2 Automation Solution
2.4
Overview and description of the user interface
Evaluating An Access Point Clients List
V1.0, Entry ID: 48946495
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2.4
Overview and description of the user interface
The sample project included contains a STEP 7 program and two WinCC flexible
projects integrated in STEP 7.
As operator panel a “Mobile Panel 277F IWLAN V2” and a
“Mobile Panel 277F IWLAN V2 (RFID)” is used.
2.4.1
STEP 7 configuration
For the application a CPU 319F-3PN/DP was used (additional info can be found
under the following
).
A list of blocks follows that are required for the evaluation of the “clients list” from
the access point.
All other blocks correspond to the standard configuration of the mobile panel.
Note
The name of the blocks can be adjusted as desired.
(This does not apply to the names of the STEP 7 function blocks)
Table
2
-
2
No.
Block
Remarks
1. OB1
The blocks FC10; FC15 and FC16 are called through
OB1.
2. FB3
GetRequest
S7-SNMP communication block to read
SNMP variables (MIB variables).
For each access point a FB3 is required.
3. FC5
AG_SEND
STEP 7 function block.
Delivers data to the CP to transfer it through a
configured connection to the
SEND / RECEIVE interface.
4. FC6
AG_RECV
STEP 7 function block.
Transfers jobs to the CP to accept the
received data at the SEND / RECEIVE interface.
5. FC10
HMI_Program
The evaluated data is transferred to the respective
mobile panel through the FC10.
6. FC15
EvaluationAccessPoint_01
The evaluation of the “clients list” for the first access
point is through the FC15.
The “FB3” is called through the FC15 to read out the
“MIB variables”.
Furthermore there is the call of the FC220. Through
the FC220 there is a comparison between the read in
MAC addresses and the
MAC addresses of the mobile panels used.
