YOKOGAWA GX20

7
All Rights Reserved. Copyright © 2012, Yokogawa Electric Corporation
GS 04L51B01-01EN
June. 14, 2017-00
• Timesetting:Usingtouchoperation,
communicationcommand,eventactionfunction,
orSNTPclientfunction
• Timeadjustmentmethod:
 Limitinwhichthetimeisgraduallyadjusted:
Selectfromtheavailablesettingsbetween5s
and 15 s.
 Whethertochangeanout-of-limitoperation
immediately or report it as an error can be
selected.
 Whilememorysampling:Correctsthetimeby1
msforeachsecond.
 Whilememoryisstopped:Immediatelychange
the time.
• DST:Thedate/timeforswitchingbetween
standardtimeandDSTcanbespecied.
• Timezone:SetsthetimedifferencefromGMT.
• Dateformat:Select"YYYY/MM/DD","MM/DD/
YYYY","DD/MM/YYYY"or"DD.MM.YYYY".
 MMexpressioncanbeselectedfromthe
numericcharacterorellipsis.Ex.January:01or
Jan
 Thedelimitercanbeselectedfrom"/",".","-".
EthernetCommunicationFunctions
• Electricalspecications:ConformstoIEEE802.3
• Connection:Ethernet(10BASE-T/100BASE-TX)
• Max.segmentlength:100m
• Max.connectingconguration:CascadeMax.4
level(10BASE-T),Max.2level(100BASE-TX)
• Connector:RJ-45
• Protocols:TCP,UDP,IP,ICMP,ARP,DHCP,
HTTP, FTP, SMTP, SNTP, Modbus, and
dedicated protocols
• E-mailclient:Automaticallysende-mailat
speciedtimes.
E-mail is sent by events as below.
- Alarmoccurring/alarmcanceling(Max.50ch)
- Recoverfrompowerfailure
- Report data generating
- Storagemediumerror,FTPclientfunction
error
- Speciedtimeperiod
 POPbeforeSMTPandSMTPauthentication
(PLAINandCRAM-MD5)isavailable.
• FTPclient:Automaticallytransferdatalestothe
FTP server.
 Applicableles:Displaydata,eventdata,screen
image data, report data, etc.
• FTPServer:Transferles,deleteles,
manipulatedirectories,andoutputlelistsofthe
GX.
 Numberofthesimultaneousconnection:Max.4
• Webserver:Webapplication,GXreal-time
monitoring and setting changes/operations can
beperformedwiththeWebbrowser.
The screen layout can be determined
independentlyofthescreenoftheGXmainunit.
 Numberofthesimultaneousconnection:Max.4
• SNTPclient:InquiresthetimetotheSNTP
server and sets the GX.
• SNTPserver:OutputstheGXtime.
Time resolution: 5 ms
• DHCPclient:Automaticallyobtainthenetwork
addresssettingsfromtheDHCPserver.
• Modbusclient*:Readsdatafromanotherdevice
and writes to the registers.
 Numberofconnectablesever;
  GX10,GX20-1:Max.16
  GX20-2:Max.32
*: Required /MC option
• Modbusserver:Loadsmeasurementandmath
channel data
Loads and writes communication channel data
Some control commands such as memory start
Modbus client* register access limitations
*: Required /MC option
 Numberofthesimultaneousconnection:Max.4
• Setting/Measurementserver:Operate,set,and
outputdataoftheGXusingadedicatedprotocol.
 Numberofthesimultaneousconnection:Max.4
• DARWINcompatiblecommunicationserver:
SupportssomeDARWINcommands
Communication with GX is possible using
DARWINcommunicationcommands.
 • Output-relatedcommands:Output
measurement(IO)channeldata,Output
calculationchanneldata,Outputrelaystatus,
Outputthepositionofthedecimalpointforthe
measurement(IO)channel,Outputtheposition
ofthedecimalpointforthecalculationchannel,
Outputtheinformationonsystemconguration
 • Setup-relatedcommands:Range,Scaleunit,
Alarm, Time, Moving average, zone
 • Operation-relatedcommands:Resetalarm,
Reset timer, Start MATH calculation, Rebuild
system,Initialize,Inputcommunication,Output
communicationDO,Writemessage
BatchFunction
• Function:Datamanagementusingbatchnames.
Entertexteldsandbatchcommentsinthedatale.
• Batchname:Addedtothelenameofthe
display data and event data.
 Structure:Batchnumber(upto32characters)+
lot number (up to 8 digits)
 Use/notuseselectableforlotnumber,on/off
selectableforautoincrementfunction.
• Texteld:Addstexttothedisplaydataandevent
data.
 Thereare24availabletextelds.
 Upto20titlecharactersand30othercharacters
canbeenteredpereld.
• Batchcomment:Addstexttothedisplaydata
and event data.
 3comments(max.50characters)areavailable.
PrinterOutputFunction
• SnapshotDatacanbeprintedoutwithany
LAN-connected printer supporting the HP PCL5c
language and the port 9100.