André Augustinus 16 June 2003 DCS Workshop General Purpose Monitor

André Augustinus 16 June 2003DCS Workshop 2 General Purpose I/O Many detectors will need (even if you don’t know it yet…)  I/O acquired from individual sensors or inputs through a “dumb” I/O device  These parameters are usually only used for monitoring To display on a screen To store in a database To compare to an error limit and raise an alarm

André Augustinus 16 June 2003DCS Workshop 3 Applications  Temperature reading anywhere on your detector (e.g. PT100)  Any type of analog input Independent measurement of voltage on a device Any sensor with an analog signal  Digital inputs or outputs Monitor a status line of some equipment Control a relay for remote switch on/off

André Augustinus 16 June 2003DCS Workshop 4 General Purpose device  ELMB Atlas development (but used by all LHC experiments)  General purpose I/O fieldbus (CAN) node Up to 64 Analog inputs (0-5V, PT100 (4wire), resistor, …) 8 – 16 Digital inputs 8 – 16 Digital outputs  Radiation tolerant  Low cost (€100 – 150)

André Augustinus 16 June 2003DCS Workshop 5 General Purpose device  Can be used by individual detectors E.g. test of TPC chamber temperature monitoring  Will be used by the central DCS for ‘environment’ monitoring  Will be used in each rack for monitoring

André Augustinus 16 June 2003DCS Workshop 6 Full package  ELMB  Motherboard (or custom board)  Adapters  CAN cable + connectors  Kvaser CAN card (PCI:~ €400)  Power supply  PC + Software  See Sorina’s presentation ELMB OPCserver PVSS II OPC client ELMB framework CANbus Kvaser PCI-CAN

André Augustinus 16 June 2003DCS Workshop 7 Current status ELMB in ALICE  First ELMB application for a detector Sorina is working on the TPC chamber temperature monitoring  A few ELMB available now A lab setup is foreseen (this month ?); to gain experience and to be used as demonstration  Final production is launched by ATLAS ALICE has reserved 175