B&R Industries X20 System, Руководство пользователя

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Coated modules • Bus modules • Brief information
X20 system User's Manual 3.10 2527
5.7 Bus modules
In the X20 system, a bus module takes the place of a rack.
Bus supply contacts
Bus data contacts
I/O supply contacts
X20BM11 X20BM01
Figure 814: The bus module replaces the rack in the X20 system
The bus module is the backbone of the X20 system regarding the bus supply and bus data as well as the I/O supply
for the electronics modules. Each bus module is an active bus station, even without an electronics module. There
are two variations of the bus module:
•
Interconnected I/O supply
•
I/O supply isolated to the left (for power supply modules)
5.7.1 Brief information
Product ID Short description on page
X20cBM01 X20 supply bus module, coated, internal I/O supply interrupted to the left 2528
X20cBM11 X20 bus module, coated, 24 V keyed, internal I/O supply continuous 2530
X20cBM12 X20 bus module, 240 V keyed, coated, internal I/O supply continuous 2532
X20cBM31 X20 bus module, coated, for double-width modules, 24 VDC keyed, internal I/O supply continuous 2534
X20cBM32 X20 bus module, 240 V keyed, coated, for double-width modules, internal I/O supply continuous 2536