JUMO 706521, Operating Manual

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7 Configuration
7.11 External digital inputs
The external digital inputs are digital signals that are transferred to the device via an interface from ex-
ternal systems. The external digital inputs can also be written by a barcode scanner (see
chapter 11.4.2 "Texts and process values", Page 276).
The external digital inputs are pooled into groups along with other digital signals in the "Groups" config-
uration and are then available for further use via these groups.
Device dialog box
Parameter
Reset signal
The device can monitor the connection to the Modbus master as a Modbus slave. If the connection is
down (timeout from the master), a digital signal is activated (slave timeout ...). This signal can be used
as a reset signal to set the input to a defined value.
Using the device (slave) to monitor the Modbus connection only makes sense if the external master
writes to the input. If the external master only has read access to the input, this function has no meaning.
Parameter Selection/settings Description
Channel designa-
tion eDI ...
Use default text or enter other text.
Name (abbreviation) with max. 5 charac-
ters that is used in the visualizations.
Channel descrip-
tion Ext. digital input ...
Use default text or enter other text.
Description (designation) with max. 21
characters (for PCA3000)
Signal inversion Inversion of the input signal
No The signal is not inverted.
Yes The signal is inverted.
Reset signal Digital selector
No selection
The reset signal (high active) sets the
digital input to a binary value of 0.
Save using power
off No
Yes
If "Yes", the current value is saved upon
switch-off (power off) and is available
again upon switch-on (power on).
?