phytron MR 8+ A 32-48 MINI, Руководство пользователя, Страница: 17 / 32

phytron
3 Power and ServiceBus Module (PSB Module)
Every minirack has a PSB module with 2 interfaces. The minirack can be connected to the
PC/Controller or to another minirack.
There are two PSB modules which differ as follows:
1. The PSB module type USB (Fig. 4) with an integrated USB-RS 485 converter can
directly be connected to the USB port of the PC.
The rack with PSB module
USB always gets the internal address 0.
Fig. 4: PSB module type USB with built-in USB-RS 485 converter
2. The PSB module type RS 485 (PSB module without USB-RS 485 converter) needs an
external USB-RS 485 converter for ServiceBus connection to the PC (Fig. 5).
The MR 8 racks are addressed by DIP switches (address 0 to 3) (also see chap. 1.3).
Fig. 5: PSB module type RS 485 without USB-RS 485 converter
15 MA 1233-A006 GB