Tecfluid MX4B - Manual (Page 13)

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The received code in the example is 0x0007 that corresponds to l/h.
7 ELECTRICAL CONNECTION
For the electrical connection, the MX4 converter has two terminal strips. To help in the
wiring of the equipment, the description of the terminals is marked on a label in the rear
cover of the device.
For the electrical connection it is recommended to use multiple conductor cables with
individual cable sections in the order of 0.25 to 0.5 mm
2 .
Before starting the installation, check that the cable glands are the right size for the
cables to be used. This will guarantee the instrument will stay watertight. The cable
glands used are for cables with outside diameters between 3.5 mm and 10 mm.
To connect the cables, peel the outside insulation to free the inner cables. It is
recommended to put a terminal at the ends of the wires to avoid loose ends. Pass the
cables through the cable glands and screw down in the corresponding positions of the
terminal strip. Once the wiring is finished make sure that the cables are well gripped by
the cable glands to maintain the degree of protection.
Incorrect installation of the cable gland or inadequate cable placement can cause
irreparable damage to the converter.
The recommended cable is a three wire cable with a shield. These cables should have a
characteristic impedance of 120 Ω.
The slave responds after more than 3.5 characters, indicating its identification, the
requested function code, the number data bytes, read data and the CRC.
01 03 02 00 07 F9 86
N. de bytes Units code Slave ID (MX4B) CRC Function