Wireless Room Sensor Solution
Use the WRS HMI to con
fi
gure parameter values for both devices. All con
fi
guration settings are stored in
EEPROM and persist through any power disruptions (including changing the battery).
To view factory default values for the WRS (or RSX), you can use the
DEFAULT WRS
(or
DEFAULT RSX
) command.
To con
fi
gure WRS and RSX parameters:
1. Connect a computer cable (540-143) from a computer to the RJ-11 port on the bottom of the WRS.
The WRS wakes up and remains active for the amount of time speci
fi
ed by its HMI/MMI port timeout
setting (factory default = 5 minutes). If the WRS returns to sleep mode before you are done, disconnect
and then reconnect the cable to the HMI port.
2. Start a HyperTerminal session, log on (1200 baud, 8 data bits, no parity, 1 stop bit, no
fl
ow control), and
then press
ENTER
to display the WRS prompt.
If there is no communication with the WRS, verify that the battery is properly inserted and the plastic
insulating strip is removed.
3. Review the WRS/RSX con
fi
guration:
a. Type
PARAM WRS
and press
ENTER
.
b. Type
PARAM RSX
and press
ENTER
.
c. Note any settings that must be changed.
4. As needed, change WRS or RSX con
fi
guration settings:
Change the point number for any WRS point that is not used or has a different point number in
the TEC application. For unused points in the TEC application, change the number to
0
.
a. Type either
SET WRS
or
SET RSX
(see Table 4) and then press
ENTER
.
b. For each setting, either type the new value and press
ENTER
, or just press
ENTER
to keep the
current value and go to the next setting.
c. Type
Y
to reboot the WRS or RSX and save the setting(s).
5. Disconnect the computer from the WRS.
6. Repeat Steps 1 though 5 for all WRSs.
7. If desired, you can use the workstation features to de
fi
ne alarms for WRS low battery voltage and loss
of wireless communication events using the value of TEC point 99 (see Table 6 for details).
Revision Date: July 10, 2008
21
Siemens Building Technologies, Inc.
