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External sensors EXT DL
Address for
external value 1
Address for
external value 2
Address for
external value 6
Electronic sensors for temperature, pressure, humidity, differential pressure, etc. are also
available in the DL version. In this case, the supply and signal transmission takes place via
the DL bus.
Up to 6 values from external sensors can be read via the DL bus.
E1 = -- The external value 1 is deactivated and faded out in the main level.
E1 = 11 The front number indicates the address of the external sensor. This can be set to
between 1 and 8 on the sensor according to its operating instructions.
The rear number indicates the index of the sensor. Since external sensors can
transmit numerous values the value required from the sensor is defined via the
index.
The setting of the address and index can be taken from the respective data sheets.
Due to the relatively high power requirement, the "bus load" must be considered:
The controller ESR31 delivers the maximum bus load 100%. For example, the electronic
sensor FTS4-50DL has a bus load of 39%, therefore up to a max. 2 FTS4-50DL can be con-
nected to the DL bus. The bus loads of the electronic sensors are listed in the technical data
of the respective sensors.
Simultaneous power supply to a boot loader and external sensors is not possible. It this case,
the boot loader must be supplied via a power pack (CAN-NT).
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