Actualization Rate; Other Useful Documentation; Revision - ABB ACS310 Quick Start Manual

Quickstart Guide
ABB PLC and drives integration using Modbus RTU
Actualization rate
Be aware that on a Modbus RTU line only one Modbus job is performed at a time. That means that the update
rate of the variables increases with the number of active Modbus blocks, such as ACS_COM_MOD_RTU,
ACS_MOD_READ_N_PRM of ACS_MOD_WRITE_N_PRM.
The ACS_COM_MOD_RTU function block automatically reads the actual data all the time and executes a write job
each time the Control Word or the reference values (speed or torque) have changed.
Other useful documentation

CODESYS Help (Contents → Target system → AC500 / S500 → ACS Drives Libraries)

User's manual Modbus Adapter Module FMBA‐01

User's manual Modbus Adapter Module RMBA‐01

Modbus Protocol Manual RS‐485 Adapter Module FSCA‐01

User's manual ACS355 drives

ACS850 Firmware Manual Standard Control Program

ACQ810 Firmware Manual Standard Pump Control Program

Firmware manual ACS880 primary control program

ACSM1 Firmware Manual Speed and Torque Control

ACSM1 Firmware Manual Motion Control

User's Manual ACS550‐01 Drives

Firmware Manual ACS800 Standard Control Program
Revision
Rev Page (P)
Chap (C)
A -
B
Modbus RTU
Description
New document
Update (C) Drive configuration
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PLC and drives integration
Date
2013-02-01
2013-03-22