Core statement With WinCC flexible 2008 Service Pack 2 all panels with an Ethernet interface that can be configured with WinCC flexible 2008 and the WinCC flexible 2008 Runtime can access S7-1200 data blocks using absolute addresses (no symbolic DBs) via the "SIMATIC S7 300/400" driver.
Compatibility
The following items are supported:
- Data type: Bool, Byte, Char, DInt, DWord, Int, Real, Time, Word, String, Array
- New S7-1200 data type:
- SInt can be connected in WinCC flexible 2008 SP2 as Char
(range: -128 to 127)
- USInt can be connected in WinCC flexible 2008 SP2 as Byte
(range: 0 to 255)
- UInt can be connected in WinCC flexible 2008 SP2 as Word
(range: 0 to 65535)
- UDInt can be connected in WinCC flexible 2008 SP2 as DWord
(range: 0 to 4294967295)
- Structures (Struct, IEC_Counter, IEC_Timer, DTL, IEC_SCounter, IEC_DCounter, IEC_UCounter, IEC_USCounter, IEC_UDCounter, ErrorStruct) are not supported, but elements of structures can be connected in WinCC flexible 2008 SP2 separately.
- Read and write access to peripheral inputs and outputs
- Tag multiplexing
- Recipes
- Discrete alarms
- Analog alarms
- Screen number
- Project ID
- Data records
- Coordination
- Controller jobs
Procedure The procedure for the communication with WinCC flexible 2008 Runtime is described below.
| No. |
Remarks |
| 1 |
Create a data block using an absolute address in STEP 7 Basic V10.5 via "Add new block" and "Global DB".

Fig. 01
Remove the check mark for the option "Symbolic access only". |
| 2 |
In the data block, you create the tags that WinCC flexible 2008 will access.

Fig. 02
|
| 3 |
In WinCC flexible 2008, you create a connection via "Communication > Connections".

Fig. 03
- Select "SIMATIC S7 300/400" as the communication driver.
- Select "Ethernet" as the interface.
- Enter the IP address for the WinCC flexible Runtime and the S7-1200 station.
- Select "S7ONLINE" as the operator panel's access point.
- Specify "1" as the PLC's expansion slot.
|
| 4 |
Open the PG/PC interface under "Start > Control panel > Set PG/PC interface".
In the PG/PC interface, you must set the access point "S7ONLINE" to "TCP/IP -> [Used network card]".

Fig. 04
|
| 5 |
Create the S7-1200 tags using absolute addresses under "Communication > Tags" (compare with Fig. 02).

Fig. 05
|
Table 01
Notice Service Pack 2 for WinCC flexible 2008 is available under entry ID: 38612895.
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