Deister electronic RDL150 RS232, Инструкция по монтажу и подключению

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deister electronic GmbH 30890 Barsinghausen Germany 10
RDL150 RS485/RS232
V19/07/04
5.2 LED Explanation
1) Yellow LED: Line voltage indicator
After connecting the power supply, the device shows it is ready to operate by permanently
activating the yellow LED. If a transponder is read, the yellow LED turns off for a moment.
2) Green LED: Read indicator
If a transponder data was read, the answer telegram is sent and the reader activates
the green LED for about 50 ms. No visual activity of LED during write instructions.
3) Red LED: Status indicator
Displays error telegrams.The LED activates for about 200ms on the following events:
• Communication error telegrams
• Non executable commands
• If the reader is set to polling mode (see Rdemo description, chapter xx) and a transponder
is identified, the red LED lights up while the “valid data” is not polled by the host system.
4) General status indicator:
The green LED and the red LED are activated while the yellow LED is deactivated.
This occurs during:
• The start up phase after switch on the reader
• While updating the firmware
The description for upgrading the firmware will be found in chapter 6
• Undervoltage operation of the reader (e.g. U < 8 V/DC)