Banner A-GAGE MINI-ARRAY Series Manuel d'utilisateur télécharger pdf (Page 39)

P/N 43298 rev. E 39

Banner Engineering Corp. •Minneapolis,MNU.S.A.

www.bannerengineering.com•Tel:763.544.3164

MINI-ARRAY

InstructionManual

Appendix

Host Mode Command

TheMINI-ARRAYcontrollercancommunicatewithacomputerorPLCviaeitheran

RS-232connection(allmodels)orRS-485connection(discrete-outputmodels).See

hookupinformationinSection3.4.Thehostcanrespondtooutputfromthecontroller

whenthecontrollerisprogrammedforeithertheContinuousorGatecontrolmode

(seeSection5.5.6).

Alternately,thehostcancontrolsensorscanning.WhentheHostcontrolmodeis

selected,thehostcomputerorcontrollerinitiatesscansusingacommandstring.The

commandstringisathree-bytemessage,consistingof:

 Controlbytewithdecimalvalue248

 ControllerID(oneof16ASCIIlettersAthroughO,asspecifiedinthePSF)

 Scaninitiationbyte(ASCIIletterS)

Thecommandstringisfurtherdefined,asfollows:

 unsignedcharmsg[3];/*declarethreebyteunsignedcharacterarrayusingC

language*/

 msg[0]=248;/*controlbyte*/

 msg[1]=65;/*assumethecontrollerIDistheletterA*/

 msg[2]=83;/*scaninitiationbytewhichistheASCIIletterS*/

Thehosttransmitsthisthree-bytemessageatthedefinedbaudrate.Theformatisone

startbit,onestopbit,evenparity,andeightdatabits.Whenthismessageisreceived

bytheMINI-ARRAYcontroller,thecontrollerinitiatesascan,andthenupdatesits

outputsasrequired.TheMINI-ARRAYcontrollerthenwaitsforthenextcommand

string.

Serial Data Format

Theprogrammedmeasurementmodeormodesdeterminethetypeofinformationthat

istransmitted.Forexample,ifMeas1issetforFBBandMeas2issetforLBB,thenthe

datatransmittedtothehostcontainsthevaluesofthefirstandlastbeamblocked.

TheALLmeasurementmodeprovidesthestatusofallbeamstothehost.TheVHS

modedoesnotprovideserialoutputdata.

Inadditiontomeasurementmodeinformation,thedatatransmissionalsocontainsa

startstringandaterminationbyte.Thestartstringconsistsoftwounsignedcharacter

bytes:

 Hexvalue1C

 ThecontrollerIDvalue

TheterminationbyteistheASCIIcharacterforalinefeed(hexvalue0A).Thesethree

bytesarecollectivelycalledtheHeader.

Appendix. Host Mode Command and Serial Data Format

1 2 ... 34 35 36 37 38 39 40 41 42 43 44

Commentaires sur ces manuels

Pas de commentaire

Banner A-GAGE MINI-ARRAY Series Manuel d'utilisateur Page 39

Commentaires sur ces manuels

Produits connexes et manuels pour Capteurs Banner A-GAGE MINI-ARRAY Series