Nord Drivesystems NORDAC LINK SK 155E-FDS - Bus Structure and Topology

NORDAC LINK (SK 155E-FDS / SK 175E-FDS) – Users Manual for Motor Starters as Field Distributors
60 BU 0155 en-3520
Technical AS-Interface data
Designation
Option slot M8: Device with connector option …
… “-ASI” … “-ASS” … “-AUX” … “-AXS”
AS-i supply
(yellow cable)
24 … 31.6 V DC, ≤
450 mA
1)
24 … 31.6 V DC, ≤
450 mA
1)
24 … 31.6 V DC, ≤ 25 mA
2)
AUX supply
(black cable)
Connection not
possible
Connection not
possible
24 V DC ± 25%, ≤ 800 mA
Slave profile
S-7.A
S-7.0
S-7.A
S-7.0
I/O code
7
7
7
7
ID code
A
0
A
0
Ext. ID code
1 / 2
7 F 7 F
Address
1A … 31A and
1B … 31B
Delivery state: 0A
1 … 31
Delivery state: 0
1A … 31A and
1B … 31B
Delivery state: 0A
1 … 31
Delivery state: 0
Cycle time
Slave

Master
≤ 10 ms
Master  Slave
≤ 21 ms
≤ 5 ms
Slave

Master
≤ 10 ms
Master  Slave
≤ 21 ms
≤ 5 ms
Number of
application
data (BUS
I/O)
4I / 4O 4I / 4O 4I / 4O 4I / 4O
Extended
required
master
M4 M0, M1, M2, M3, M4 M4 M0, M1, M2, M3, M4
1)
For supply exclusively via the yellow AS-i cable
2)
For supply of the device and any connected sensors/actuators via the device’s integrated power supply unit (“-HVS” option)
and/or via the black cable.
4.3.3 Bus structure and topology
The AS-Interface network structure is optional (line, star, ring and tree structure) and is managed by
an AS-Interface master as an interface between PLC and slaves. An existing network can be
extended with further slaves up to a limit of 31 standard slaves or 62 slaves in the extended
addressing mode. The addressing of slaves is done by the master or a respective addressing unit.
An AS-i master communicates independently and exchanges data with the connected AS-i slaves. No
standard power supply units must be used in the AS-Interface network. For each AS-Interface line,
only one special AS-Interface power supply unit may be used for voltage supply. This AS-Interface
voltage supply is connected directly to the yellow standard cable (AS-i(+) and AS-i(-) cable) and
should be positioned as close as possible to the AS-i master to keep the voltage drop low.
To avoid interferences, the PE connection of the AS-Interface power supply unit (if available)
must be earthed.
The brown AS-i(+) and the blue AS-i(-) wire of the yellow AS-Interface cable must not be earthed.