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miniELCOR
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17 Software settings of the device for proper
communication with external digital temperature
(EDT-34) or pressure transducer (EDT-23)
Chapter 5.3 describes how to extend device with pressure or temperature
digital transducer. Following software setting suppose already installed expansion
module RS-485 and also already connected digital transducer (EDT-34 or EDT-23).
Now we will describe how to add new digital transducer into software
parameters.
17.1 Adding of digital transducer into device’s parameters
As a first step it is necessary to readout parameters from the device (menu
Readout ->Parameters ).
Now click in parameters menu on „ miniElcor “ item. Using right mouse button
open menu. In opened menu select „ Insert object “ and in next selection choose
required transducer (e.g. temperature transducer EDT-34, see Fig. 69). Herewith we
have added digital transducer into parameters and now it is necessary to save
modified parameters into the device by clicking on „
Save into device “ button.
Now click in parameters menu on just added digital transducer EDT-34 (see
Fig. 70). Because it is a digital transducer connected to intrinsically safe serial
interface RS-485 such device must have assigned communication address. There
can come two possibilities in context of assigning of communication adress:
a) New digital transducer has the same address as is predefined in
parameters – standartly it is address no. 1 (see chapter 17.1.1.).
b) New digital transducer has different address than is stored in device’s
parameters (see chapter 17.1.2).
17.1.1 Newly installed digital transducer has the same address as is
predefined in device’s parameters (standartly address no.1)
In this case it is not necessary to change communication address. By clicking
on „ Parameters of module “ button (see Fig. 71) we will check if transducer is
communicating with the device. If everything is correct, window with transducer’s
parameters will appear (see Fig. 71). If service software will warn you, that „
Module
doesn’t respond “ it means that the address of transducer is different from address
preset in parameters and it is required to set correct address. Setting of the correct
communication address will be described in chapter 17.1.2 .
If transducer communicate without any problem (parameters of the module
were readed correctly), installation is finished.
Note: After adding of digital transducer it is possible (if needed) to make one or
two point calibration of transducer. (see Fig. 72).