MX drives are totally different than Altivar drives. See modbus manual for MX eco drives in the attachment. Page 6 shows all important information and page 16 example with function code 17. If you want only to read parameters from MX eco, (not sending commands), then use function code 3 - read holding registers
The modus request will look: (each byte separated by "-")
Slave address - 16#03 - 16#00 - 16#FA - 16#00 - 16#02 - CRCLow - CRCHi
16#00FA is the address of the status word ZTW and 16#0002 means that 2 words will be read:
ZTW (status word) from address 16#00FA
Fact (actual frequency) from address 16#00FB
If you need to read more data, use another request.
Full request and response with function code 3 shown on page 32
The modus request will look: (each byte separated by "-")
Slave address - 16#03 - 16#00 - 16#FA - 16#00 - 16#02 - CRCLow - CRCHi
16#00FA is the address of the status word ZTW and 16#0002 means that 2 words will be read:
ZTW (status word) from address 16#00FA
Fact (actual frequency) from address 16#00FB
If you need to read more data, use another request.
Full request and response with function code 3 shown on page 32
Udgivet til: Schneider Electric Danmark
Brug for hjælp?
Produktvælger
Find hurtigt og nemt de rette produkter og det rette tilbehør til dine anvendelser.
Få et tilbud
Start din salgsforespørgsel online, så vil du blive kontaktet af en ekspert.
Find forhandler
Find den nærmeste Schneider Electric-distributør.
Hjælpecenter
Find supportressourcer til alle dine behov på ét sted.
