Kurz B Series - Modbus Protocol Write Coil Command; Modbus Status Registers

KurzB‐SeriesOperationsGuide 6–3
Flow Meter Configuration
Modbus Protocol Write Coil Command
Bywritinga1tothespecificModbuscoil,youcantriggerazero(#0),mid(#1),span(#2),and
cycleall(#3,function05)driftcheck.OnlyoneModbusdriftcheckstartcommandcanrunata
time.ThistriggerdoesnotrequiretheAutoDriftChecktobeON.
However,iftheAutoDriftCheck
isONandcurrentlyperformingadriftcheck,theModbus‐triggereddriftcheckwillnotstartuntil
theotherdriftcheckcompletes.
Modbus Status Registers
StatusregistersareprovidedviaModbus(function02)toindicatewhetheranyofthegiven
optionsareactive(1)orinactive(0).
Table 6‐1. ModbusWriteCoilCommands ‐Function0x05WriteSingleCoil,
Function0x01ReadCoils
Coil# Description Hex
0Startzerodriftcheck. 000
1Startmid‐spandriftcheck. 001
2
Startspandriftcheck.
002
3Startdriftcheckcycle. 003
4Aborton‐goingdriftcheck. 004
5Reserved. 005
6SaveworkingconfigurationtoEEPROM 006
7Reserved. 007
8Startpurge(requiresPurgeoption). 008
9Resetdevicetotalizer 009
Table 6‐2. ModbusStatusRegisters–Function0x02ReadDiscreteInputsOnly
Coil# Description Hex
0Zerodriftcheckstarted. 000
1Mid‐spancheckstarted. 001
2Spancheckstarted. 002
3Driftcheckcyclestarted. 003
4‐7Reserved. 004‐007
8Purgecyclestarted. 008
9‐15 Reserved. 009
16 RPresistanceabovehighlimit(error). 010
17 RPresistancebelowlowlimit(error). 011