INDICO-FNAL (Indico)



DUNE Detector Safety System (DDSS) TPC Electronics for Detector 1Hardware Assumptions & Considerations:Use Beckhoff PLCOPC UA to communicate to Ignition or other SCADA (EPICS, JCOP)Requires TF6100 OPC UA licenseLoop topology – EtherCAT cable redundancyRequires CX5120 PLC or betterRequires TF6221 EtherCAT Redundancy 250+ licensePID loops, filters – may use, include in case, not expensiveRequires TF4100 TC3 Controller Toolbox license25 racks – TPC power supplies are spreads across multiple racksLow voltage power supplies are in 25 racks, bias voltage supplies in 5 additional racks (it could be acceptable to have cables bringing interlock signals from the PLC to the power/bias voltage supplies to go from one rack to another)Small block of I/O in each rackNeed EtherCAT couplers to jump rack-to-rack1 × EK1110 EtherCAT extension (for initial block with PLC only)25 × EK1100 EtherCAT coupler (this could be x30)25 × EL9011 bus end cap (this could be x30)26 × ZK1090-9191-xxxx Ethernet/EtherCAT patch cable (this could be x31)808 power supply interlocks150 channels for PTCs, WIBs, and FEMBs + 658 channels for field cage bias voltage5V interlock signal25 × EL9410 Power supply terminal, 24VDC in, 5V/2A out50 × EL2124 4-channel 5V digital output (need 6 chan per rack, round up to 8) (50x4 channels = 200, we would need 202 EL2124 modules, I think we have to understand which one is cheaper, whether having 202 EL2124 or a smaller number of EM2042 and custom boards that do the 24V 5V translation; custom boards would be needed anyhow to adapt to the 1x or 2x DSUB9 connectors required by the LV or bias voltage supplies)50 fans to monitor speed on25+25 modules of fans to cool warm interface crates (each with 6 channels, 1 channel per warm interface crate)1 fan per warm interface crate? It is actually 4 fans on each crateMeasure fan speed – The idea could actually be that the the module provide a simple level indicating that the fans for one warm interface crate (or for 6 interface crates) are all spinning correctly. At this time both Terri and I don’t think that we want the PLC to control the speed of the fans.If 5V – Use EL1124 4-channel 5V digital input module – sample fast enough? If I read the manual correctly it looks like it is sampling at ~20 MHz, this is more than sufficientIf 24V – EL1502 and EL1512 countersOther method? – SBND Slow Control Chassis uses MAX31790 tachometer IC, but not feasible for us, as we are not making custom circuit boards300 RTDs to measure, 300 heaters to power6 RTDs & 6 heaters per flange × (25+25) flanges (there is a total of 150 flanges, plus eventually another 75 for the photon detector system, not sure that we have 6 RTDs and 6 heaters per flange, I think 4 is more likely, this gives 600 RTDs + 600 heaters for the TPC electronics plus another 300+300 for the photon detector system; also I think that one RTD per flange is enough, having 4 heaters allows for a more distributed heating, the temperature should be rather uniform….)1 × EL3052 2-channel 4-20mA analog input – measure temperature/rel. humidity sensorUse with Dwyer RHP-2W4D-LCD humidity/temperature/dew point transmitter150 × EL3202-0010 2-channel 4-wire RTD analog input (I would have only 1 RTD per flange, so this is ok…. It may make sense to use the version with more channels to reduce the number of modules)75 × EL9070 shield terminal – no built-in shield terminal on 4-wire RTD modules25 × EL3681 DMM moduleVery expensive – only for measuring power (nice to have, don’t need)25 × EL9100 Potential supplyProvide power to terminals providing power to heaters12V heaters?75 × EL2024-0010 4-channel 12V digital output (we may need more of these…..)150 PTC cards to communicate with750 WIBs, but new PTC designed to talk to them, so we do not need toSupport ProfiBUS, ProfiNET, and EtherCAT – we want EtherCATNeed fiber optic connectionEK1521-0010 1-port Singlemode fibre optic junction – up to 20km EK1521 1-port Multimode fibre optic junction – up to 2kmEK1561 1-port plastic optical fibre (POF) junction – up to 50m What we use on ICARUSCheapest optionCan be cut to length and wired in the field (others come in preset lengths only)1500m × Z1190 POF cable30 × ZS1090-0008 set of 10 POF connectorsI would be interested in understanding the cost difference between the EK1521 and the EK1561. We don’t need transmission over distances above 50m, but the kind of optical connection used in the EK1521 is more common in electronics than the one used in the EK1561 – on the PTC side the cost difference is zero, and the fibers used by the EK1521 are standard – and we use a lot of them in DUNE)Redesigned PTC card needs matching connector – must coordinate with PTC designerOther Hardware26 × 24V power supply – to power PLC and I/O25 × 12V power supply – to power heatersDIN railWireTerminal blocksFuses or circuit breakersD-sub connectors for Wiener power supply interlocksCan we mount the DIN rail with power supplies and PLC I/O to a panel in each the rack?Easy to assembly and modifyNoise concerns? – ICARUS TPC people claim to see noise from nearby PLC I/O, has not been addressedI think we need to understand this. We just have the power supplies in the racks, which is probably different from what ICARUS does. Our power supplies should not be too sensitive to the eventual switching noise of a PLC system.Or need enclosures for all hardware?Need to find rack-mount enclosure – enclosures on ICARUS look ugly, as they were not intended to go in racks, but later put in racks to save spaceNeeds door and vents (for airflow)See above, probably not ................
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