isoBAT425_D00308_04_M_XXEN/07.2020
30
IsoData data string
9. IsoData data string
In IsoData mode, the ISOMETER® continuously sends the whole data string with a cycle
time of approximately 1 second. Communication with the ISOMETER® in this mode is not
possible and no additional sender may be connected via the RS-485 bus cable.
IsoData is activated
in the menu "out"
,
menu item "Adr"
when it has been set to Adr = 0.
In this case, the symbol "Adr" flashes on the measured value display.
String
Description
!;
Start symbol
v;
Insulation fault location ' '/'+'/'-'
1234, 5;
Insulation resistance
R
F
[kΩ]
1234;
System leakage capacitance
C
e
[nF]
1234, 5;
Reserved
+1234,5;
Nominal system voltage
U
n
[V
DC
]
+1234,5;
Residual voltage
U
L+e
[V
DC
]
+1234,5;
Residual voltage
U
L-e
[V
DC
]
+123;
Insulation fault location -100 … +100 [%]
1234;
Alarm message [hexadecimal] (without leading "0x")
The alarms are included in this value with the OR function.
Assignment of the alarms:
0x0002 Device fault
0x0004 Prewarning insulation resistance
R
F
at
L+
0x0008 Prewarning insulation resistance
R
F
at L-
0x000C Prewarning insulation resistance
R
F
symmetrical
0x0010 Alarm insulation resistance
R
F
at L+
0x0020 Alarm insulation resistance
R
F
at L-
0x0030 Alarm insulation resistance
R
F
symmetrical
0x0040 Alarm undervoltage
U
n
0x0080 Alarm overvoltage
U
n
0x0100 Message battery voltage
U
n
ok
0x0200 Message system test
0x0400 Device start with alarm
12
Update counter, consecutively counts from 0 to 99.
It increases with the update of the insulation resistance value.
<CR><LF> String end
