Table Of Contents - Siemens RS-485 User Manual

Table of Contents

Master-Slave Principle1
Application Examples1
Transmission Mode (Rtu)2
Device Address2
Data Format2
Query2
Communication Sequence3
Process3
Example3
Data Query Sequence4
Time Sequence4
Communication During the Slave's Internal Handling Time4
Communication During the Slave's Response Time4
Structure Of The Data Blocks5
Data Structure5
Fault Handling5
Reply In The Event Of Fault5
Checksum (Crc16)6
Calculation6
Reading N Words7
Data Query7
Writing 1 Word7
Reply8
Data Type "Char"8
Data Type "Float"8
Address Tables9
Process Data9
Parameter Level9
Configuration Level9
Device Data10
Remote Operation10
Device State11
Description Of Operating Modes12
Ram Parameter For Remote Operation12
Operating Mode "Local"13
Operating Mode "REMOTE SETPOINT"13
Operating Mode "FULLY REMOTE"13
Mudulating Burner14
Modulating Controller14
Floating Step Controller14