31
Installation
Modbus Communications
The drive’s serial communication protocol is Modbus RTU slave with a 32 bit data extension.
The Modbus protocol is available on most operator interface panels and PLC’s.
Control Techniques’ Motion Interface panels are supplied with a Modbus master
communications driver.
Multi-Drop Communications
The RS-485 option (pins 4 and 9) is provided for multi-drop configurations of up to 32 drives.
Control Techniques provides a special multi-drop serial cable which allows you to easily
connect two or more drives.
Figure 31: Multi-Drop Wiring Diagram
Serial Communications Specifications
Max baud rate 19.2k
Start bit 1
Stop bit 2
Parity none
Data 8