ACS550 or ACH550 with MODBUS TCP

Used drive Communication Module: RETA-01

Question: How many values should be exchanged?

• only status word, actual speed, control word and speed reference:
  • communication profile in drive parameters: ABB Drives classic
  • communication Function Block in AC500 program: Use ACS_COM_MOD_TCP ACS_COM_MOD_TCP Communication for ACS / DCS Drives via MODBUS TCP, if PLC firmware is less than V2.4, else use ACS_COM_MOD_TCPx ACS_COM_MOD_TCPx Communication for ACS / DCS Drives via MODBUS TCP
  • 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
• status word, actual value1 (speed), actual value2 (torque), control word, reference1 (speed) and reference value2 (torque):
  • communication profile in drive parameters: ABB Drives classic
  • communication Function Block in AC500 program: Use ACS_COM_MOD_TCP ACS_COM_MOD_TCP Communication for ACS / DCS Drives via MODBUS TCP, if PLC firmware is less than V2.4, else use ACS_COM_MOD_TCPx ACS_COM_MOD_TCPx Communication for ACS / DCS Drives via MODBUS TCP
  • 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