Bronkhorst RS232 interface Manuel d'utilisateur télécharger pdf (Page 15)

BRONKHORST®

Page15RS232interface    9.17.027



3.4.2 Parametertypes



Parametertypes

Type Id Bytes Bits Range

Character 00h 1 00000000 0…255

Integer 20h 2 00100000 0…65535

Float 40h 4 01000000 +‐1.18e‐38...+‐3.39e+38

Long 40h 4 01000000 4bytes0...4294967296

String 60h X 01100000 lengthneedstobespecified



Numberofbytesperparametertype

Value1 Value2 Value3 Value4 Value5 Value6

Byte 

Integer 

Float  

Long  

Stringlength String 



Themessagesmakeuseofbyteswhicharecomposedofdatafromseveralbytes.

Anexampleofsuchacomposedbyteisshownbelow.



3.5 CHAINING

Chaining can be used to send or request more than one parameter per message. When the parameters are all

members of the same process, they can be chained at parameter level. When the parameters are members of

different processes, they can be chained at process level. A combination is also possible.

 For chaining at parameter

levelthefirstbitoftheparameternumbershouldbesetifthereisfollowinganotherparameteratthesameprocess.

Forchainingatprocesslevelthefirstbitoftheprocessnumbershouldbesetifthereisanotherprocessfollowing.

c t t p p p p p

Parameternumber(FBnr.seetables)

Parametertype

Startcommunication

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 41 42

Pas de commentaire

Bronkhorst RS232 interface Manuel d'utilisateur Page 15