
Temperature Menu
Page 18
The GEM provides various methods of reading and saving the ROM codes of the sensor:
Searching all sensors
Reading one sensor at a time
Manually entering the ROM code if provided with the sensor
SEARCH AND LIST ALL SENSORS
This function is used to discover and list all sensor codes discovered without saving them to a channel.
The reason for searching without saving is to prevent issues when adding more sensors. For example, if
three sensors are already installed and a new sensor is added, the search function may place the newly
found sensor in the “channel 2” location. This would displace the existing “channel 3” sensor to “channel
4” and the existing “channel 2” sensor to “channel 3”. This cannot be avoided since the order of the
sensors discovered is based on the search algorithm.
In order not to disturb the existing sensor channels, the option to “Search and List” is used allowing the
sensor code to be discovered and listed. The sensor may then be manually saved to a user assigned
channel. This is described later in this chapter.
Procedure
Make sure at least on temperature sensor is connected to the 1-Wire bus terminals.
Refer to Figure 14.
Select the “Search, List all sensor codes” (1) option and click “Go” (2)
After a couple of seconds the ROM code for each should be found and displayed as shown in
Figure 14 (3)
Notice that this option did not assign the found sensor to channel 1 (4). This is because this function was
for searching and listing only.
Figure 14
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