Laurel-electronics LT SERIES TRANSMITTERS PULSE INPUTS Manual do Utilizador Página 1

LT SERIES TRANSMITTERS PULSE INPUTS 4-20 MA OUTPUT & RS232 / RS485 I/O USER MANUAL LAUREL Electronics Inc. 3183-G Airw

- - 10 - Click on Counter => Get Setup to retrieve the current setup information from your counter transmitter, then on View =

- - 11 - Click on the Filter tab to set to set up filtering for your readings. Click on the Relay Alarms tab to set up your transmitter’s t

- - 12 - Click on the Communication tab to view the communication parameters that you used to establish default communications wi

- - 13 - ADDITIONAL FEATURES • The Commands pull-down menu allows you to execute certain functions by using your computer mouse. Th

- - 14 - Graph • The Jumpers pull-down menu shows jumper positions for the selected signal conditioner boards and the main board, d

- - 15 - 8. OPENING YOUR TRANSMITTER CASE WHEN TO CHANGE JUMPERS Most users will never have the need to open the transmitter case.

- - 16 - 9. DUAL CHANNEL PULSE OR AC INPUT SIGNAL CONDITIONER BOARD This signal conditioner board is used for the frequency, rate, peri

- - 17 - Function Block Jumper Setting Frequency Response A0 & B0 - b a 1 MHz max 30 kHz max 250 Hz max Bias Resistor A1 & B1 a b 10 k

- - 18 - • Rates A+B, A-B, AxB, A-B, A/B, A/B-1 (Extended counter) can output arithmetic combi-nations of Rates A and B (Item #1), Ra

- - 19 - together and selecting a positive or negative edge to start (Slope A) and the opposite polarity edge to stop (Slope B). If multipl

- - 2 - 1. ORDERING GUIDE Configure a model number in this format: LT60VF1, CBL04 Transmitter Type LT...Pulse input transmitter with 4-20 mA, 0-

- - 20 - 10. V-TO F CONVERTER SIGNAL CONDITIONER BOARD This process receiver signal conditioner board converts 0-1 mA, 4-20 mA or 0-10

- - 21 - 11. QUADRATURE SIGNAL CONDITIONER BOARD This signal conditioner can be used for quadrature position (Basic or Extended main board) o

- - 22 - Phase for Up Count E7 A positive, negative B transition (A leads B) A positive, positive B transition (B leads A) none a Count-by Op

- - 23 - 12. MAIN BOARD JUMPER SETTINGS E1E4E3E2abcaba bcdE6abcd Serial Signal Duplex Jumpers Termination Resistor* Full None E6 a = Transmi

- - 24 - 13. DUAL RELAY OPERATION Dual solid state relays are standard and can operate in a basic alarm mode, in a hysteresis band mode, or

- - 25 - band is often used to minimize relay chatter. A wide hysteresis band can be used for on-off control applications. The hyster

- - 26 - Calibration of the quartz crystal is easily accomplished using Instrument Setup software. Select Calibration from the Main Menu. A

- - 27 - 17. MODBUS PROTOCOL TRANSMITTER COMMUNICATIONS 1.0 GENERAL The Modbus capability conforms to the Modbus over Serial Line

- - 28 - 4.0 COMMUNICATIONS SETUP Parameters selectable via Instrument Setup software, distributed on CD ROM: Serial Protocol ...

- - 29 - FC08: Diagnostics Checks communications between the Master and Slave, and returns the count in the Modbus Slave counters (which are rese

- - 3 - 2. TABLE OF CONTENTS 1. ORDERING GUIDE ...

- - 30 - 6.0 SUPPORTED EXCEPTION RESPONSE CODES Code Name Error Description ---- -------------------- -----------------------------

- - 31 - Modbus ASCII Format Byte Number FC Action 1 2 3 4 5 6 7 8 9 10 11 12 13 03 03 Request Response : : MA MA FC FC RA NB RA DD*

- - 32 - 18. CUSTOM ASCII PROTOCOL TRANSMITTER COMMUNICATIONS 1.0 SERIAL COMMUNICATION FORMAT Mode ... Full Duplex (Separate

- - 33 - Values are transmitted in a continuous string with no intervening spaces. If the 5th digit in is set to 1 using Instrument Setup s

- - 34 - Char # Character Description 1 2 3 4 * 0-V A-Z 0-U Command Identifier. Recognition Character. Device Address. 0 addresses all devices,

- - 35 - Peak value reset *1C3 Remote display reset *1C4 Valley reset *1C9 Tare function *1CA Tare reset *1CB 6.0 RE

- - 36 - General, Reading and Writing Ram Memory Data RAM memory data is read and written as a continuous string of bytes consisting

- - 37 - 19. LT SERIES PULSE INPUT TRANSMITTER SPECIFICATIONS Mechanical Case Dimensions ...

- - 38 - DUAL CHANNEL SIGNAL CONDITIONER Crystal Accuracy at 25ºC...

- - 39 -

- - 4 - 3. PRODUCT OVERVIEW This manual covers LT Series DIN rail transmitters with isolated 4-20 mA and RS232/RS485 outputs, dua

- - 40 - 20. WARRANTY Laurel Electronics Inc. warrants its products against defects in materials or workmanship for a period of one year from t

- - 5 - 4. RECEIVING & UNPACKING YOUR TRANSMITTER Your transmitter was carefully tested and inspected prior to shipment. Should the transmi

- - 6 - 6. TRANSMITTER FIELD WIRING SignalconditionerboardP3 Solidstate relaysP1 PowerinputP6 Signalinput &excitationoutputP2 Serialdat

- - 7 - P6 - SIGNAL INPUT DETAILExcitation return 1+ Excitation 2- Signal input 3+ Signal input 42-Wire Process Transmitter+-Excitati

- - 8 - 7. PROGRAMMING YOUR TRANSMITTER OVERVIEW Our transmitters are easily programmed using a PC with an RS232 port and Instrument Setup (IS

- - 9 - In the Establish Communications screen, select your Com Port and 9600 as the Baud Rate. You will be able to change your protocol and bau