Thermo Scientific 48i Instruction Manual page 17

Appendix C
Appendix D
Thermo Fisher Scientific
MODBUS Protocol ............................................................................................ C-1
Serial Communication Parameters ..................................................... C-1
TCP Communication Parameters ...................................................... C-2
Application Data Unit Definition ...................................................... C-2
Slave Address ................................................................................... C-2
MBAP Header ................................................................................ C-2
Function Code ................................................................................ C-3
Data ................................................................................................ C-3
Error Check .................................................................................... C-3
Function Codes .................................................................................. C-3
(0x01/0x02) Read Coils / Read Inputs ............................................ C-3
(0x03/0x04) Read Holding Registers / Read Input Registers ........... C-5
(0x05) Force (Write) Single Coil ..................................................... C-7
MODBUS Parameters Supported ...................................................... C-8
Geysitech (Bayern-Hessen) Protocol .......................................................... D-1
Serial Communication Parameters ..................................................... D-1
TCP Communication Parameters ...................................................... D-2
Instrument Address ............................................................................ D-2
Abbreviations Used ............................................................................ D-2
Basic Command Structure ................................................................. D-2
Block Checksum <BCC> ................................................................... D-3
Geysitech Commands ........................................................................ D-3
Instrument Control Command (ST) ............................................... D-3
Data Sampling/Data Query Command (DA) .................................. D-4
Measurements reported in response to DA command ..................... D-6
Single Range Mode ...................................................................... D-6
Dual/Auto Range Mode ............................................................... D-6
Operating and Error Status ............................................................. D-6
Model 48i Trace Level-Enhanced Instruction Manual
Contents
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