Installation Guide Probe Troubleshooting
33
TXID Column
A site's wireless system can support up to 16 transmitters and each must have an unique ID. This column
shows the ID that was set in the transmitter when it was installed.
STATE Column
The device state is OK or OUT. When the state is OUT, the TLS RF unit will not respond to the TLS
console polling for this device. The OUT state will cause the TLS console to post a Probe-Out or Comm
alarm for this device.
REASON Column
There are four reasons for a device to have an OUT state:
NO_CNST
In order to conserve energy the transmitter sends messages in 3 groups: constant data, fuel/water data,
and fuel/water/temperature data.
For a given sensor, constant data never changes so it only needs to be transmitted once. It is however
transmitted for two-minutes following transmitter power-up, or the triggering of its service switch
(magnetically activated reed switch) and then settles down to once every 4-hours. The TLS RF unit will
store the constants in non-volatile memory so that the constant data can be restored after a power cycle.
The status of a device will be OUT if the constant data has not been received (NO_CNST).
NO_DATA
Fuel/Water data is transmitted at different rates depending on activity and power-up/service switch status.
The maximum transmission period is 2-minutes, the minimum 5-seconds.
Temperature does not have to be read as often as fuel/water data. It is transmitted once every 2 minutes
along with the fuel/water data. The status of a device will be OUT if it has not received
fuel/water/temperature data (NO_DATA).
TIMEOUT
If no transmissions are received for the timeout duration programmed in the TLS RF unit, the device OUT
status’s reason will be set to TIMEOUT. This state overrides all other states.
NO_READ
The transmitter can detect when a device is not responding correctly. In this case the transmitter will
transmit a device-out message. In turn the TLS RF will set the status of a device to OUT (NO_READ).
On power-up the TLS RF unit will read its non-volatile memory to restore constant data. If the constant
data is available it will then set the device to the OUT condition with the reason code: NO_DATA. When
fuel/water level and temperature data are received the NO_DATA condition will be removed and the
device will be set to the OK status. If there is no constant data the device OUT reason code will be
NO_CNST. The device will be removed from this state when constant and fuel/water/temperature data
are received. If no transmissions are being received from the device the TIMEOUT reason code will
replace the previous reason code.
TYPE and SN Columns
If the device constants are available, the device type and device serial number will be placed in these
columns. If the constants are not available the type column will be filled in with ‘?????’ and the serial
column with all zeros (000000).
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