Bus-Technology According To Rs; Or Cg-S-Bus - Eaton CEAG ZB-S Mounting And Operating Instructions

4.4.15 Bus-Technology according to RS 485

or CG-S-Bus

An RS485 bus is used for data communication with
external bus modules (3-PM-IO Module or TLS).
A connection to a BMS can be done with the CG-S bus.
The conductors of the RS485 bus line must be connected
to the connection points RS485 A, RS485 B, +24V OUT
and -24V OUT of the ZB-S connection terminals.
A parallel switching of data cables is not allowed and
O O
does not lead to an extension of the acceptable cable
length.
For power supply of the modules conductors within one
O O
screening can be switched in parallel (for calculation
compare the catalogue of the system ZB-S).
ATTENTION!
Bus Topology: linear, double terminated (no spur lines
allowed). The absolutely essential terminating resistors are
included in the control cabinet.
Cable type (minimum requirement): IY(ST)Y 4 x 2 x 0.8 mm
O O
(Twistet Pair, screened) – the screen of the cables must be
connected to the SE-clamps of each module and it is allowed
to be earthed in the control cabinet ZB-S.
The conductor cross-section needed for the 24V bus voltage
O O
will depend on the line length and the number of bus modules
(U = 19 V DC, refer to the operationg instructions for the
min
3-PM-IO Module and TLS-Bus-Module)
Only one pair of conductors is allowed to be used as data line
O O
within the screen - it is not acceptable to bundle several data
cables within one screened cable!
The RS485 bus is not designed as a SELV system. The bus
O O
components must be handled as if mains supply (240 V) is
applied.
Mounting and Operating Instructions CEAG Central Battery System ZB-S 40071860179 (L) November 2018 www.ceag.de
NOTE
CG-S-Bus
RS485-Bus
CEAG 3-PM-IO 1
Technical data
57