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VIPA System 300S
6
Digital Modules FAST - SPEED-Bus
6.1 Addressing at SPEED-Bus
Overview
Maximal pluggable
modules
Define addresses by hard-
ware configuration
Automatic addressing
6.2 Project engineering
Overview
HB140 | SM-DIO | | en | Rev. 16-43
To provide specific addressing of the installed peripheral modules, certain addresses
must be allocated in the CPU. With no hardware configuration present, the CPU assigns
automatically peripheral I/O addresses during boot procedure depending on the plug-in
location amongst others also for plugged modules at the SPEED-Bus.
In the hardware configurator from Siemens up to 8 modules per row may be parameter-
ized. At deployment of SPEED7 CPUs up to 32 modules at the standard bus and 10 fur-
ther modules at the SPEED-Bus may be controlled. CPs and DP masters that are addi-
tionally virtual configured at the standard bus are taken into the sum of 32 modules at the
standard bus. For the project engineering of more than 8 modules you may use virtual
line interface connections. For this you set in the hardware configurator the module IM
360 from the hardware catalog to slot 3 of your 1. profile rail. Now you may extend your
system with up to 3 profile rails by starting each with an IM 361 from Siemens at slot 3.
You may access the modules with read res. write accesses to the peripheral bytes or the
process image. To define addresses, a hardware configuration via a virtual PROFIBUS
system by including the SPEEDBUS.GSD may be used. For this, click on the properties
of the according module and set the wanted address.
If you do not like to use a hardware configuration, an automatic addressing comes into
force. At the automatic address allocation DIOs are mapped depending on the slot loca-
tion with a distance of 4byte and AIOs, FMs, CPs with a distance of 256byte. Depending
on the slot location the start address from where on the according module is stored in the
address range is calculated with the following formulas:
DIOs: Start address = 4×(slot -101)+128
AIOs, FMs, CPs: Start address = 256×(slot -101)+2048
Every module at the SPEED-Bus including the CPU has to be configured as single
"VIPA_SPEEDbus"-DP slave at a virtual DP master (342-5DA02 V5.0 from Siemens). For
this you have to include the GSD speedbus.gsd. Every "VIPA_SPEEDbus"-DP slave has
exactly one slot for the project engineering where you must place the according SPEED-
Bus module. The assignment of a SPEED-Bus slave to a SPEED-Bus slot number takes
place via the PROFIBUS address starting with 100.
Digital Modules FAST - SPEED-Bus
Project engineering
85
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