Siemens UL 1066 - Page 146

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Changing the communication parameters
The communication parameters of the COM16 module can be changed by writing the required parameters (baud rate, serial configuration
and MODBUS communication address) in data set 160.
Register
Dataset 160 – communication parameters
Address: A000 hex, Registers: 39, Access: Read / Write
Address
High/
Low
dec hex Description
Data
point
Source
WL
Source
VL
1
Source
VL
2
Format
Length
(Bit)
Scaling
40961 0xA001 - Header; value 0x00 00 00 00 - COM16 COM11 COM21 - 32 -
40963 0xA003 LOW Reserved - - - - - 8 -
40963 0xA003 HIGH MODBUS address 5 COM16 COM11 COM21
unsign
ed char
8 0
40964 0xA004 LOW
Basic type of MODBUS data
transfer
6 COM16 COM11 COM21 Hex 2 -
40964 0xA004 HIGH Reserved - - - - - 8 -
40965 0xA005 -
Data in the cyclic profile of
MODBUS
7 COM16 COM11 COM21
Format
(7)
224 -
40979 0xA013 - Reserved - - - - - 48 -
40982 0xA016 -
IP address of the BDA/BDA
PLUS
10 BDA - -
Format
(10)
40 -
40985 0xA019 LOW
MODBUS transmission rate
(baud rate)
427 COM16 COM11 COM21
Format
(427)
8 -
40985 0xA019 HIGH Parity 428 COM16 COM11 COM21
Format
(428)
8 -
40986 0xA01A - Reserved - - - - - 144 -
40995 0xA023 LOW Property byte (parity) 428 COM16 COM11 COM21 PB 8 -
40995 0xA023 HIGH
Property byte (MODBUS
transmission rate (baud
rate))
427 COM16 COM11 COM21 PB 8 -
40996 0xA024 LOW Reserved - - - - PB 8 -
40996 0xA024 HIGH
Property byte (MODBUS
address)
5 COM16 COM11 COM21 PB 8 -
40997 0xA025 LOW
Property byte (basic type of
MODBUS data transfer)
6 COM16 COM11 COM21 PB 8 -
40997 0xA025 HIGH Reserved - - - - PB 8 -
40998 0xA026 LOW
Property byte (data in the
cyclic profile of MODBUS)
7 COM16 COM11 COM21 PB 8 -
40998 0xA026 HIGH Reserved - - - - PB 8 -
40999 0xA027 LOW
Property byte (IP address of
the BDA/BDA PLUS)
- BDA - - PB 8 -