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4
Putting into operation
4.1
Putting into operation for the first time
a) Connect the device to a 24 V DC source which is able to provide a minimum of 1 A. Connect the antenna with
the device. Connect a Personal Computer or equivalent to the device via the RS 232 interface. Please assure
the interface is set to the right baud rate.
b) Establish a connection to the reader (parameter: 19200 baud, 8N1)
by using an appropriate software (for ex-
ample Windows terminal program). Test the configuration of the reader with the command VS.
c) If the device is in operating mode 2, each reading has to be startet using the GT command transmitted on the
serial interface. If the device is in operating mode 0, the scanner will send transponder numbers to the comput-
er, as long as a tranponder is in the active antenna field.
d) After the device is successfully tested as described above, you can set the reader configuration as needed. De-
tails how to change the configuration of the scanner are described in the ASB description.
4.2
Trouble shooting
Should the reader not work as desired, please check the following:
a) Is the configuration of the reader as wanted? Check with help of the command VS!
b) Is the configuration not known, the baud rates of reader and terminal set different?
Restore the basic setting of the parameters values as follows!
Put DIP-switch 1 ON, make a cold start by interrupting the power supply, put DIP-switch 1 OFF again. Now
all paramter values are set to the default values, the reader will work in normal condition. Attention! All set-
tings are temporary. This means they are lost after switching of the reader. Make the setting permanent using
the command VSAVE.
c) Is the antenna defect or not properly connected? (In that case LED 2 is not on although the reader is in read
mode)
d) The transponder is not in the active antenna field. Bring the transponder closer to the antenna.
e)
Antenna mounting is wrong (for example on a metal plate). In such a case, it can happen that the radiated
antenna power is consumed by eddy currents in nearby metal structures. An indication for such situation is an
exceptional high current consumption of the reader.
Noise can also reduce the read range.
f) High frequency fields radiated by other devices interfere with the reader communication. Please check if such
devices are near to the antenna or the antenna cables. Typical devices which interfere on the reading range are
for example: some monitors for computers, switched power supplies, electrical motors, etc. Please remove such
devices or remove the radiated interferring filed by proper grounding.
g) If the mechanical configuration of metal pieceparts can not be changed and or not suitable for proper read-
ings. Please check, if with a different antenna better reading results can be obtained. Also electrical insulation
for metal parts against each other can help to reduce the eddy current effect.
f)
If the noise resistance or reading frequency of the reader was reduced by changing the parameters NID or
NRD, please return the reader to the preset configuration of the manufacturer.
g)
LED5 is on indicating an hardware failure. If a reset after checking all above points does not help return the
device for repair.