
65
Is
s
u
e
d
a
te
:
7
.6
.2
0
1
3
AS-i 3.0 Command Interface
Commands of the Command Interface
4.4.19
Read extended earth fault information (MB_OP_GET_EXT_EF)
With this call the extended earth fault information will be read out.
!!!
The command MB_OP_GET_EXT_EF is valid only for the use with masters
which support this function.
Please see the user manual of the master for further information.
Request
Byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
97
16
2
T
–
circuit
Tab. 4-113.
Response
Byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
97
16
2
T
result
3
DC voltage, low byte
4
DC voltage, high byte
5
percentage earth fault relationship with an offset of 128
1
1.
Example: A percentage earth fault of -100% is indicated in byte 5 with the value 28, a percentage earth
fault of +100% with the value 228.
6
reserved
circuit
reserved
ES
7
NS
8
AP
Tab. 4-114.
ES:
Earth fault in AS-i circuit
NS:
0: AS-i circuit is the source of failure
1: AS-i circuit is
not
the source of failure
AP:
supply:
0: grounded 24VDC
1: AS-i power supply
Содержание AS-I 3.0
Страница 1: ...AS I 3 0 COMMAND INTERFACE FACTORY AUTOMATION MANUAL...
Страница 177: ......