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3 Settings, MPI/BTSS
3.5
Deviation from standard configuration
3.5
Deviation from standard configuration
Required
documentation
Example
Procedure
SIMATIC STEP7,
version 2.1
3-30
The following additional publications are required:
Reference material:
/BH/ Device Manual, Operating Components
/FB/ P3, PLC basic program
/S7HT/ Manual, Application of Tools
A configuration may be non-standard owing to one of the following:
S
Change of address assignment
for the input, output or status bytes, or
for the flag area or data block
S
Additional connection of a handheld unit (HHU)
S
Connection of a 2nd MSTT or handheld terminal (HT 6)
In such cases, you must adjust the communications parameters and possibly
the switch settings (addresses) of the bus nodes.
A new configuration is entered via the Define global data soft key. The following
description of how to proceed is based on the assumption that you already
know how to use this menu.
1. Set up new project and CPU programs using the STEP7 tool. A separate
CPU program should be set up for each component of the plant (PLC,
MSTT, HHU, 2.MSTT, HT 6, ...).
2. Connect the MPI nodes, i.e. network CPU programs with MPI address.
3. Activate the "Global Data" menu command in the following soft key
sequence File Manager/MPI Network/Extras/Global Data and enter the
desired configuration.
4. Compile this configuration. A new SDB is generated for each CPU program.
5. Set the cyclical transmission grid. Once the configuration has been compiled
successfully for the first time, the "Conversion factor" and "Status" can be
activated and then input.
6. Now compile your configuration again.
7. Transfer the SDB (from the CPU program of the PLC) to the PLC.
8. You must parameterize call FB1, DB7 in OB 100 in the basic PLC program
for all operator control components (MPI nodes).
9. You must configure the status pointer (double word) for every component in
FB1 for monitoring purposes.
Note
For a description of the "Global data" menu and the application, see
Reference material:
SINUMERIK 840D/810D Start-Up Guide (IADC) – 03/2006 Edition
/S7HT/ SIMATIC Step7 Manual,
Starting up MPI bus nodes
© Siemens AG 2006 All Rights Reserved
03/2006
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