9 Communication
9.3 IEC 60870-5-104
193
SICAM MMU 7KG9663, Device Manual
E50417-H1040-C514-A3, Edition 01.2016
Data Exchange between IEC 60870-5-104 Master and SICAM MMU
IEC 60870-5-104
must be selected as bus protocol in both equipment.
The IEC 60870-5-104 master can access indications in the SICAM MMU and change controllable indications.
The following indications are important for reading and writing from/to the SICAM MMU:
Indication x from remote
(in SICAM MMU):Can be controlled by the IEC 60870-5-104 master and is trans-
mitted to the SICAM I/O Unit 7XV5673 if
Source of Output x
is
parameterized for the subdevice.
Binary input x from I/O Unit
:
The values read at the binary inputs of the SICAM I/O Unit
7XV5673 are automatically assigned to indications that the
IEC 60870-5-104 master can read.
Data Exchange between SICAM MMU and SICAM I/O Unit 7XV5673
I/O Mirror server
must be select in the SICAM I/O Unit as operating mode.
SICAM MMU can access indications of the SICAM I/O Unit 7XV5673 via Modbus UDP and change controllable
indications. The following indications are important for reading and writing from/to the SICAM I/O Unit
7XV5673:
Indication x from Remote
(in SICAM I/O Unit 7XV5673):Can be controlled by the SICAM MMU. The indica-
tion
Source for output x
, configured by the SICAM MMU for the
SICAM I/O Unit 7XV5673, is transmitted as
Indication x from
Remote
to the SICAM I/O Unit 7XV5673 (x = 1 through 6).
The
Indication x from Remote
indications are forwarded to the
binary outputs of the SICAM I/O Unit 7XV5673.
Binary input x I/O Unit
:
The values at the binary inputs are directly read by the
SICAM MMU and automatically assigned to the
Binary input x
I/O Unit
indications.
Examples of the Data Exchange between IEC 60870-5-104 Master and SICAM I/O Unit 7XV5673 via SICAM MMU
Fig. 9-5
Example 1 of Data Exchange
*)
In the SICAM MMU,
Indication 1 from Remote
and
Indication 2 from Remote
are provided for routing to
its binary outputs. Therefore, only
Indication x from Remote
(x = 1 through 6) can be forwarded to its binary
outputs 1 through 6 in the SICAM I/O Unit 7XV5673.
.
Fig. 9-6
Example 2 of Data Exchange
IEC 60870 -5-104-
Master
Indication 3 from
Remote
*)
(Indication in
SICAM MMU)
Indication 1 from
Remote
*)
(Indication in
I/O Unit)
Binary Output 1
of I/O Unit
IEC 60870-
5-104
Modbus UDP
Mapping
Binary
Output
Control of Binary Output 1 in I/O Unit
IEC 60870 -5-104
Master
Binary Input
1-N I/O Unit
(Indication in
SICAM MMU)
Binary Input
1-N I/O Unit
(I/O Unit)
Binary Input
1-N
in I/O Unit
IEC 60870-
5-104
Modbus UDP
Read
Binary Input
Read Binary Input 1-N from I/O Unit
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