ABB 07CR41 Operating Manual page 70

3
When an analog extension unit is present amongst the extensions, the unit is assigned the
same address value as that of the extensible remote unit to which it is connected.
Address values = ( 0 ≤ X ≤ 61 )
If an analog XM 06 B5 type extension unit is used, it is possible to connect a maximum of two
units to the extensible remote unit, because the number of inputs and outputs of this unit is
less than eight.
50
CS 31
series
bus
master
interface
62
Remote
unit
Addresses X
•
Addressing slave basic units
Information exchanges between a master basic unit and a slave basic unit is not restricted to
the exchange of physical input/output variables. It is possible to exchange a data table whose
size may be defined in bits or words, as follows:
- bit exchange in 8 bit packets (1 byte) = from 2 bytes to 15 bytes.
Address = ( 0 ≤ Y ≤ 61 )
- word exchange from 1 to 8 words. Address = ( 0 ≤ Y ≤ 61 )
(see chapter 6.1.3 Programming).
The addressing of the slave basic unit is done via the constant KW 00.00 with the
programming software 907 PC 331.
The addressing of the basic unit extensions is independent of the CS31 addressing. It is
defined and managed by the slave basic unit.
50
series
master
62
CS 31
bus
interface
Remote
unit
X
50
series
slave
Y
Installation
EW / A EW / E
AW
AW
63 63 64 63
E A EW/ E/A
AW
X+1 X+1 X.00 X+2
to
X.03
EW / A EW / E
AW AW
63 63 64 63
E/A
E E E
X+1 X+2 X+3 X+4
E E A EW/
AW
63 64 63 63
4 – 22
A E
64 64 Addresses
A EW/
AW
X+3 X.04
to
X.07
A E
64 64 Addresses
A A
X+4 X+5 Addresses
E/A A
65 66 Addresses managed
by slave central unit
Advant Controller AC 31 / Issued: 08.99