Handbook

1

The CALICE project
CAlorimeter for the LInear
Collider with Electrons
DAQ INTERFACE
DAQ INTERFACE
2
SUMMARY
GENERAL SYNOPTIC REMOTE CONTROL
Page 3
GENERAL SYNOPTIC LOCAL CONTROL CASE 1
Page 4
GENERAL SYNOPTIC LOCAL CONTROL CASE 2
Page 5
DAQ EQUIPMENT CONNECTION
Page 6
Page 7
LAL POLICY
SUGGESTED DATAS
Page 8
SUGGESTED COMMANDS
Page 9
3
GENERAL SYNOPTIC REMOTE CONTROL
CONTROL ROOM
ECAL
Motor X
COMMAND BOX
Laptop Windows
INTERFACE
RS422 (Differential)
30m
R232
MAIN AC 115V / 230V
MAIN AC 115V / 230V
Motor Y

• - The COMMAND BOX drives the 2 stepper motors for
  X/Y movements
• The remote LAPTOP, via the 232/422 INTERFACE, is
  connected to the COMMAND BOX with the RS422 LINK
• It sends  LEVEL-1 commands  (ASCII) to the
  COMMAND BOX (left/right moves, reading position,
  etc)

4
GENERAL SYNOPTIC LOCAL CONTROL
CASE 1 WITH LAPTOP
CONTROL ROOM
Laptop Windows
Motor X
COMMAND BOX
INTERFACE
RS422 (Differential)
X
R232
30m
disconnected
MAIN AC 115V / 230V
MAIN AC 115V / 230V
Motor Y
- The RS22 LINK has been disconnected from the
COMMAND BOX - The LAPTOP, which has been moved
LOCALLY, is now connected to the SAME connector
dedicated for the RS442 LINK - The SAME
functionalities as REMOTELY are available
5
GENERAL SYNOPTIC LOCAL CONTROL CASE 2
CONTROL ROOM
CASE 2 WITH CONSOLE
Motor X
COMMAND BOX
Laptop Windows
INTERFACE
RS422 (Differential)
R232
30m
MAIN AC 115V / 230V
Motor Y
MAIN AC 115V / 230V
LOCAL CONSOLE

• - The LOCAL CONSOLE has been connected to the
  COMMAND BOX
• There is a LOCAL MODE switch (inhibits the
  LAPTOP commands) a BRAKE OFF Switch (isolates
  the BRAKE)
• - For each motor, there are 3 basic commands
  (PUSH Buttons) Forward, Backward, ZERO
  position, plus 1 SPARE

6
DAQ EQUIPMENT CONNECTION
Laptop Windows
X
To Be Defined
RS422
???
R232
Y
AC
AC
LAL SCOPE OF SUPPLY
DAQ SYSTEM

• - The purpose is to DEFINE, then SPECIFY the LINK
  between the LAL and the DAQ systems
• QUESTIONS
• ? which datas are required by the DAQ ?
• ? which period of refreshment ? Cyclic, event ?
  On DAQ request ?
• ? which medium is the best choice ?
• Serial (baudrate ? RS232, RS422 ? Protocol ?)
• Ethernet (10/100M ? Protocol ? Client/Server
  architecture ? )

7
LAL POLICY
Laptop Windows
X
To Be Defined
RS422
???
R232
Y
AC
AC
DAQ SYSTEM
LAL SCOPE OF SUPPLY
- WHAT THE LAL SYSTEM PROVIDES WITH THE LAPTOP
? LEVEL-1 commands (password required) the
lowest existing level ( ie frame level) ?
LEVEL-2 set of instructions for remote
requests/commands dedicated for DAQ ? Graphical
HMI for X/Y positions, status of the Motors,
etc - WHAT THE DAQ WILL NOT HAVE ? no
possibility to drive the motors via Level-1
commands for safety reasons ? the only entry
point for the DAQ system will be LEVEL-2 ? no
access to the RS422 medium for layer
abstraction, required if control box changes ?
no shared RS422 medium ? no possibility to
adjust move speed for any axis for safety
reasons - WHAT THE LAL SYSTEM PROVIDES TO THE
DAQ SYSTEM ? LEVEL-2 set of instructions which
are parsed and validated before sending them to
the Control Box
8
SUGGESTED DATAS
Laptop Windows
X
To Be Defined
RS422
???
R232
Y
AC
AC
DAQ SYSTEM
LAL SCOPE OF SUPPLY

• LAL PROPOSES THE FOLLOWING DATA FOR EACH AXIS ,
  provided at LEVEL-2
• the DAQ system has access to them, but it is up
  to it to use them or not
• ? PARAMETERS (constants)
• ? conversion (one Motor Step) / distance (mm)
• ? maximum moves allowed in (mm) and (step) (X
  30cm and Y 20cm)
• ? preset speed for translation
• ? VARIABLES
• ? current position
• ? current gaps between current position and
  maximum move allowed
• ? global status motor health status / stepper
  driver status
• ? end position sensors status
• ? OTHER VARIABLES
• ? console presence status
• ? console switches status  Local Mode  / Y
   brake off  switch / Y brake status
• ? console push-buttons status Forward /
  Backward / Zero / Spare

9
SUGGESTED COMMANDS
Laptop Windows
X
To Be Defined
RS422
???
R232
Y
AC
AC
DAQ SYSTEM
LAL SCOPE OF SUPPLY

• LAL PROPOSES THE FOLLOWING COMMANDS, provided at
  LEVEL-2
• May change further !
• ? READ PARAMETERS rp x/y read all
  parameters for X or Y axis
• ? READ VARIABLES rv x/y read all variables
  for X or Y axis
• ? MOVE AXIS mv x/y value unit for X or
  Y axis, value is according the unit step or µm
  / mm / cm
• ? MOVE ZERO AXIS X ze x/y returns to
  reference position 0 for X or Y axis
• ? Y BRAKE COMMAND bky on/off on validates
  the Y brake / off inhibits it, even if Y motor is
  stopped
• ? POWER MOTOR X pox on/off on validates
  hold torque / off validates detent torque when
  stopped
• ? POWER MOTOR Y poy on/off on validates
  hold torque / off validates detent torque when
  stopped