2.32 RTD-Box
193
7UM61 Manual
C53000-G1176-C127-3
Figure 2-75 Logic Diagram for Temperature Processing
2.32.2 Setting Notes
General The temperature detection function is only effective and accessible if it has been as-
signed to an interface during the configuration of the protection functions (Section
2.2). At address 190 RTD-BOX INPUT the RTD-box(es) is allocated to the interface
at which it will be operated (e.g. port C). The number of sensor inputs and the commu-
nication mode were set at address 191 RTD CONNECTION. The temperature unit (°C
or °F) was set in the Power System Data 1 at address 276 TEMP. UNIT.
If the RTD-boxes operate in half duplex mode, it has to be selected for the Clear-to-
Send function (CTS) using plug-in jumpers (see Subsection 3.1.2) “/CTS triggered by
/RTS ” must be selected.
Device Settings The settings are the same for each input and are here shown at the example of mea-
suring input 1.
Set the type of temperature detector for RTD 1 (temperature sensor for measuring
point 1) at address 9011 RTD 1 TYPE. You can choose between Pt 100 Ω, Ni 120
Ω and Ni 100 Ω. If no temperature detector is available for RTD 1, set RTD 1 TYPE
= Not connected. This setting is only possible via DIGSI
®
at "Additional Settings".
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