Siemens SPS starter kit 6ED1057-3BA00-0AA8 12 Vdc, 24 Vdc 6ED1057-3BA00-0AA8 Datenbogen
Produktcode
6ED1057-3BA00-0AA8
User interface
2.8 Menu bar
LOGO!Soft Comfort Online Help
Operating Instructions, 06/2014
Operating Instructions, 06/2014
105
2.8.5.35
Tools -> Parameter VM Mapping (0BA7 and 0BA8 only)
VM overview
LOGO! Base Modle uses VM (Variable Memory) as a local S7 communication interface for
data exchange by means of connections/data-transfer configuration.
You can use LOGO!Soft Comfort with the Ethernet connections menu command following
You can use LOGO!Soft Comfort with the Ethernet connections menu command following
instructions in the Tools -> Ethernet Connections (0BA7 and 0BA8 only) (Page 100) section
to construct the network topology.
LOGO!Soft Comofort performs data exchange process as follows:
● The server stores the required data into the VM area specified by the S7 connection and
LOGO!Soft Comofort performs data exchange process as follows:
● The server stores the required data into the VM area specified by the S7 connection and
data transfer. This is defined as a "share" action in the following section.
● The client unit reads the server's VM area and then updates the corresponding local VM
area in its network process step.
● After the local update, the circuit program in the client can use the information in the local
VM originated from the Server.
Data type and VM address
The following illustrates VM addressing and data type usage:
The following illustrates VM addressing and data type usage:
Creating a parameter VM mapping
When you change a parameter value in the local VM, the value in LOGO!Soft Comfort
changes accordingly. In this way, LOGO!Soft Comfort synchronizes information with the
local VM in real time.
LOGO!Soft Comfort synchronizes the parameter values of a block to the specified VM in
LOGO!Soft Comfort synchronizes the parameter values of a block to the specified VM in
each LOGO! cycle. After the synchronization, LOGO! Base Module can use the VM to
communicate with other SIMATIC devices. You can map up to 64 parameters in VM for each
LOGO! Base Module in the Variable Memory Configuration dialog. The following screen is
an example of the configuration dialog of parameter VM mapping: