Reading Accounting Data 20H - ABB PointMaster 200 Series Operating Manual

Parameter address (Offset)
0000H
0002H
0004H
0006H
0008H
000AH

Reading accounting data 20H

The accounting data are interrogated by means of an SD3 inter-
rogation to basic address 20H. The data of a measuring channel
are transmitted in blocks with a message. It is not possible to
access individual parameters of the accounting function. The
offset which is sent in the interrogation determines the number
of the measuring channel whose data are to be read. The byte
number is to be entered into the interrogation in accordance with
the data field size.
SD3/DA/SA/FC/aa/bb/bb/cc/xx/xx/xx/xx/FCS/ED
|<-- L
Parameter address (Offset)
0000H
0001H
0002H
0003H
0004H
0005H
The recorder sends an SD2 type reply telegram. In this telegram, the parameters have the following meanings:
Parameter address (Offset)
0000H
0001H
0005H
0009H
000DH
0011H
Data type Function
Word Measured values channel 1
Word Measured values channel 2
Word Measured values channel 3
Word Measured values channel 4
Word Measured values channel 5
Word Measured values channel 6
-->|
Data type Function
Block Accounting data to measuring
channel 1
Block Accounting data to measuring
channel 2
Block Accounting data to measuring
channel 3
Block Accounting data to measuring
channel 4
Block Accounting data to measuring
channel 5
Block Accounting data to measuring
channel 6
Data type Function
Byte Accounting interval
Float Minimum
Float Maximum
Float Mean value
Float Accounting sum
Byte Starting day of the interval
Value range and coding
0000H...3E8H = 0...1000
0000H...3E8H = 0...1000
0000H...3E8H = 0...1000
0000H...3E8H = 0...1000
0000H...3E8H = 0...1000
0000H...3E8H = 0...1000
Where:
SD3 = A2H
Start byte
DA Destination address (bus subscriber address)
SA Source address
FC = 15H
Function code
aa = 20H
Basic address of the parameter field
bb bb 2 bytes parameter address (offset)
cc = 27H
Number of data bytes
xx xx
xx xx 4 random bytes
FCS Test byte (Frame Check Sequence)
Sum of the hex value of the L frame without transfor-
mation for FFH
ED = 16H
End byte (End Delimiter), code: 16H
L Number of bytes in FCS
Value range and coding
Value range and coding
Parameters 23