Some modbus blocks allow the 4xxxx to be omitted since the only part sent (using modbus protocol) is the offset. Hi guys, Im trying to establish a rtu modbus connection between a PLC from Schneider and a sinamics v20 inverter. I ve done all the settings modbus related from the documentation but I can't read or write any values.
Combining SIMATIC PLC with SINAMICS V20 SIMATIC Panel SIMATIC PLC SINAMICS V20 Ethernet/PROFINET USS MODBUS RTU Highlights Saving time and minimizing errors. Easy system configuration with harmonized PLC libraries and predefined macros in the inverter. One cable to connect SINAMICS V20 with USS or MODBUS RTU. Integrated communication. Data sheet for SINAMICS V20 MLFB-Ordering data Figure similar Mechanical data 145.5 mm ( 5.73 in ) Degree of protection IP20 / UL open type 90.0 mm ( 3.54 in ) Height Net weight 0.90 kg ( 1.98 lb ) Depth Size Width 150.0 mm ( 5.91 in ) FSA Unshielded 50 m (164 ft) Max. Motor cable length Connections Shielded 10 m (33 ft). Data sheet for SINAMICS V20 MLFB-Ordering data Figure similar Mechanical data 127.8 mm ( 5.03 in ) Degree of protection IP20 68.0 mm ( 2.68 in ) Height Net weight 0.80 kg ( 1.76 lb ) Depth Size Width 142.0 mm ( 5.59 in ) FSAB Unshielded 50 m (164 ft) Max. Motor cable length Connections Shielded 25 m (82 ft) Mounting position Wall mounting. This is my first post on this forum and first application on modbus rtu, so please by patient. I have PLC s7-1200 and inverter sinamics v20. I can change value of inverter parameteres or read some value, but I don't know which commands shall I send from mapping table to run motor. Thank you for any response.
Hello everyone,
I'm trying to use an arduino Duamelinove to comunicate with a Sinamics V20 inverter via RS485. I have a shield to convert the RS232 from the arduino to the RS485 from the inverter. I also have a RS485/USB adapter to monitor the communication from a computer.
I've loaded the SimpleModbusMaster library example on the arduino, and I'm getting transmission errors on the computer monitor (values different from what was transmited). The inverter receives the signal, but it returns a 'parity error'.
I also tried communicating the inverter with the computer, without the arduino, using a Modbus Master demo and, this time, it returns a 'character structure error'.
Has anyone ever tryied to do something similiar before? I'm not sure if this is even possible as everything I find online mention only communication between Siemens Inverters with Siemens PLCs.
Any thoughts would be appreciated.
Hello everyone,
I'm trying to use an arduino Duamelinove to comunicate with a Sinamics V20 inverter via RS485. I have a shield to convert the RS232 from the arduino to the RS485 from the inverter. I also have a RS485/USB adapter to monitor the communication from a computer.
I've loaded the SimpleModbusMaster library example on the arduino, and I'm getting transmission errors on the computer monitor (values different from what was transmited). The inverter receives the signal, but it returns a 'parity error'.
I also tried communicating the inverter with the computer, without the arduino, using a Modbus Master demo and, this time, it returns a 'character structure error'.
Sinamics V20 Modbus Register Code
Has anyone ever tryied to do something similiar before? I'm not sure if this is even possible as everything I find online mention only communication between Siemens Inverters with Siemens PLCs.
Sinamics V20 Modbus Register Code
Any thoughts would be appreciated.