Siemens SIMATIC ET 200SP Function Manual

OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
214 Function Manual, 11/2019, A5E03735815-AH
9.3.4.5 Data types for companion specifications
Mapping of data types
The table below shows the compatible SIMATIC data type for each OPC UA data type.
Assign the data types as shown below (SIMATIC data type - OPC UA data type). Other
assignments are not permitted. STEP 7 does not check the observance of this rule and does
not prevent an incorrect assignment. You are responsible for the rule-compliant selection
and assignment of the data types.
You can also use the listed data types, for example, as elements of structures/UDTs for input
and output parameters of self-created server methods (UAMethod_InParameters and
UAMethod_OutParameters).
Table 9- 3 Mapping of data types
SIMATIC data type
OPC UA data type
BOOL
Boolean
SINT
SByte
INT
Int16
DINT
Int32
LINT
Int64
USINT
Byte
UINT
UInt16
UDINT
UInt32
ULINT
UInt64
REAL
Float
LREAL
Double
LDT
DateTime
WSTRING
String
DINT Enumeration (Encoding Int32) and all
derived data types
User-defined data type required (UDT, user-defined data
type)
The user-defined data type must be created with the
prefix "Union_", for example "Union_MyDatatype". See
example below the table.
The first element (Selector) in this UDT must have the
data type "UDINT".
UNION and all derived data types

Siemens SIMATIC ET 200SP Specifications

General

System Type	Distributed I/O System
Mounting	DIN Rail
Communication Protocol	PROFINET, PROFIBUS
IP Rating	IP20
Category	I/O Systems
Supply Voltage	24 V DC
Modularity	Yes
Hot Swapping	Yes
Storage Temperature	-40°C to +70°C
Digital Inputs	Yes
Digital Outputs	Yes
Analog Inputs	Yes
Analog Outputs	Yes
Communication Interface	PROFINET, PROFIBUS
Number of Modules	Up to 64
Relative Humidity	5 to 95% (non-condensing)
Operating Temperature	-25°C to +60°C