YOKOGAWA GX20

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All Rights Reserved. Copyright © 2012, Yokogawa Electric Corporation
GS 04L51B01-01EN June. 14, 2017-00
SERIALCOMMUNICATIONINTERFACE(/C2,/C3)
• Connection:EIARS-232(/C2)orEIARS-
422/485(/C3)
• Protocol:Dedicatedprotocol,Modbus/RTU,or
DARWINcompatiblecommunication
• Setting/measurementserverfunction:Operation,
settingoroutputofmeasurementdataare
available by dedicated protocol.
• Synchronization:Start-stopsynchronization
• Transmissionmode(RS-422/485):
RS-422:Four-wirehalf-duplexmulti-drop
connection (1:n (n = 1 to 31))
RS485:Two-wirehalf-duplexmulti-drop
connection (1:n (n = 1 to 31))
• Baudrate:1200,2400,4800,9600,19200,
38400, 57600, or 115200 bps
• Datalength7or8bits
• Startbit:1bit
• Stopbit:1bitor2bit
• Parity:ODD,EVEN,orNONE
• HandshakingOff:Off,XON:XON,XON:RS,and
CS: RS
• Communicationdistance;
RS-422/485: 1200 m (57600 bps or less), 600 m
(115200 bps)
RS-232: 15 m
• Modbus/RTUcommunication:Readingorwriting
ofmeasurementdataonotherinstrumentsis
available by Modbus protocol.
 Communicationchannelfunctionoption(/MC)
isneededtoreadmeasurementdatafromother
instruments.
• Operationmodes:Masterorslave
• Executionofacommunicationcommandusinga
barcode:Theenteredtextcanbeexecutedasa
communication command.
CUSTOMDISPLAY(/CG)
 UsingDXA170DAQStudio,screencreation
software,acustomscreencanbeconstructedand
displayed in which display components (such as
trend,digital,andbargraphs)arefreelyplaced.
 ThescreendataistransferredfromDAQStudioto
the internal memory via communication, or loaded
fromanexternalmediumtotheinternalmemory
and displayed.
• Numberofscreens:30(internalmemory)
• Displaycomponents:
• Normalcomponents(digitalvalue,bar
graph, tag No., tag comment, simple digital
value, simple bar graph, alarm mark, unit,
alarm indicator, lower-limit span value,
upper-limit span value, group name,
system icon, memory sample bar, date/time
view, batch name, and user name)
• Trendcomponents(trendgroupdisplay
(with scale board))
• Listcomponents(alarmlistviewand
message list view)
• Operationcomponents(DO(DOoperable),
internal switch (internal switch operable),
numeric value operations (viewing data
ofandwritingdatatocommunication
channels), and button operations (writing
numeric values, operating bits, switching
screens,andexecutingcommunication
commands)
• Textcomponents(labels)
• Figurecomponents(lineview,rectangle
view, and circle view)
• Imagecomponents(PNGimagedata)
• Batchcomponents(Batchnumber,Lot
number,Texteld,Batchcomment,Batch
group number*)
* OnlyonGXwiththeMultibatchfunction(/
BT option)
• Controlcomponent(controller,control
alarmindicator,externalcontroller)
• Conguringscreens:Screencreationsoftware
 CreationusingDXA170DAQStudio(GXdoes
nothaveacreationfunction)
• Saving/loadingscreendata:
 Aspeciedscreenorallthescreensis/are
loadedfromanexternalstoragemediumtothe
internalmemory,oraspeciedscreenorallthe
screens in the internal memory is/are saved on
anexternalstoragemedium.
VGAVIDEOOUTPUT(/D5)(OnlyforGX20)
• Externaldisplay:
 Resolution:800×600dots(VGA)
 Connector:15-pinD-Sub(female)
EtheNet/IPCOMMUNICATION(PLC
communicationprotocol)(/E1)
 CanbejoinedtoanEthernet/IPnetworkasan
adapter (or a server).
• LoadingdatafromtheI/Ochannelorcalculation
channel (/MT)
 I/Ochannel:
GX10: 100, GX20-1: 100, GX20-2: 500
Calculation channel:
GX10: 50, GX20-1: 100, GX20-2: 200
• Loadingandwritingdatafrom/tothe
communication channel (/MC)
Communication channel:
GX10: 50, GX20-1: 300, GX20-2: 500
• Implementationlevel:Level2
• Supportedprotocols:EIP/PCCC,EIP/native
• Numberofthesimultaneousconnection:Max.10
(Explicitmessage)
WTCOMMUNICATION(/E2)
 CollectsdatabyconnectingtoWTequipment
manufacturedbyYokogawaMeters&Instruments
Corp. via Ethernet communication*.
* The /MC option is required.
• Supportedmodels:WT1800E(commandtype
WT1800),WT1800,WT300E(commandmode
WT300).WT500,andWT300
• Numberofconnectableunits:
GX10: 8
GX20: 16
• Communicationcycle:500ms/1s/2s/5s/10s/20
s/30 s
• Typesofdatathatcanbeobtained:Voltage,
current,power,powerfactor,phase,electrical
energy,high-frequencywave,etc.
• Numberofdataallocations
GX20：300
GX10：50