Fieldbus, interfaces

JCOP WORKSHOP 04-05 NOVEMBER 2015 Fieldbus, interfaces Current use of fieldbuses in experiments: ◦ (e.g. Wiener LV PS, CAEN mainframe) ◦ CAN (e.g. Wiener VME, Iseg, ELMB) ◦ RS232/RS485 ◦ USB ◦ (e.g. PLC based applications) ◦ Other: GPIB, Parallel, propriety bus

◦ WorldFIP, one of the CERN standards, is not used in the experiments

JCOP WORKSHOP 04-05 NOVEMBER 2015 Fieldbus, interfaces Clearly the choice of the fieldbus is not completely free, it is bound to the device you want to control There is a trend to (or at least a demand for) Ethernet based communication with devices ◦ Point to point, or ‘bus’-like such as EtherCAT What is the longer term (beyond LS3) future of CAN bus? Anybody using EtherCAT devices? Anybody considering wireless?

JCOP WORKSHOP 04-05 NOVEMBER 2015 Fieldbus, interfaces What buses are likely to be used in the experiments?

CANbus

JCOP WORKSHOP 04-05 NOVEMBER 2015 Fieldbus, interfaces Current use of fieldbus (CAN) interfaces in experiments: ◦ Kvaser PCI (original CANbus interface standard) ◦ Anyone still using these? ◦ Peak PCI or USB (CANbus interface for Iseg devices) ◦ Systec USB (current ‘de-facto’ standard) RS232 or USB ‘over Ethernet’ (e.g. Digi portserver and Digi USB anywhere) can add flexibility What is long term perspective of USB-CAN interfaces? ◦ LHCb sees no reason to change, others might consider change for Ethernet-CAN (LS2) ◦ EN/ICE support for systec will continue beyond LS2

Thanks to Geraldine Thomas for her input

JCOP WORKSHOP 04-05 NOVEMBER 2015 Fieldbus, interfaces New generation of interfaces ◦ Experiments expressed interest in Ethernet – CAN interfaces ◦ General interest in homogenizing the CAN hardware and software across CERN ◦ Survey and extensive validation tests performed by EN/ICE ◦ Newly supported and recommended solution: Anagate ◦ Tabletop boxes with 1/2/4 CAN ports ◦ 1U rack mounted with 12 CAN ports ◦ DIN rail mounted with 2/4/8 CAN ports ◦ Recommended solution for new developments

Thanks to Geraldine Thomas for her input

JCOP WORKSHOP 04-05 NOVEMBER 2015 Fieldbus, interfaces Although support for current interfaces will continue, the recommended solution for new developments is the Anagate Ethernet - CAN gateway Keen interest by experiments (CMS); what is the operational experience? ◦ CMS aims to replace all SYSTEC interfaces by Anagate gateways in the coming months

Thanks to Geraldine Thomas for her input

JCOP WORKSHOP 04-05 NOVEMBER 2015 Fieldbus, interfaces Questions: • What buses are likely to be used in the experiments? • What is the longer term (beyond LS3) future of CAN bus? • Can we converge to a common standard? • Anybody using EtherCAT devices? • Anybody considering wireless? • What is longer term perspective of USB-CAN interfaces? • What is the operational experience with Ethernet-CAN interfaces (anagate)?

JCOP WORKSHOP 04-05 NOVEMBER 2015