YOKOGAWA GX20

6
All Rights Reserved. Copyright © 2012, Yokogawa Electric Corporation
GS 04L51B01-01EN June. 14, 2017-00
• Datasize;
Analog input data: 6 bytes/ch.
Analog output data: 6 bytes/ch.
DigitalI/Odata:2bytes/ch.
Pulse input data: 6 bytes/ch.
Math channel data: 6 bytes/ch.
Communication channel data: 6 bytes/ch.
• Filesize:Upto18MB
• NumberoflesforGX10,GX20-1:Upto500
(includingdisplaydata),forGX20-2;Upto1000
(including display data)
• Operationintheinternalmemory:FIFO(FirstIn
FirstOut)
• Dataformat:Binaryortext
• Mode;Free:Recordsdataatalltimes.
Trigger: Starts recording data when a
certaineventoccursandrecordsforthe
speciedinterval.
Repetition trigger: Repeat Trigger mode
• Eventdatalesampletime
Measurement channel = 30. Math Channel = 0
InternalMemory 500 MB
Recording interval (s) 1 s
Total sample time Approx.1month
AlarmFunctions
• Numberofalarms:Uptofouralarms(level)for
each measurement channels
• Alarmtype:Highlimit,lowlimit,differencehigh
limit,differencelowlimit,highlimitonrate-of-
changealarm,lowlimitonrate-of-changealarm,
delay high limit, and delay low limit
• Alarmdelaytime:1sto24hours(foreach
channel)
• Rate-of-changecalculationintervalofrate-of-
change alarms: 1 to 32 times the scan interval
(common to all channels)
• Hysteresis:0.0to5.0%ofthespan(foreach
alarm (level))
• Alarmoutput:Outputtotheinternalswitch,relay
 Internalswitch/relayoperation:AND/OR
operation selectable
• Display:Displaysthestatusontherespective
operation screen and an alarm icon on the status
display section when an alarm occurs.
 Displayoperation:Holdornotholdthedisplay
until the alarm acknowledge operation
• Alarmhidefunction(alarmnologgingfunction)
 Usedforrelayandinternalswitchoutputand
eventsofeventactionandnotrecordedinalarm
display or alarm summary (each channel)
• Alarminformation:Displaysalogofalarm
occurrences on the alarm summary
• Reash:Thedurationforwhichthereashrelays
are deactivated can be set to 500 ms, 1 s, or 2 s.
• IndividualalarmACKfunction:
Alarm display and relay output can be cancelled
on individual alarms
EventActionFunctions
• Eventaction:Executeaspeciedoperation
when a given event occurs.
• Numberofsettings:50
Events: Remote control input, etc.
  Numberoftimers:12
  Numberofmatchtimetimers:12
 Action:Specifymemorystart/stop,alarmACK,
etc.
ControlEventActionFunctions
SeeGX90UTPIDControlModuleGeneral
Specications(GS04L53B01-31EN).
SecurityFunctions
• Operationlockfunction:Limitationstotouch
operation,accesstotheexternalstorage
medium, and various operations
• Loginfunction:Onlyregistereduserscan
operate the GX.
 Itcanbesettoeachoftouchoperationand
communication access.
 SystemadministratorsandUsers:50(totally)
 NumberofAuthorityofuser:10level
ManualSampledData
• Item:Instantaneousvalueatanarbitrarytime
• Target:Measurement(input/outputmodule)/
math/communication channels
• Numberofrecordingchannels;
 GX10,GX20-1:Max.50
 GX20-2:Max.100
• Maximumnumberofdatavaluesthattheinternal
memory can store: 400
• Dataformat:Text
ReportData
• Item:Reportateachscheduledtimeofreport
• Target:Measurement(input/outputmodule)/
math/communication channels
• Maximumnumberofreportsthattheinternal
memory can store: 800
• Dataformat:Text
SnapshotData
• Item:Displayedscreenimagedata
• Dataformat:PNG
• Outputdestination:Externalmediumor
communication output
SetupData
• Item:GXsetupdata
• Dataformat:Text
• Output/readdestination(forsaving/loading):
Externalmedium
ClockFunctions
• Clock:Withacalendarfunction
• Accuracy:±5ppm(0to50°C),excludingadelay
(of1second,maximum)causedeachtimethe
power is turned on.
• Timedifferencebetweenunits:±2msmax.(time
differencebetweenaGXandI/OBaseUnit
(ExpandableI/O))