Addressing Of Communications Function Code Parameter Group Number And Index Number Within The Group - Bosch Rexroth Fe PROFIBUS-DP Bus Adapter Instruction Manual

For frequency converter
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Bosch Rexroth AG
Periodical Data Communication
6.4 Addressing of Communications Function Code Parameter
Group Number and Index Number within the Group
The communication function code address of the frequency converter is in strict
correspondence with the function code. It consists of function code group No.
and index of parameters within the group. Reading and writing function codes
are possible through reading and writing contents of function code address of
PROFIBUS communication. Reading and writing property as well as value taking
range for the function code should follow the Instruction Manual for the fre-
quency converter.
A complete communication function code address of frequency converter con-
sists of 19 bits, where high 11 bit is communication function code group No,
and low 18 bit is index of parameters within the group. Index of parameters
within the group for a certain function code refers to sexadecimal expression
group No. of such function code. For example, if it is function code E03 (pro-
grammable skip frequency range), it is numbered as 3 in Group E. So its index
of parameters within the group is 0×03. As high 3 bit of 11 bit function code
(bit10-8 of ID) must be 000B, in order to describe it in sexadecimal system,
function code group No. stated in this manual only refers to its low 8bit (i.e.,
bit7-10 of ID). For example, if it is function code E03 (programmable skip fre-
quency range), its function code group No. is 0×01. The function code group No.
mentioned above is the same as this number. Addressing the range for
PROFIBUS adapter communication function code group No. and index of param-
eter within the group is shown in
tion code parameters" on page
Function code
group name
Function code
group No.
Index of parame-
ters within the
group
Tab. 6-13: Addressing of communication function code parameters
28/35
tab. 6-13 "Addressing of communication func-
28.
Group b
0×00
0×00 – 0×2B
0×00 – 0×3O
PROFIBUS-DP Bus Adapter
Group E
Group P
0×01
0×02
0×00 – 0×25
DOK-RCON01-PROFIBUS***-IB04-EN-P
Group H
0×03
0×00 – 0×3F

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