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Reference, Installation, and Operations Manual Table of Contents
3-9000-743 Rev S June 2013
Contents v
6.2 Frequency, digital, and analog outputs......................................................... 215
6.2.1 Frequency outputs........................................................................................... 215
6.2.2 Digital outputs................................................................................................. 219
6.2.3 Analog (Current) output................................................................................... 221
6.3 Digital Input............................................................................................... 226
6.4 Modbus communication .............................................................................. 227
6.4.1 Mapping data points to Modbus Registers........................................................227
6.4.2 Log record access............................................................................................. 228
6.5 Optional gas chromatograph interface ......................................................... 228
6.5.1 Hardware configuration ................................................................................... 228
6.5.2 Software configuration.....................................................................................229
6.5.3 Gas property data............................................................................................. 229
6.5.4 Data polling...................................................................................................... 230
6.5.5 GC data validity................................................................................................ 231
6.5.6 GC alarm handling............................................................................................ 231
6.6 Archive logs ............................................................................................... 232
6.6.1 Daily log...........................................................................................................232
6.6.2 Hourly log ........................................................................................................238
6.6.3 Audit log .......................................................................................................... 241
6.6.4 Alarm log ......................................................................................................... 252
6.6.5 System log ....................................................................................................... 254
6.6.6 Reading log records.......................................................................................... 254
6.7 Viewing transducer waveforms .................................................................... 256
6.8 Upgrading the meter program ..................................................................... 256
6.8.1 Power disruption during firmware upgrade......................................................257
6.9 Self-tests and data reliability ....................................................................... 259
6.9.1 RAM integrity................................................................................................... 259
6.9.2 Program integrity............................................................................................. 259
6.9.3 Stored data integrity ........................................................................................ 259
6.9.4 Hardware watchdog......................................................................................... 259
6.9.5 Program execution integrity.............................................................................260
6.9.6 Log transfer integrity........................................................................................ 260
6.9.7 Data value limit checks..................................................................................... 260
6.9.8 Configuration dependency checks ................................................................... 260