8000 Zone2.pdf

32-channel Sequence of Events24V dc, non-isolated, module-powered8127-DI-SE◆◆◆◆◆◆◆◆◆switch or proximity detector inputscaptures events with ¼ ms resolutiondistributed architecture for accurate event recordingline fault detection on all inputspower to all field inputs - simplifies field wiringhi-res time stamp for accurate event sequencinglog event data, e.g. controller status & module alarmsexport data to PC for reporting or analysis24V dc bussed field power requiredResistors are requiredfor line fault detection1kW9kWSafe areaor Zone 2/Div 2 hazardous areaChannel 1 of 32RegulatorsmPRailbus24 VdcBussed Field PowerMODULE SPECIFICATIONSee also System SpecificationINPUTNumber of channels .........................................................32OFF current ...............................................................< 1.2mAON current ............................................................... > 2.1mAShort circuit current..............................................8.6mA (typ)Output resistance ..................................................950Ω (typ)Open circuit output voltage................................8.2Vdc (typ)Line fault detectionShort Circuit .............................................................< 100ΩOpen Circuit.............................................................< 50µAInput voltage range without damage .............0 to +12V dcIsolation (channel to Railbus) ..................................250V acInput sampling rate (all 32 inputs)..................................8kHzInput pulse width ................................................250µS (min)DI counting frequency without loss..................500Hz (max)Applicable specification .........................NAMUR, DIN 19234SOE SPECIFICATIONModule event buffer ........................480 events + 32 overflowEvent recording peak rate (module)...........64,000 events/secDuration of peak rate.......................................7.5 ms (max.)(for 32 SOE channels enabled)Event recording continuous rateModule.................................................220 events/sec (min.)Each of 32 inputs...................................6.8 events/sec (min.)Excessive event threshold (for 32 inputs)...150 events/sec/ch.(for each channel)SOE module time stamping resolution......................125 µsSystem time stamping resolution ..............................250 µsSimultaneous inputs, time stamping errorWithin one module ...........................................0.25 ms (max.)Within one 8000 node........................................1.0 ms (max.)Between 8000 nodes............................................5.0 ms (typ.)(Absolute accuracy will depend on network time reference in use)CONFIGURABLE PARAMETERSSOE Logging .......................................configurable per channelInput filter...................................0 to 8.192secs in 250µs stepsPulse counting ..............................................................on/offLatching.........................................................................on/offRESPONSE TIMEInput module scan time ................................................