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TEMPERATURE TRANSDUCER
Firmware: v.2.04 or higher
•
Input type: Pt100
•
Designed for TRS system
•
Read the user's manual carefully before starting to use the unit or software.
Producer reserves the right to implement changes without prior notice.
2012.09.14
User manual
TRS-02a
Assisting the automation
industry since 1986
TRS-02a_INSSXEN_v.1.04.000
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Summary of Contents for Simex TRS-02a
- Page 1 Assisting the automation industry since 1986 User manual TEMPERATURE TRANSDUCER TRS-02a Firmware: v.2.04 or higher • Input type: Pt100 • Designed for TRS system • Read the user's manual carefully before starting to use the unit or software. Producer reserves the right to implement changes without prior notice.
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Page 2: Table Of Contents
User manual for - TEMPERATURE TRANSDUCER TRS-02a CONTENTS 1. BASIC REQUIREMENTS AND USER SAFETY..................3 2. GENERAL CHARACTERISTICS........................4 3. TECHNICAL DATA............................4 4. DEVICE INSTALLATION..........................5 4.1. UNPACKING............................5 4.2. ASSEMBLY............................5 4.3. CONNECTION METHOD........................6 4.4. MAINTENANCE..........................9 5. PRINCIPLE OF OPERATION........................10 6. THE MODBUS PROTOCOL HANDLING....................10... -
Page 3: Basic Requirements And User Safety
User manual for - TEMPERATURE TRANSDUCER TRS-02a 1. BASIC REQUIREMENTS AND USER SAFETY - The manufacturer is not responsible for any damages caused by inappropriate installation, not maintaining the proper technical condition and using the unit against its destination. - Installation should be conducted by qualified personnel . During installation all available safety requirements should be considered. -
Page 4: General Characteristics
User manual for - TEMPERATURE TRANSDUCER TRS-02a 2. GENERAL CHARACTERISTICS The temperature transducer is designed for multipoint measurement of temperature by means of a standard Pt100 sensor. In particular it is designed for use with bayonet sensors to be used, for example, in smoke-houses. It may be used with any Pt100 sensors. This module features very good compensation of effect of connection cable resistance on the result of temperature measurement. -
Page 5: Device Installation
User manual for - TEMPERATURE TRANSDUCER TRS-02a Detailed informations about installation of TRS system user can find in: “User manual for Temperature and Humidity Recording System” 4. DEVICE INSTALL ATION The unit has been designed and manufactured in a way assuring a high level of user safety and resistance to interference occurring in a typical industrial environment. -
Page 6: Connection Method
User manual for - TEMPERATURE TRANSDUCER TRS-02a 49,5 mm Figure 4.1. Distances between pinholes 4.3. CONNECTION METHOD Caution - Installation should be conducted by qualified personnel . During installation all available safety requirements should be considered. The fitter is responsible for executing the installation according to this manual, local safety and EMC regulations. - Page 7 User manual for - TEMPERATURE TRANSDUCER TRS-02a Connections of power supply voltage and measurement signals are executed using the screw connections inside of the unit’s housing (Figure 4.2 - 4.4). 6-7 mm Figure 4.2. Method of cable insulation replacing and cable terminals...
- Page 8 User manual for - TEMPERATURE TRANSDUCER TRS-02a An example of the transducers application is multipoint monitoring system (Figure 4.5). Control panel (i.e. SPA-99 made by SIMEX) is used as MASTER in MODBUS network, simultaneously it displays readed informations of all measurement points.
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Page 9: Maintenance
User manual for - TEMPERATURE TRANSDUCER TRS-02a 7 8 9 10 n.c. n.c. n.c. Pt100 Pt100 Pt100 Rb, Rc can be different Ra = Rb = Rc Ra, Rb, Rc, Rd can be different Figure 4.6. Connection of sensors: a) 4-wires circuit; b) 3-wires circuit; b) 2-wires circuit;... -
Page 10: Principle Of Operation
User manual for - TEMPERATURE TRANSDUCER TRS-02a 5. PRINCIPLE OF OPERATION TRS-02a module is equipped with IC analog to digital converter of 16 bits resolution. Converted measurement signals are transmitted to the microcontroller where they are computed and filtered according to given parameters. Measurement data can be readed from the module via RS-485 interface by any MASTER controller (i.e. -
Page 11: List Of Registers
User manual for - TEMPERATURE TRANSDUCER TRS-02a 6.1. LIST OF REGISTERS Register Write Range Register description Current temperature measurement value in 0.1 °C -500 ÷ 5500 (U2 code, no decimal point included, e.g. value 350 means 35.0 °C) 0h, 40h, 60h... -
Page 12: Reading Of The Measurement Result
User manual for - TEMPERATURE TRANSDUCER TRS-02a 6.2. READING OF THE MEASUREMENT RESULT Averaged (filtered) result of temperature measurements is available in holding register no. 01h. Reading of the result may be done using MODBUS RTU function 03h. If single... - Page 13 User manual for - TEMPERATURE TRANSDUCER TRS-02a 1. Read of the measurement value, the device address = 01h: ADDR FUNC REG H,L COUNT H,L CRC L,H a) The answer (we assume that input signal is not out of range): ADDR...
- Page 14 User manual for - TEMPERATURE TRANSDUCER TRS-02a The answer (the same as the message): ADDR FUNC REG H,L DATA H,L CRC L,H 4. Read of the registers 1 and 2 in one message (example of reading a number of registries in one frame):...
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Page 15: Forcing Of 0Xff Address
User manual for - TEMPERATURE TRANSDUCER TRS-02a 7. FORCING OF 0 x FF ADDRESS New devices has set to Modbus addresses 0xFE. To enhance system installation process special operation mode has been developed. It allows to force address 0xFF in single module using internal momentary switch mounted on module mainboard (Figure 4.2). - Page 16 SIMEX Sp. z o.o. ul. Wielopole 7 80-556 Gdańsk Poland tel.: (+48 58) 762-07-77 fax: (+48 58) 762-07-70 http://www.simex.pl e-mail: info@simex.pl...
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