Special functions for coupled IT systems
Special functions for coupled IT systems
isoHR685W-x-I-B_D00261_05_M_XXEN/12.2021
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11.5 ISOsync for capacitive couppled IT systems
ISOMETER®s can interfere with each other when used in capacitively coupled IT-systems.
If more than one ISOMETER® is to be used in capacitively coupled IT systems, it is possible
to synchronize via Ethernet (ISOsync function) to prevent any such interference.
This synchronization works via time synchronization. And this can be performed by
BCOM or by NTP.
Capacitively coupled IT systems are used to monitor long parallel IT systems.
11.5.1 System overview ISOsync
PE
L+
L-
U X
n
U 2
n
L+
L-
L+
L-
U 1
n
X2
11 12 14
21 22 24
R
X2
X1
KE E
L2
L3/-
L1/+
A2/-
A1/+
A1/+ A2/-
L1/+
L2
L3/-
KE
E
U
S
X2
11 12 14
21 22 24
R
X2
X1
KE E
L2
L3/-
L1/+
A2/-
A1/+
A1/+ A2/-
L1/+
L2
L3/-
KE
E
U
S
X2
11 12 14
21 22 24
R
X2
X1
KE E
L2
L3/-
L1/+
A2/-
A1/+
A1/+ A2/-
L1/+
L2
L3/-
KE
E
U
S
Switch
1.
2.
X.
1. 2.
X.
11.5.2 Configuration and function
The ISOnet function can be activated or deactivated in the menu:
Alarm settings ->
ISOsync
. The function must be activated and configured in ALL ISOMETER®s contained
in the system.
Also the Ethernet (DHCP on or IP address, sub net mask and default gateway) and BCOM
parameters have to be set so that the devices in an ISOsync interconnection can commu-
nicate with each other.
In addition, the same time base must be set in all devices. This can be done via two differ-
ent functions:
• BCOM: By setting BCOM parameters
• NTP: By activating and specifying an NTP server as well as specifying a time format.
To ensure proper ISOsync functionality, the following settings must be made in se-
quence:
1. Establish a network connection so all ISOsync devices can communicate with each
other.
2.
Time synchronisation via BCOM:
Configure parameters in the Menu
Device settings->Interface->BCOM-
>System name
Important: All ISOsync devices must have the same system name and subnet
address. Each device needs a specific BCOM address within a range from 1 to 90.
Time synchronisation via NTP:
–
Device settings -> Clock -> NTP
activated
–
Device settings -> Clock -> NTP server
Server address
–
Device settings -> Clock -> UTC
time format
3.
Menu
Alarm settings->ISOsync
Activate ISOsync function
When properly installed, all ISOsync devices have the same time and date settings and
work synchronously from this point on.
If, in the meanrime a device is restarted, it is automatically synchronized with the other
devices.
