20
SI-INTERBUS User Guide
Issue Number: 1
6
Getting started
6.1
Node address
Interbus devices do not require a specific node address to be configured, the physical
wiring of the network determines the Communication Reference (CR) that will be
assigned to the device by the Interbus master controller.
6.2
Communication data rate
Interbus networks operate at a fixed baud rate, either 500 kBd or 2 MBd.
The SI-Interbus module is configured during manufacture to operate at one of these
rates, this configuration is determined by the part number specified at the time of
ordering and cannot be changed by the user.
6.3
Parameter reference
Parameters are referenced using the notation Pr
MM.xx
, where ‘Pr’ means parameter,
‘
MM
’ represents menu 15, 16 or 17 (depending upon which slot contains the option
module) and ‘xx’ is the parameter number within the menu.
Table 6-1 Slot / menu numbering
The following conventions are used in this document:
•
Pr
MM.ppp
– Where
MM
signifies the slot specific menu allocated to the option
module setup menu and
ppp
signifies the parameter number within that setup
menu.
•
Pr
mm.000
– Signifies parameter number 0 in any drive or option menu.
The SI-Interbus module displays the module ID code in Pr
MM.001
, this module ID code
is used to identify the module variant.
6.4
Configuring the cyclic data
6.4.1
What is cyclic data
Cyclic data is a method of data transfer that must be setup during network configuration,
but is transmitted automatically once configuration is complete. The high speed data
transfer is achieved by transmitting only data bytes over the Interbus network, and
relying on local mapping information within the SI-Interbus and Interbus master
controller to ensure that the correct data is sent to the correct locations. This method
relies on the master controller program writing and reading data values to and from the
registers allocated to the node during network configuration, and the source and
destination of IN and OUT data being setup correctly in the drive.
Slot
Menu
1
15
2
16
3
17
SI-Interbus Module ID
Pr
MM.001
Default
404 (500 kBd) or 414 (2 MBd)
Type
16-bit
Access
RO