

MS

GLIB

MSGLIB

MS

GLIB Ethernet/RS232

converter

LAPTOP COMPUTER (!)

GUI

MSGLIB

Stagesctrl

MSGLIB CO

MM

LIB

Stagesctrl

MSGLIB CO

MM

LIB

Stagesctrl

MSGLIB CO

MM

LIB

Y linear stage

Z linear stage



N

E

T

W

O

R

K

Tested configuration: Arcetri P45 lab

COMMLIB

Mirrorctrl

MSGLIB

MSGLIB

MsgDRTDB

MS

GLIB

MSGLIB

MS

GLIB

MSGLIB

IDLprocess

P45 prototype

MSGLIB

IDLprocess

Shared memory Shared memory

Command path

Fast data path

Ethernet line



N

E

T

W

O

R

K

P45 / LBT672 control with IDL server

N E

T W

O R

KN

E T

W O

R K

MSGLIB

MS

GLIB

MSGLIB

MS

GLIB

MSGLIB

GUIinterface

MSGLIB

textprompt

CO

MM

IB

Mirrorctrl

MSGLIB

Command path

Answer path IDLserverMSGLIB

IDL

Stdin/out

MsgDRTDB



Pythonclasses

MS

GL

IB

MSGLIB

MsgDRTDB

MS

GLIB

MSGLIB

MS

GLIB

Text command prompt

Graphic interface

Python scripts

Python scripting interface

C W

rapp

er

To

cont

roll

erpr

ogra

ms

TCSinterface

TCS



What about CPU usage?

● Loop closed● Realtime display active● Mirror commands monitor● Command line interface● Various graphic interfaces

Only the graphic interfaces use a significant amount of processing power

lbt ao software components a. puglisi, arcetri, 21 th feb 2005 lbt ao software components alfio...

Documents

controller rs232

rtdb variables

mx rs232

private variables mx

idl server n e t w o

rtdb var set test program

linear stage wfs n e

wfs rtr n e t w o r