HBM QuantumX - Page 30

Introduction
30 A03031_24_E00_01 HBM: public QuantumX
Comparison of synchronization mechanisms
Feature IEEE1394b
FireWire
Ethernet
(PTPv2)
Ethernet
(NTP)
EtherCAT® IRIG-B
Synchroniza
tion with
other device
types
QuantumX
only
QuantumX
B module
Cameras
and others
QuantumX,
MGCplus
others
All
EtherCAT®
nodes
All IRIG-B
nodes
Max. dis
tance
between
QuantumX
modules
5 m (40 m
with
IEEE1394b
FireWire
extender,
500 m via
optical fiber)
100 m elec
trical and up
to a few
100 m opti
cal
100 m elec
trical, several
km optical,
variable with
WLAN
100 m -
Number of
modules to
be synchron
ized
24 Unlimited Unlimited CX27C
required,
unlimited
Unlimited
MX440B,
MX840B
required,
Synchroniza
tion accuracy
< 1 µs < 1 µs
(with recom
mended
PTPv2
switches up
to 100 ns)
100 µs to 10
ms
< 1 µs < 1 µs
Synchroniza
tion settling
time
Immediate Up to 20 s
(on initial
startup)
Up to 30 min
during first
start, up to
2 min during
restart
Immediate Immediate
Synchroniza
tion
master
Auto
1 QuantumX
module
Auto oder
Grandmas
ter‐
Clock
External Syn
cMaster ,
e.g. PC
External
SyncMaster
External
IRIG-B
master
Voltage sup
ply
< 1.5 A,
looped
through
- - - -