TRANSDUCER T4311, T4411
Programmable temperature transducer for RTD Pt1000 sensor with serial
output RS232 and RS485
Instruction manual
Страница 1: ...TRANSDUCER T4311 T4411 Programmable temperature transducer for RTD Pt1000 sensor with serial output RS232 and RS485 Instruction manual...
Страница 2: ...le Registers 10 Exception Responses 13 Exception codes 13 Modbus CRC 13 A procedure for generating a CRC is 13 Modbus registers of the transducer 14 Example of communication 14 Reading of temperature...
Страница 3: ...ion of the transducer Transducer is designed for wall mounting There are two mounting holes at the sides of the case Interconnection terminals are accessible after unscrewing four screws and removing...
Страница 4: ...C T43 4 11 02 The cable should not be led in parallel along power cabling Safety distance is up to 0 5 m otherwise undesirable induction of interference signals can appear Dimensions T4311 RS232 T4411...
Страница 5: ...IE SNC T43 4 11 02 5 Typical application wiring connection of terminals T4311 power from communication port T4311 power from external voltage source T4411 RS485...
Страница 6: ...s Operating temperature range 30 to 70 C with switched OFF display up to 80 C Operating relative humidity range 0 to 100 RH Outer influence in accordance with EN 33 2000 3 normal environment with thos...
Страница 7: ...COM1 and press OK In following window COM1 Features enter to field Bits per second 9600 Data bits 8 Parity None Number of stop bits 1 Flow control None Continue by pressing OK Select item File Featur...
Страница 8: ...communication to default value from manufacturer Modbus address 01h 9600 Bd 9 End of setting All changes in setting are continuously automatically stored If needed close transducer again with cover D...
Страница 9: ...ion speed is enabled Jumper closed writing to transducer memory is enabled by means of function 16 0x10 Setting of several 16 bit registers Write Multiple Registers Jumper closed and pressed button fo...
Страница 10: ...tting of transducer address and communication speed is possible to perform by writing to transducer registers Attention During write to transducer registers it is not enabled to write any number of re...
Страница 11: ...is sum it enables to check correct reading of the area 3 Modify content corresponding to addresses 0x2001 and 0x2002 in master device as required Setting of other values should not be changed 4 Calcul...
Страница 12: ...12 ED BF 77 D5 4F 10 77 D8 FF FF FF FF 40 DE 77 D3 2E F7 78 0C 06 5C 00 01 00 00 00 00 F3 DC 00 12 42 9F 52 3A 00 9F new address of the transducer original address was 00 01 00 24 new code of corresp...
Страница 13: ...code ad2 Data field Into exception response transducer returns exception code in data field Event causing exception is determined this way Exception codes 0x01 Invalid function Function code in query...
Страница 14: ...Write Multiple Registers In case there is a need for reading of measured values from transducer with higher resolution than one decimal measured values in transducer are stored also in Float format wh...
Страница 15: ...ransducer always communicates with following parameters without regardless of setting stored in transducer communication speed 9600 Bd no check sum transducer address 00h If jumper during switching ON...
Страница 16: ...mediately after jumper is opened If address is changing o and jumper is closed transducer responds with address 00h again and newly set address will be activated after jumper is opened o and jumper is...
Страница 17: ...etting of communication speed and CRC must not change setting of communication speed and CRC is not possible to change without closed jumper Command 23242B0600 cr Response 24 cr Example 2 Reading of t...
Страница 18: ...rument to fix Error 1 Measured value is over upper limit of allowed full scale range There is a reading Err1 on LCD display Value read from the transmitter is 999 9 This state appears in case of Measu...
Страница 19: ...ied temperature probe model Resolution 0 1 C Accuracy without probe 0 2 C from 100 to 100 C 0 2 from reading over above range Operating temperature range transducer 30 to 80 C external probe depends o...
Страница 20: ...ory for connection of transmitter transmitters with RS485 interface to the PC via serial port RS232 Connect connector marked RS232 directly to the PC connect power to connector marked RS485 Power volt...
