Eltek TU 1004 User Instructions Download Page 4

Channel Set-up Procedure

Transmitter present:

* To gain access to the transmitter programming socket the bottom cover must be 
removed (2 x pozi-drive screws). Carefully remove the battery pack but do not 

disconnect it. The programming socket is a 3mm stereo jack socket that will now be 
accessible.

Pulse count transmitters use an internal counter which counts from 0 to 65535 and is 

incremented each time a pulse is measured. The counter rolls over when it reaches 
65535. Transmitters will send the current value of their internal counter each time they 

transmit. It is therefore necessary to perform a calculation in the receiving software / 
device which subtracts the previously received pulse counter value from the current 

one, giving the number of pulses counted.

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Using pulse count transmitters

Start up the Configuration program. (If this is the first time it has run you will need 

to configure the serial port(s) using 

>

.) 

Connect the PC to the RC250 using the LC68 programming lead (and USB 

converter if required)

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  programming lead.
Use 

to set the TX serial port.

Get the transmitter details using the Get TX button (the TX serial number will 

appear)

Set the transmitter interval. This should be about one sixth of the update interval 

required in the PC (or connected monitoring device)

Click on a channel, click 

, and choose input type from drop down. 

Click 

 to confirm.

Repeat for channels applicable to connected TX
Repeat if a number of transmitters are being added to the RC250
Connect the PC to the RC250 using the LC68 programming lead
Select the destination RC250 channel (by single clicking and highlighting it)
Select the required transmitter channel (by single clicking and highlighting it).
Copy the channel details to the RC250 configuration using the 

 button. Note 

RXconfig will assume the next TX channel and next RX channel are to be linked. 
Click the 

 button to confirm or set up as required.

Copy the configuration to the RC250 using the

 Button.

File   Properties

Get RX

File  Properties 

Select Range

OK

>>

>>

 Set RX

*

Page 4 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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