GE Industrial Solutions OKCV3000CN DeviceNet - Manual (Page 27)

DeviceNet
4.2.3.1. Multiple Parameters Get Mult Parm service
With this service it is possible to read the value of 1 or more (maximum 10) drive or DGFC parameters.
Drive parameters keep their own identifier.
DGFC parameters have their own identifier added with
40000d~
(parameter 1 of the DGFC must be accessed as
40001)
Following is an encoding example:
To read the value of parameter
8193d~
and 8194~ of the drive and 7OO~~ and
701dcc
of the DGFC:
From client to server:
Client
->
Server
~
where:
01 is the destination MACID
4b is the code of “Get_Mult_Parm” service request
65 is the class to which the service is addressed
00 is the instance to which the service is addressed
is the 1st instance to which the service is addressed (parameter 8193 of drive)
8194dec
is the 2nd instance to which the service is addressed (parameter 8194 of drive)
40700d~ is the 3rd instance to which the service is addressed (parameter 700 of DGFC)
is the 4th instance to which the service is addressed (parameter 701 of DGFC)
From server to client:
Client
<-
Server
00,cb,0000,00000000,0000,00000001,0000,00000002,0000,00000003
where:
00 is the destination MACID
cb is the code of “Get_Mult_Parm” service response
0000 is the result of the operation on 1st parameter
00000000 is the value of the 1st read parameter. Important: this field is always 4 bytes long. The data type
of the read parametermust be known.
0000 is the result of the operation on 2nd parameter
00000001 is the value of the 2nd read parameter. Important: this field is always 4 bytes long. The data type
of the read parameter must be known.
0000 is the result of the operation on 3rd parameter
00000002 is the value of the 3rd read parameter. Important: this field is always 4 bytes long. The data type
of the read parameter must be known.
0000 is the result of the operation on 4th parameter
00000003 is the value of the 4th read parameter. Important: this field is always 4 bytes long. The data type
of the read parameter must be known.
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