Siemens SENTRON PROFINET Proxy SPP2000, Manual

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Data traffic
6.3 Acyclic data traffic
PROFINET Proxy SPP2000
Equipment Manual, 03/2022, L1V30814715D-01
49
6.3.5 DS48 data set for flexible write access
You can write individual data items, such as counter statuses and commands, to the
SENTRON devices by means of data set DS48.
This data set only applies to the SENTRON PAC devices. The corresponding slot/subslot
address must therefore be used for writing.
The table below shows how to set values for the imported and exported active energy of a
PAC3200T, e.g. following replacement of a device.
Table 6- 9 Structure of data set DS4 – write request
Byte Length (bits) Format Data
(examples) Description
0 16 Unsigned short 0x0321 Register address for value 1 *
2 8 Unsigned char 0x00 Device address 1 **
3 8 Unsigned char 0x04 Register number 1 ***
4 64 Double 123456789.01 Value for register address 1
12 16 Unsigned short 0xC351 Register address for value 2 *
14 8 Unsigned char 0x00 Device address 2 **
15 8 Unsigned char 0x02 Register number 2 ***
16 64 Unsigned long 4 Value for register address 2
24 ...
...
max. 240
* You can find the register address of the measured variable or the status in the manual for the device
you are using.
** Internal device address.
For SPP2000 = 00.
The lower-level PAC devices are addressed via slot/subslot for the entire data set. For this reason,
always enter the value "0".
*** Enter the number of registers here. One register is the equivalent of 2 bytes; two registers are the
equivalent of 4 bytes, etc.
6.3.6 DS51 SENTRON PAC device overview
Via data set DS51, the current measured values and the status of the SENTRON PAC devices
can be read out.
This data set only applies to the SENTRON PAC devices. The corresponding slot/subslot
address must therefore be used for reading.
Table 6- 10 Structure of data set DS51 - read access only
Byte Length (bits) Format Description
0 32 Unsigned long Status information
4 32 Float Voltage L1-N
8 32 Float Voltage L1-N