Eltek TU 1004 User Instructions Download Page 5

Chan

This is the RX250 channel allocated (1 - 160 max)

Tx Chan

This is the TX channel allocation and is always an alpha character typically A 

to H

Tx Range

TX Chan range e.g. Humidity SHT if the B channel of a GD10

Value

Tx Value of last valid data received expressed in units allocated to the range. 

These can be default or configured as engineering units.

Batt

TX battery condition expressed in %

Age 

Time, in seconds since last valid value received. Value will not be normally 

greater than 2 x TX interval. If greater than 2 x TX interval this can indicate 
permanent or temporary loss of communications and should be 

investigated.

Nbr TX

Is the number of successful transmissions received, indicating reliability of 

performance and is for statistical purposes only.

Columns in the RX Configuration panel table:

No Data Interval

Within the Edit RX channel is the feature 

.

The RC250 expects new channel information from the transmitter on a frequent basis to 
refresh the last valid value held in a buffer. If data is not received 

, e.g. due to transmitter failure, the value is reported as 

. This in turn can be 

processed as appropriate to the application by the connected software. 
The No data Interval will default to the TX interval x 6 and can be set (as hh.mm.ss) for 

special applications on a per channel basis.

No data Interval

No Data

within a configurable 

period

Page 5 of 8

Summary of Contents for TU 1004

Page 1: ...ot receive a message from a transmitter within a configured time the stored value will be set to no data For more detail see P6 No Data interval Example application Typically data from the RC250 to th...

Page 2: ...n the top of the RC250 Indicates the receiver has successfully received a valid data packet A single serial port on the PC can be used but this will mean having to change over the LCTX3 lead and LC68...

Page 3: ...es for ModBus communications See ModBus Configuration section Buttons Get TX Get the current configuration from the Transmitter Set Interval Set TX Interval use the drop down menu Set Sensor On Time A...

Page 4: ...equired Get the current or start a new RC250 Configuration using the button you should see the details appear in the right hand list box Now connect each transmitter to the PC using an LC TX3 programm...

Page 5: ...communications and should be investigated Nbr TX Is the number of successful transmissions received indicating reliability of performance and is for statistical purposes only Columns in the RX Config...

Page 6: ...ss Base address of Holding Registers containing age of each value When reading the values from the RC250 the only Function Code that can be used is Read Holding Registers 0x03 The registers containing...

Page 7: ...meaning 49 3 RH CRC Hi ac CRC Lo d9 Raw Reg Address Values other than pulse counts contain values less than 65000 Numbers starting from 65441 0xFFA1 are used to represent out of range or fault condit...

Page 8: ...dard optional accessory type LW ANT SMA The maximum recommended lead length is 10m Antenna compact Yagi Lightweight 3 element Yagi providing up to 6db gain optional supplied with 5m lead and plug Temp...

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