Bronkhorst RS232 interface Manual do Utilizador descarregar pdf (Página 20)

BRONKHORST®

Page20RS232interface    9.17.027

CommunicationcanbeclosedandinterfacecanbedisabledfromFLOW‐BUStoken‐ringtrafficbysendingthe

commandbelowviatheRS232totheinterface.



StopcommunicationRS232interface

Send Comment

:050101001101\r\n closecommunicationinstruction forinterfacemoduletherewillbenoanswer(because

communicationstops)secondbyteisactualnodeaddressforinterface(here:01)



3.10 EXAMPLES



3.10.1 Sendingsetpoint

Sendsetpoint=50%tonode3process1.Setpointvaluesshouldbegiveninarangefrom0to32000soforthis

example16000shouldbesend.



Sendsetpoint=50%tonode3process1parameter1

Nr Byte Layout Description Descriptionperblock

0 :Startcharacter

Start

1 06Length6

2 03Node3

3 01Commandwritewithstatusresponse

4 01

cppppppp

00000001

c 00 Processnotchained

Process1

p 01 Process1

5 21

cttppppp

00100001

c 00 Parameternotchained

Parameternumber1

Setpoint

t 20 Parametertype‘integer’

p 01 Parameternumber(FBnr.)1

6 3E



Setpoint16000=3E80h

7 80

8 \rCarriageReturn

End

9 \nLineFeed



TotalString :06030101213E80\r\n



Answerfromnode3

Nr Byte Description Descriptionperblock

0 : Startcharacter

Start

1 04 Fixedmessagelength4.

2 03 Nodeaddress03

3 00 Commandstatus

4 00 Statusok.

Statusanswer

5 05 Statusok,valuepointstoendofsendmessage.

6 \r CarriageReturn

End

7 \n LineFeed



TotalString :0403000005\r\n



Positionofnr5isasfollows.



String : 06 03 01 01 21 3E 80 \r\n

Position  1 2 3 4 5 6



1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 41 42

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