Gossen R2600 User Manual

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GOSSEN METRAWATT GMBH
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2.4 Function and value range of the format characters
2.4.1
Equipment address
• 0 ... 250 Range for individual equipment addresses = interface address Addr
• 255
All equipment connected to a bus can simultaneously be addressed under this address. Data and instructions entered with this address 
are accepted by all equipment, but there is no acknowledgement made to the master.
2.4.2
Function field (FF)
The function field contains
• with the short set the proper user information, predefined by bits and different in request and response direction
• with the control and long set the direction and control information for the transmitted data block
2.4.2.1 Function coding of the function field in request direction 
Request check
Code
Set
Remark
Reset equipment
09h
Interrogation: Equipment OK?
29h
Short set
Request cycle data from equipment
89h
The R2600/01 evaluates the given codes only; an error acknowledgement is 
issued for invalid ones
Request event data from equipment
A9h
Send data to R2600/01
69h
Long set
Request data from R2600/01
89h