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All Rights Reserved. Copyright © 2012, Yokogawa Electric Corporation
GS 04L51B01-01EN
Nov. 10, 2015-00
ManualSampledData
• Item:Instantaneousvalueatanarbitrarytime
• Target:Measurement(input/outputmodule)/
math/communication channels
• Numberofrecordingchannels;
GX10,GX20-1:Max.50
GX20-2:Max.100
• Maximumnumberofdatavaluesthattheinternal
memory can store: 400
• Dataformat:Text
ReportData
• Item:Reportateachscheduledtimeofreport
• Target:Measurement(input/outputmodule)/
math/communication channels
• Maximumnumberofreportsthattheinternal
memory can store: 800
• Dataformat:Text
SnapshotData
• Item:Displayedscreenimagedata
• Dataformat:PNG
• Outputdestination:Externalmediumor
communication output
SetupData
• Item:GXsetupdata
• Dataformat:Text
• Output/readdestination(forsaving/loading):
Externalmedium
ClockFunctions
• Clock:Withacalendarfunction
• Accuracy:±5ppm(0to50°C),excludingadelay
(of1second,maximum)causedeachtimethe
power is turned on.
• Timedifferencebetweenunits:±2msmax.(time
differencebetweenaGXandI/OBaseUnit
(ExpandableI/O))
• Timesetting:Usingtouchoperation,
communicationcommand,eventactionfunction,
orSNTPclientfunction
• Timeadjustmentmethod:
Limitinwhichthetimeisgraduallyadjusted:
Selectfromtheavailablesettingsbetween5s
and 15 s.
Whethertochangeanout-of-limitoperation
immediately or report it as an error can be
selected.
Whilememorysampling:Correctsthetimeby1
msforeachsecond.
Whilememoryisstopped:Immediatelychange
the time.
• DST:Thedate/timeforswitchingbetween
standardtimeandDSTcanbespecied.
• Timezone:SetsthetimedifferencefromGMT.
• Dateformat:Select"YYYY/MM/DD","MM/DD/
YYYY","DD/MM/YYYY"or"DD.MM.YYYY".
MMexpressioncanbeselectedfromthe
numericcharacterorellipsis.Ex.January:01or
Jan
Thedelimitercanbeselectedfrom"/",".","-".
EthernetCommunicationFunctions
• Electricalspecications:ConformstoIEEE802.3
• Connection:Ethernet(10BASE-T/100BASE-TX)
• Max.segmentlength:100m
• Max.connectingconguration:CascadeMax.4
level(10BASE-T),Max.2level(100BASE-TX)
• Connector:RJ-45
• Protocols:TCP,UDP,IP,ICMP,ARP,DHCP,
HTTP, FTP, SMTP, SNTP, Modbus, and
dedicated protocols
• E-mailclient:Automaticallysende-mailat
speciedtimes.
E-mail is sent by events as below.
- Alarmoccurring/alarmcanceling(Max.50ch)
- Recoverfrompowerfailure
- Report data generating
- Storagemediumerror,FTPclientfunction
error
- Speciedtimeperiod
POPbeforeSMTPandSMTPauthentication
(PLAINandCRAM-MD5)isavailable.
• FTPclient:Automaticallytransferdatalestothe
FTP server.
Applicableles:Displaydata,eventdata,screen
image data, report data, etc.
• FTPServer:Transferles,deleteles,
manipulatedirectories,andoutputlelistsofthe
GX.
Numberofthesimultaneousconnection:Max.4
• Webserver:GXreal-timemonitoringandsetting
changes/operationscanbeperformedwiththe
Webbrowser.
The screen layout can be determined
independentlyofthescreenoftheGXmainunit.
Numberofthesimultaneousconnection:Max.4
• SNTPclient:InquiresthetimetotheSNTP
server and sets the GX.
• SNTPserver:OutputstheGXtime.
Time resolution: 5 ms
• DHCPclient:Automaticallyobtainthenetwork
addresssettingsfromtheDHCPserver.
• Modbusclient:Readsdatafromanotherdevice
and writes to the registers.
Numberofconnectablesever;
GX10,GX20-1:Max.16
GX20-2:Max.32
• Modbusserver:Loadsmeasurementandmath
channel data
Loads and writes communication channel data
Some control commands such as memory start
Modbusclient*registeraccesslimitations
*:Required/MCoption
Numberofthesimultaneousconnection:Max.4
• Setting/Measurementserver:Operate,set,and
outputdataoftheGXusingadedicatedprotocol.
Numberofthesimultaneousconnection:Max.4
• DARWINcompatiblecommunicationserver:
SupportssomeDARWINcommands
Communication with GX is possible using
DARWINcommunicationcommands.
• Output-relatedcommands:Output
measurement(IO)channeldata,Output
calculationchanneldata,Outputrelaystatus,
Outputthepositionofthedecimalpointforthe
measurement(IO)channel,Outputtheposition
ofthedecimalpointforthecalculationchannel,
Outputtheinformationonsystemconguration