SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
6
Describes the connection and setting methods for implementing Modbus
communication with external network control equipment, as well as each function
required in this communication. The method of Co-inverter communication is also
described.
6-1 Communication Specifications ...........................................6-1
6-2 RS-485 Port Specifications and Connection......................6-2
6-3 List of Modbus Communication (Modbus-RTU) Parameters....... 6-3
6-4 Modbus Communication (Modbus-RTU) Protocol.............6-4
Message Structure.......................................................................... 6-4
Total Communication Time.............................................................6-6
Normal Response ...........................................................................6-6
Abnormal Response .......................................................................6-7
No Response ..................................................................................6-7
6-5 Explanation of Each Parameter No.....................................6-8
Coil Status Read [01h]....................................................................6-8
Reading the Holding Register Content [03h] ..................................6-9
Writing Into the Coil [05h].............................................................. 6-10
Writing Into the Holding Register [06h] .........................................6-12
Loop-back Test [08h] .................................................................... 6-13
Writing Into Multiple Coils [0Fh] ....................................................6-14
Writing Into Multiple Holding Register [10h]..................................6-16
Multiple Holding Register Read or Write [17h].............................. 6-17
Exceptional Response ..................................................................6-18
6-6 To Save the Change to the Holding Register (Enter Command) ......6-19
Issuing Method for the Enter Command .......................................6-19
EEPROM Write Mode...................................................................6-20
6-7 Co-Inverter Communication...............................................6-22
Co-inverter Communication Setting.............................................. 6-25
6-8 List of Modbus Communication (Modbus-RTU) Data......6-27
Communication Function
To Next Page
Loading...
Need help?
General