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7 Operation
Maschinenfabrik Reinhausen GmbH 2019
266
5163667/06 EN
ETOS
®
IM
DFC compatibility
With this parameter, you can set how the device is to use the DFC bit (Data
Flow Control) in the control field. You can select the following options:
Option
Description
Standard
The device sets the DFC bit in each response to a com-
mand. The device thus indicates that the master may not
send any further commands. The master must react to
the ACD bit (Access Demand) and retrieve the response
to the command e.g. via a request for data of class 1
from the slave queue.
Alternative
The device sets the DFC bit in a response if a second
command is received without the master having previ-
ously sent a request for data of class 1.
Table 72: DFC compatibility
To set the DFC compatibility, proceed as follows:
1. Go to
Settings > Parameters > IEC 60870-5-103 > DFC compatibility
.
2. Select the desired option.
3. Press the
Accept
button to save the modified parameter.
Reference time
You can use this parameter to set which time is to be transmitted by the con-
trol system. The device uses this information for time synchronization
[
Section 7.25, Page 292]. You can select the following options:
Option
Description
Local
The control system transmits the local time.
Section 7.25.5, Page 295]. Otherwise
the device will use an incorrect time.
UTC
The control system transmits the time as UTC. The de-
vice calculates the local time from UTC and the set time
zone [
Table 73: Reference time
To set the reference time, proceed as follows:
1. Go to
Settings > Parameters > IEC 60870-5-103 > Reference time
.
2. Select the desired option.
3. Press the
Accept
button to save the modified parameter.
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