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User's Manual

ManualsBrandsFutaba ManualsComputers & AccessoriesWireless Modem with Serial Interface
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REG00: Local Station Address [default value: 000]
•
Sets the local station address. Valid values are 000 to 999.
•
This value is inserted in the “source address” field in the transmitted packet header.
•
If the address check function is enabled (REG18) in the receiving modem, the
modem can receive the packet which header contains destination address
information identical to REG00.
REG01: Local Station Group Address [default value: 240]
•
Sets the local station global address of the modem. Valid values are 240 to 254.
•
When plural modems are connected by RS485 multi-dropping topology, commands
can be issued to multiple modems simultaneously by setting all connected modems to
the same group address. This is the group addressing.
•
This group addressing allows to handle multiple multi-dropped modems as if they
were one modem.
REG02: Destination Address [default value: 000]
•
This address is used in the data transpalent mode and headerless stream mode.
•
Valid values are 000 to A23(1023).
REG03: Reserved [default value: F0H]
•
The FDL01TU does not use this register. Keep the default value as it is.
REG04: ID Code 1 [default value: 00H]
•
Used with ID code 2 (REG05), set the ID code. Valid values are 000 to 255.
Together with ID code 2, up to 65535 ID codes can be set.
•
The ID code identifies the group of the modems works in the same group. The ID
code is used to prevent erroneous connection with other systems and for
communication security.
•
Before transmission, radio data packets are scrambled using a pseudo-random data
sequence generated with this ID code as the seed. During reception, the original data
is restored by de-scrambling it with the pseudo-random data sequence. The modems
with different ID codes cannot communicate with each other.
REG05: ID Code 2 [default value: 00H]
•
Used with ID code 1 (REG04), set the ID code. Valid values are 000 to 255.
Together with ID code 1, up to 65535 ID codes can be set.
•
In case plural modems are used as a single system, always set the same ID code for all
modems and repeaters.