MR ETOS TD, Operating Instructions Manual

Page: 91 / 356

9 Visualization
Maschinenfabrik Reinhausen GmbH 2020 91 4453918/14 EN ETOS
®
TD
ASDU single character confirmation
You can use this parameter to set whether a confirmation is to be sent as
single characters instead of as a complete message. Single character confir-
mation is only possible for requesting data of class 2 (Class 2 Request).
RES bit test
You can use this parameter to set whether the device is to check the RES bit
(Reserved Bit) in the control field. You can select the following options:
Option Description
On Messages from the master with RES bit = 1 are declined
by the device.
Off Messages from the master with RES bit = 1 are accepted
by the device.
Table 22: RES bit test
ASDU sequence optimization
With this parameter, you can set which method is to be used for optimizing
the ASDU types. The standard enables optimization in order to be able to
transfer multiple value changes in a telegram in a sequence of ascending in-
formation object addresses. This is displayed by the sequence bit. The se-
lection of ASDU types for which this optimization is allowed is based on the
edition of the standard.
You can select the following options:
Option Description
None The device does not optimize the ASDU types.
Ed. 1 Optimization in accordance with IEC 60870 Edition 1
(Type 1, 3, 9, 11, 21, 126).
Ed. 1 Amendment2 Optimization in accordance with IEC 60870 Edition 1,
Amendment 2 (Type 1, 3, 9, 11, 13, 15 21, 126).
Ed. 2 Optimization in accordance with IEC 60870 Edition 2
(Type 1, 3, 5, 7, 9, 11, 13, 15, 20, 21, 126).
Table 23: ASDU sequence optimization