Eltek TU 1004 Manuale utente

Eltek TU 1004 User Instructions for RC250 receiver

Packed items

RxConfig software

RxConfig can also be downloaded from: www.eltekdataloggers.co.uk

When installed, RxConfig creates a folder “Eltek”. In this folder are the

RC250 documents for details of Modbus over serial, etc. for Modbus

limitations.

The program allows the user to:-

RC250 receiver with serial and Modbus output

Antenna (basic whip) –Eltek type UHFFlexi/SMA

MP12U5W power supply with regional adaptor

LC68 –RC250 to PC serial lead

USB to serial converter lead

LCTX3 –Transmitter to PC serial lead

RxConfig software

Read transmitter settings

Set the transmitter interval

Associate an RC250 Channel with a specific transmitter channel

Meter configured RC250 channels

Operation

Power Requirements

The RC250 works by first receiving a data 'packet' from a transmitter, verifying it, then

storing it to be read by the external device or PC. It is verified by means of a checksum

contained in the message and the associated transmitter number.

If the RC250 does not 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 the PC is updated every 30

minutes, so the transmitter interval is set to 5 minutes (that this PC update period ÷ 6)

and the “No Data”interval to 2 hours. (that is PC update period x 4). If the transmitter

stops transmitting for any reason the PC should register this fact after 2 hours.

The RC250 requires permanent AC mains connection. Use only the AC power supply type

MP12U or the provided MP12U5W. Built-in Ni-Mh batteries provide up to 3 days standby

in the event of power failure. A fully discharged battery is charged in 72 hours. Once the

batteries become low the RC250 will switch itself into a low power mode and turn off the

receiver. will appear in the display.

Note: the RC250 is despatched in the mode.

The RC250 will power up (turn on) next time external power is applied. The display will

then switch to working mode. The RC250 can be turned off by removing the external

power and then clicking > or briefly pressing the concealed

switch accessed through the case rear.

OFF

Tools Turn Receiver Off

Page 1 of 8

Application

Locating the RC250

LED Indicator

RC250 programming leads

File Properties

For users who wish to use the Eltek GenII series of transmitters with third party or

proprietary software. The RC250 can also be used to interface GenII transmitters to an

existing data acquisition system such as the Datataker DT80 using Modbus.

The RC250 and antenna should be located in a position clear of interference, in particular

that generated by computers and monitors, and away from surfaces that can compromise

RF performance e.g. steel or damp or reinforced walls. Use of the optional dipole antenna

will maximise coverage.

A red LED on 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 as required. Note, in > the PC com port can be

nominated. Y

Top panel connections

LC68 –used to program the RC250 from the PC serial port or via the USB adaptor if

no serial port is available

LCTX3 –used to program the Transmitter from the PC serial port or via the USB

adaptor if no serial port is available

ou can use the in Windows to list the COM ports available

on your computer. Type in the Windows 7 search box to open this, and

look for . USB to serial converters supplied by Eltek are listed as

Device Manager

Ports Prolific USB-to-

serial

12V DC

regulated

comms

12VDC

(inner is -ve)

Comms

(6 way mini Din)

Page 2 of 8

Using Receiver Config - From V1.1

File

Properties

Menu:

Load the program on your PC –it will try to find an existing Eltek folder. To program the

RC250 use the LC68 lead. Connect one end to the serial port of the PC and the other to

the mini DIN socket situated on the top panel of the RC250. Set the Com port using >

File Load Receiver Upload an existing RC250 configuration

File Save Receiver Save the current RC250 configuration

File Properties Select PC serial port for communications with RC250 and

Transmitter

Tools Turn Receiver

off

Turns receiver off (display indicated OFF)

Tools ModBus

Setup

Sets device (node) address and register addresses 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

Applicable only to transmitter where the external sensor

needs power before a reading can be taken. E.g.

GS42/GS44 and GD43

Get RX Get the current configuration from the RC250

Set RX Set the configuration in the RC250

Start Meter /

Stop Meter

Load table with received data

Edit Chan Click over a channel, click Edit Channel to edit. (Use to

accept a transmitter not available for direct connection.)

Clear Chan

data

Click over a channel, click Clear Channel data

Set Nbr Chans Enter Number of channels to display (160 maximum) and

click to confirm (this reduces unnecessary

on screen information and speeds up the interface).

Set Nbr Chans

Page 3 of 8

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.

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

Set RX

Page 4 of 8

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

Modbus configuration

The ModBus Setup menu allows the configuration of the ModBus node address and

channel registers. Node Address should be set to the required 'Slave ID'. The following six

boxes are for specifying addresses of holding registers for reporting the transmitter

information. The value in each of these boxes must be greater than that in the previous

box. Note the both the 'Reg' address boxes (Raw and Scaled) are only the start addresses

for those registers, and gaps must be left after each of at least the number of channels

configured in the RC250.

Field Description

Node Address ModBus slave ID

Raw Reg Address Base address of Holding Registers for raw value from the sensor

Scaled Reg

Address

Base address of Holding Registers for range-scaled value from the

sensor

Scaling Address Address of Holding Register for scaling factor

Battery Address Address of Holding Register with the most recent battery level

Nbr Tx Address Address of Holding Register containing transmitter serial number

Age Address 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 the data start at the respective ‘Base

Addresses' described above. When reading channel values, it is possible to read several at a

time using the 'Quantity of Registers' field, but note that RC250 is limited to 50 registers at a

time.

There was a convention that is still sometimes used with ModBus which refers to the

Holding Registers in the form 4xxxx. With this scheme, what is referred to as 'Holding

the Modbus message (in this case 0000), and we do not use the '4xxxx' prefix. Occasionally

you may come accross other manufacturer's systems that do not even correctly handle this

offset of 1.

Example request to retrieve holding register 100 (set up to contain the raw value from

channel 1) from node address 6:

Slave Address 06

Function 03

Starting Address Hi 00

Starting Address Lo 64

No. of Registers Hi 00

No. of Registers Lo 01

Page 6 of 8

Page 7 of 8

Example response from RC250:

Slave Address 06

Function 03

Byte count 02

Raw Val Hi 06

Raw Val Lo 2b (in decimal, 1579)

CRC Hi 4e

CRC Lo 3b

Example request to retrieve holding register 200-201 (set up to contain the scaled values

from channels 1 and 2) from node address 6:

Slave Address 06

Function 03

Starting Address Hi 00

Starting Address Lo c8

No. of Registers Hi 00

No. of Registers Lo 02

Example response from RC250:

Slave Address 06

Function 03

Byte count 04 (2 readings, so 4 bytes)

Raw Val Hi 00

Raw Val Lo e6 (in decimal, 230 - meaning 23.0 degrees)

Raw Val Hi 01

Raw Val Lo ed (in decimal, 493 - 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

conditions. These numbers are:

65441 (0xFFA1) - Value is above maximum value of range

65442 (0xFFA2) - Value is below minimum value of range

65444 (0xFFA4) - Sensor is open circuit

65531 (0xFFFB) - No Data

65532 (0xFFFC) - Dummy

Scaled Reg Address Values use the scaling address to represent these same conditions.

The scaling address field, for normal values, would contain a scaling factor of 0 to 4.

Values from 240 (0xF0) upwards contain the following error conditions:

240 (0xF0) - Value is above maximum value of range

241 (0xF1) - Value is below minimum value of range

242 (0xF2) - Sensor is open circuit

243 (0xF3) - No Data

244 (0xF4) - Dummy

Product Specification

Maximum no. Channels 160

AC supply 100 to 250V AC (Use only Eltek power supply type

MP12U / MP12U5W)

DC input 12VDC Maximum current <150mA

Battery endurance Up to 72 hours

Controls Concealed button (power off)

Freq. UHF (Europe) Default is 434.225Mhz (the label on the base will give

the exact frequency)

Freq. US Default is 914.5Mhz

Rx sensitivity -117dbm (typical)

Antenna connection SMA socket

Antenna –standard ¼ wave whip (shipped with product) –Eltek type

(supplied)_ UHFFlexi/SMA

Antenna –lightweight dipole Indoor/outdoor dipole, lead length 5m standard,

(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.

Temperature Range -10 to +55ºC

Humidity 95% non condensing

Environment Indoor use only IP40. A secondary enclosure must be

used for outdoor use

Transmitter types All in GenII range from serial number 7000

Transmitter Interval 1 second to 4 hours

TU1004GB 14/11/13 Page 8 of 8

Serial Data

Both ModBus and RC250 Serial Interface protocols are implemented on an RS232

interface. The interface requires no configuration and will automatically respond

appropriately to either protocol. It is preset to these settings:

Baud Rate 19200

Data Bits 8

Stop Bits 1

Parity None

Indice

Altri manuali Eltek Ricevitore

Eltek

Eltek GenII RC250 Manuale utente

Manuali Ricevitore popolari di altre marche

Garmin

Garmin GA 23 Manuale utente

Aiphone

Aiphone PS-12F Manuale utente

IMES

IMES TCS-01CA-PMI Manuale utente

BWI Eagle

BWI Eagle AIR-EAGLE SR Manuale

AMIMON

AMIMON AMN12310 WHDI Manuale utente

Dual

Dual DMCPA79BT Istruzioni operative

Sound Associates

Sound Associates SA652P Manuale utente

Sherwood

Sherwood NewCastle R-772 Manuale utente

Audio

Audio A10-RX Series Manuale utente

AllSee

AllSee PushShare PSRV1.1 Manuale utente

DEMAG

DEMAG DRC-DR D2 Manuale utente

Teleco

Teleco TVRCL868A02 Manuale utente

Bosch

Bosch RF3222E Manuale utente

Kramer

Kramer 631R Manuale utente

Xpress

Xpress xmc10 Manuale utente

JVC

JVC KD-MR1BTS Manuale utente

Omega Engineering

Omega Engineering UWTC-REC3 Manuale utente

e-survey

e-survey E300 Pro Manuale utente