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2 Automation Solution
2.4 Overview and description of the user interface
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 link).
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.
The name of the blocks can be adjusted as desired.
Note
(This does not apply to the names of the STEP 7 function blocks)
Table 2-2
No.
1.
OB1
2.
FB3
GetRequest
3.
FC5
AG_SEND
4.
FC6
AG_RECV
5.
FC10
HMI_Program
6.
FC15
EvaluationAccessPoint_01
Evaluating An Access Point Clients List
V1.0, Entry ID: 48946495
Block
The blocks FC10; FC15 and FC16 are called through
OB1.
S7-SNMP communication block to read
SNMP variables (MIB variables).
For each access point a FB3 is required.
STEP 7 function block.
Delivers data to the CP to transfer it through a
configured connection to the
SEND / RECEIVE interface.
STEP 7 function block.
Transfers jobs to the CP to accept the
received data at the SEND / RECEIVE interface.
The evaluated data is transferred to the respective
mobile panel through the FC10.
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.
Remarks
13
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