Nitto TGF450 Series, Руководство пользователя

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User’s Manual
Rev1.0
Date:15/07/2015 User’s Manual
4 / 47
5.2 SETTING LIST ............................................................................................................................ 22
CHART 5.1 CODE SETTING ADDRESS ............................................................................................... 22
CHART 5.2 DIGITS SETTINGADDRESS .............................................................................................. 25
5.3 EXAMPLE OF SETTING .............................................................................................................. 26
5.4 PASSWORD SETTING INSTRUCTION .......................................................................................... 26
6 INSTRUCTION OF RS485 MODBUS COMMUNICATION ................................................................. 27
6.1 INTERFACE REGULATION .......................................................................................................... 27
6.2 COMMENDS ............................................................................................................................ 29
6.3 CALCULATION OF CRC PARITY CODE. ........................................................................................ 31
6.4 THE FLOAT DATE FORMAT OF THE INSTRUMENT ....................................................................... 31
6.5 THE SEQUENCE OF THE FLOAT DATE BYTES OF INSTRUMENT ..................................................... 32
6.6 MODBUS ERROR REPONSE ....................................................................................................... 32
6.7 EXAMPLES OF COMMUNICATION ............................................................................................. 33
7 INTRODUCTION OF HART COMMUNICATION PROTOCOL ............................................................. 33
7.1 HART COMMANDS ................................................................................................................... 33
7.1.1 COMMAND 0:READ TRANSMITTER UNIQUE IDENTIFIER ........................................................ 34
7.1.2 COMMAND 1: READ PRIMARY VARIABLE VALUE (PV) ............................................................. 34
7.1.3 COMMAND 2:READ PRIMARY VARIABLE’S CURRENT AND PERCENTAGE VALUE ...................... 34
7.1.4 COMMAND 3: READ PRIMARY VARIABLE CURRENT AND DYNAMIC VARIABLES ...................... 35
7.1.5 COMMAND 6: WRITE POLLING ADDRESS ............................................................................... 35
7.1.6 COMMAND 11: READ UNIQUE IDENTIFIER ASSOCIATED WITH TAG......................................... 36
7.1.7 COMMAND 12:READ MESSAGE ............................................................................................. 36
7.1.8 COMMAND 13: READ TAG, DESCRIPTOR, DATE ...................................................................... 36
7.1.9 COMMAND 14: READ PRIMARY VARIABLE SENSOR INFORMATION: DEVICE SERIAL NUMBER
AND LIMITS ................................................................................................................................... 37
7.1.10 COMMAND 15: READ PRIMARY VARIABLE OUTPUT INFORMATION ...................................... 37
7.1.11 COMMAND 16: READ FINAL ASSEMBLY NUMBER ................................................................. 37
7.1.12 COMMAND 17: WRITE MESSAGE ......................................................................................... 38
7.1.13 COMMAND 18: WRITE TAG, DESCRIPTOR, DATE ................................................................... 38
7.1.14 COMMAND 19: WRITE FINAL ASSEMBLY NUMBER ............................................................... 38
7.1.15 COMMAND 34: WRITE PRIMARY VARIABLE DAMPING VALUE .............................................. 39