2.3 Special Considerations For Use On The Profibus Dp And Profinet Io - Siemens Simatic ET 200SP Manual

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2.3 Special considerations for use on the PROFIBUS DP and PROFINET IO

2.3 Special considerations for use on the PROFIBUS DP and
PROFINET IO
You can read data records from the module or write them to the module with both
PROFIBUS DP and PROFINET IO.
Operation of the module on PROFIBUS DP
Please note that with PROFIBUS DP you can write data records up to a maximum length of
240 bytes to the module or read them from the module.
PROFIBUS DPV 1
If the DP Master supports the DPV1, you can reconfigure in your user program with the
parameter data records DS 128, DS 129, DS 130, DS 131 or DS 135. Note that the
maximum data record length is 240 bytes for DS 135.
The following applies for the measured value data records:
● DS 142: When you read the data record, the module returns the measured value data
record DS 142 in version 2.
● DS 147, DS 148, DS 149: When you read the data record, the module returns the
measured value data record in version 0.
● DS 154, DS 155, DS 161, DS 163, DS 164: When you read the data record, the module
returns the first 240 bytes of the structure of the measured value data record.
● DS 151: You define the user-defined measured value data record DS 151 in the
parameter data record DS 135. If the structure in the measured value data record DS 151
is greater than 240 bytes, the module returns the first 240 bytes of the structure.
Information on the data record length of data records DS 135 and DS151 can be found in
the appendix Structure of the parameter data record 135 for data record mapping
(Page 160).
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Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
Manual, 07/2018, A5E42674880-AA