ACS310, ACS350, ACS355, ACS550 or ACH550 with MODBUS RTU

Used drive Communication Module: embedded, only ACS350 or ACS355 with FMBA-01:

Question: Are the Emergency stops needed and is the change to Ext1/2 control location needed?

• Emergency stops or change to external control location is NOT needed
  • READ / WRITE variables: status word, actual speed, control word and speed reference and up to 7 more values read from the drive
  • communication profile in drive parameters: ABB Drives classic
  • communication Function Block in AC500 program: ACS3XX_COM_MOD_RTU ACS3XX_COM_MOD_RTU Communication for ACS3XXwrite one bit/ACX550 Drives via MODBUS RTU
  • control Function Block in AC500 program: ACS3XX_DRIVES_CTRL_BASIC ACS3XX_DRIVES_CTRL_BASIC Basic Control of ACS3XX / ACX550 Drives with ABB Drives Profile, Including Scaling of Actual and Reference Values
  • scaling:the scaling is included in the ACS3XX_DRIVES_CTRL_BASIC Function Block
• Emergency stops or change to external control location is needed
  • read/write variables: status word, actual speed, control word and speed reference and up to 7 more values read from the drive:
  • communication profile in drive parameters: ABB Drives classic
  • communication Function Block in AC500 program: ACS3XX_COM_MOD_RTU ACS3XX_COM_MOD_RTU Communication for ACS3XXwrite one bit/ACX550 Drives via MODBUS RTU
  • control Function Block in AC500 program: ACS_DRIVES_CTRL_STANDARD ACS_DRIVES_CTRL_STANDARD Control of ACS Drives with ABB-Drives Profile
  • scaling: ACS_REF_SCALING (optional) ACS_REF_SCALING Scaling for ACS / DCS Reference and Actual Values
• to exchange more than above mentioned values use additionally the following blocks:
  • ACS_MOD_READ_N_PRM ACS_MOD_READ_N_PRM Read N Parameters from an ACS Drive via MODBUS RTU
  • ACS_MOD_WRITE_N_PRM ACS_MOD_WRITE_N_PRM Write N Parameters to an ACS/DCS Drive via MODBUS RTU