Thermo Scientific 49i Instruction Manual page 13

Thermo Fisher Scientific
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 RegistersC-5
(0x05) Force (Write) Single Coil......................................... C-7
MODBUS Commands Supported......................................... C-8
Appendix D 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 for 49i and 49i PS.......................................D-7
Operating and Error Status .................................................D-7
Contents
Model 49i Instruction Manual xiii