Instructions

CHANNEL selects the frequency channel on which the RF transceiver oper
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ates. For two devices to communicate, they must use the same channel. Make
sure the CHANNEL setting is set to the same number as the modem with
which this instrument will be communicating. Frequencies used by RF commu
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nication may also be used by other types of equipment, with the potential for
interference. The user might need to try different channels to find one that pro
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vides the most reliable operation in a particular environment. The range of
CHANNEL is 12 to 24.
PAN ID sets the wireless network identification number. For two devices to
communicate, they must use the same PAN ID number. Make sure PAN ID is
set to the same number as the modem with which this instrument will be com
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municating. The range of PAN ID is 0 to 65535.
INST sets the identifying address of this instrument. The instrument will only
accept commands that are addressed with this number. The remote modem will
use this address to send commands to the instrument. This address should be
distinct from those of other devices on the same network. The range of INST is
0 to 65535.
MODEM sets the address of the remote modem with which the instrument is to
communicate. The instrument will send out responses addressed with this num-
ber. The remote modem must also be set to this address to receive the re-
sponses. The range of MODEM is 0 to 65535.
When the parameter window is exited, there might be a delay of several sec-
onds as the RF transceiver is updated with the new settings.
Avoid communication conflicts by making sure all instruments in range of each
other that operate with the same CHANNEL and PAN ID numbers have differ-
ent INST addresses, and likewise all modems have addresses different from
each other and all instruments. If multiple pairs of devices are to operate simul-
taneously in range of each other, use different CHANNEL numbers to avoid
interference.
The RF interface is based on the 802.15.4 standard (which is the basis for the
ZigBee). It operates in the license-free 2.4 GHz frequency band, with a very
low transmission power of 1 mW. Typical unobstructed range is 100 ft. (30 m).
The range might be reduced if RF-reflecting walls, obstructions, or interfering
electronic equipment are nearby. Some channel numbers might work over far
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ther ranges than others.
7.5.3.3 LAN
The LAN port allows the instrument to receive and respond to commands from
a remote computer through an Ethernet IP network. (See Section 8 for a list of
commands.) Redirector software can be installed on a computer to map the
TCP/IP link with the instrument to a virtual COM port. Windows®
Hyperterminal may also be used. Communications uses TCP port 10001. The
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7 Menu Functions
System Menu