LAUMAS TLM8 Скачать руководство пользователя страница 31 | Manualshive

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LAUMAS TLM8 Скачать руководство пользователя страница 31

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RS485 SERIAL COMMUNICATION

If  the  RS485  network  exceeds  100  metres  in  length  or  baud-rate  over  9600  are
used,  two  terminating  resistors  are  needed  at  the  ends  of  the  network.  Two
120 ohm  resistors  must  be  connected  between  the  +   and

terminals of the

line, on the terminal strip of the furthest instruments

.

Should there be different

instruments or converters, refer to the specific manuals to determine whether it is
necessary to connect the above-mentioned resistors.

DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER

Since a two-wire RS485 output may be used directly on the RS-232 input of a PC or remote display

or printer, it is possible to implement instrument connection to an RS-232 port in the following
manner:

INSTRUMENT

RS232

RS485



RXD

GND



GND

This type of connection allows A SINGLE instrument to be used in a ONE WAY
mode.

40

TLM8

RS485 +

RS485 -

max 500 m

RS485

+

RS485

-

R

S4

85

+

R

S4

85

-

R

S4

85

+

RS48

5

-

3

2

5

P

C

R

S

23

2

RX+

RX-

TX-

TX+

CONVLAU

24 VDC

+

-

0

TX
RX

VIN

RS485 +
RS485 -

0

VDC

0

VDC

0

VDC

TLM8

TLM8

39

42

40

39

42

40

39

42

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Содержание TLM8

Страница 1: ...on 1 01 TLM8 2004 108 EC EN55022 EN61000 6 2 EN61000 6 4 SYSTEM IDENTIFICATION Microlectra bv Hermanus Boerhaavestraat 6 3261 ME Oud Beijerland Netherlands Tel 31 0 186 616290 Fax 31 0 186 610349 www...

Страница 2: ...er No guarantee against misuse Batteries Laumas provides 1 year guarantee from the date of delivery note against material defects or battery manufacturing faults Disposal of Waste Equipment by Users i...

Страница 3: ...EIGHT ZERO SETTING 13 ZERO VALUE MANUAL ENTRY 13 REAL CALIBRATION WITH SAMPLE WEIGHTS 14 CONFIRMATION AND CHANGE OF ACTIVE CHANNELS 15 EQUALIZATION 16 FILTER ON THE WEIGHT 17 ANTI PEAK 17 ZERO PARAMET...

Страница 4: ...35 MENU LOCKING 35 MENU UNLOCKING 35 TEMPORARY MENU UNLOCKING 35 DATA DELETION AND PROGRAM SELECTION 35 KEYPAD OR DISPLAY LOCKING 36 DECLARATION OF CONFORMITY 37 Microlectra bv Hermanus Boerhaavestraa...

Страница 5: ...n solenoid valve and remote control switch coils Avoid inverters in the instrument panel if inevitable use special filters for the inverters and separate them with sheet metal partitions The panel ins...

Страница 6: ...TURE By means of a copper wire with suitable cross section connect the cell upper support plate with the lower support plate then connect all the lower plates to a single earthing system Electrostatic...

Страница 7: ...the positive excitation wire and the negative excitation wire must be equal or similar to the one indicated in the load cell data sheet input resistance Load cell voltage measurement use a digital mu...

Страница 8: ...by ASCII Laumas or ModBus R T U protocol remote display printer Optional integrated Profibus DP DeviceNet CANopen Profinet IO Ethernet IP Ethernet TCP IP Modbus TCP RS232 RS485 SERCOS III PowerLink C...

Страница 9: ...V V MAX CONVERSIONS PER SECOND 600 conversions second DISPLAY RANGE 999999 NO OF DECIMALS DISPLAY INCREMENTS 0 4 x 1 x 2 x 5 x 10 x 20 x 50 x 100 DIGITAL FILTER READINGS PER SECOND 0 006 7 s 5 600 Hz...

Страница 10: ...h several devices it is recommended to activate the 120 ohm termination resistance on the two devices located at the ends of the network as described in the paragraph RS485 SERIAL CONNECTION WIRING DI...

Страница 11: ...V 15 LOAD CELL 5 SIGNAL 36 INPUT COMMON VDC 0 V 16 LOAD CELLS 5 and 6 EXCITATION EX LOAD CELLS SHIELD 37 ANALOG OUTPUT 0 20 or 4 20 mA 17 LOAD CELLS 5 and 6 EXCITATION EX 38 ANALOG OUTPUT 0 10 V 18 LO...

Страница 12: ...t menu item Setting setpoint and hysteresis Confirm or enter in submenu Setting general parameters press immediately followed by Setting preset tare press immediately followed by Load distribution dis...

Страница 13: ...9 MENU MAP Into menus changes are applied right after pressing the ENTER key no further confirmation is required SETPOINT SYSTEM PARAMETERS 3 s...

Страница 14: ...10 3 s Microlectra bv Hermanus Boerhaavestraat 6 3261 ME Oud Beijerland Netherlands Tel 31 0 186 616290 Fax 31 0 186 610349 www microlectra nl info microlectra nl...

Страница 15: ...the indicated weight if necessary see section REAL CALIBRATION WITH SAMPLE WEIGHTS If the instrument HAS NOT BEEN CALIBRATED missing plant system identification tag proceed with calibration If the sy...

Страница 16: ...ible to set a value between 0 50000 and 7 00000 mV V Example of 4 cell system with sensitivity 2 00100 2 00150 2 00200 2 00250 enter 2 00175 calculated as 2 00100 2 00150 2 00200 2 00250 4 The divisio...

Страница 17: ...nent memory Press to display the value of the total weight reset by the instrument given by the sum of all of the previous zero settings DIAGNOSTICS ON ZERO if diagnostics on zero has been enabled the...

Страница 18: ...weight too the system must read zero If this does not happen it means that there is a mechanical problem affecting the system linearity WARNING identify and correct any mechanical problems before repe...

Страница 19: ...ay shows the automatically detected channels press ESC to exit with no change press ENTER to make the current selection permanent and disable automatic detection In case a channel is not working you c...

Страница 20: ...l 2 wait for stability and confirm by pressing ENTER Repeat the operation for each connected load cell If equalization is successfully completed the display shows confirm by pressing ENTER to exit if...

Страница 21: ...enables to stabilise a weight as long as its variations are smaller than the corresponding response time It is necessary to set this filter according to the type of application and to the full scale...

Страница 22: ...on the weight value is lower than the value set in this parameter and does not exceed the value the weight is reset To disable this function set 0 ZERO TRACKING from 1 to 5 default When the weight va...

Страница 23: ...nt parameter see the related section To use is necessary to enable it closing the input see section OUTPUTS AND INPUTS CONFIGURATION DISPLAY COEFFICIENT By setting the coefficient the display is chang...

Страница 24: ...easurement perform one of the following procedures for changing the system calibration The parameter must remain set to 1 0000 THEORETICAL CALIBRATION S CHANGE FOR OTHER UNITS OF MEASURE Set in the pa...

Страница 25: ...ration mode is selected the following options are also active the contact will switch on the basis of gross weight the contact will switch on the basis of net weight If the net function is not active...

Страница 26: ...ing of the units of measure and coefficient otherwise the weight is displayed when the input is closed the data are sent for printing if in the communication protocol of either serial port the paramet...

Страница 27: ...weight is displayed keep pressed to display the gross weight When the key is released the net weight will be displayed again IF A SEMI AUTOMATIC TARE NET IS ENTERED IT IS NOT POSSIBLE TO ACCESS THE EN...

Страница 28: ...his case instead of zero set 5000 kg set the weight value for which you wish to obtain the maximum analog output value it must correspond to the value set in the PLC program default calibration full s...

Страница 29: ...of communication default MODBUS RTU protocol possible addresses from 1 to 99 see Communication protocols manual ASCII bidirectional protocol possible addresses from 1 to 99 see Communication protocol...

Страница 30: ...Hz with minimum baud rate 4800 baud 80 Hz with minimum baud rate 9600 baud 100 Hz with minimum baud rate 19200 baud 200 Hz with minimum baud rate 38400 baud 300 Hz with minimum baud rate 38400 baud d...

Страница 31: ...s necessary to connect the above mentioned resistors DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER Since a two wire RS485 output may be used directly on the RS 232 input of a PC or remot...

Страница 32: ...l Load diagnostics the instrument with stable weight calculates and stores the load percentage on each channel If under normal operation the load percentage error is higher than the value set in param...

Страница 33: ...ponse signal of each load cell expressed in mV with three decimals see section TARE WEIGHT ZERO SETTING EVENTS LOG The instrument can store up to 50 events the oldest records are overwritten it displa...

Страница 34: ...et in this parameter The type of switching is settable see section OUTPUTS AND INPUTS CONFIGURATION from 0 to max full scale default 0 Hysteresis value to be subtracted from the setpoint to obtain con...

Страница 35: ...l calibration after the fifth sample weight value has been entered the value set for the parameter is beyond the permitted values press ESC to quit the setting mode leaving the previous value unchange...

Страница 36: ...S RTU ASCII __O F_ __O L_ __O F_ __O L_ __O F_ aa CR RIP __O F_ __O L_ __O F_ __O L_ __O F_ __O F_ HDRIP N _ERCEL _ER_OL _ER_AD _ER_OF O__SET CONTIN _ERCEL _ER_OL _ER_AD _ER_OF O__SET For RIP remote d...

Страница 37: ...from the weight display press the PRINT key BASIC PRINTOUT TLM8 BASE Addr 01 GROSS 878 kg NET 589 kg TARE 289 kg BASIC PRINTOUT PEAK ENABLED TLM8 BASE Addr 01 GROSS 1204 kg NET 831 kg TARE 373 kg PEA...

Страница 38: ...4 kg CH1 23 5 CH2 24 1 CH3 15 5 CH4 16 7 CH5 9 0 CH6 10 2 CH7 ERR load cell connected but in error CH8 OFF load cell not connected CURRENT AND STORED DISTRIBUTION TLM8 BASE Addr 01 STORED MEMRIP GROSS...

Страница 39: ...to indicate that this menu item is unlocked TEMPORARY MENU UNLOCKING press and simultaneously for 3 seconds it is now possible to enter and modify all menus including those which are locked By return...

Страница 40: ...and the correct procedures for approval indicating mandatory hardware code and serial number see section INSTRUMENT COMMISSIONING By confirming the instrument is restored to default and data is erase...

Страница 41: ...nachstehenden Normen bereinstimmt F D claration de conformit Nous d clarons avec cela responsabilit que le produit auquel se rapporte la pr sente d claration est conforme aux normes cit es ci apr s CZ...

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