132 ACS 400 User’s Manual
Activating Modbus Protocol
As a factory setting, Channel 1 is not operational. To activate standard Modbus protocol for
Channel 1, set parameter 5005
PROTOCOL SEL to 2 (STD MODBUS).
After this single modification, the ACS 400 is ready to communicate via Channel 1 using the default
communication settings (given in Table 13), making parameter read and write possible.
The following sections describe how to configure the ACS 400 for more sophisticated
communication and control.
Table 13 Default communication settings of Channel 1.
Note! Protocol must be reactivated after the communication settings are changed.
Station number
Communication
speed
Parity bit Stop bits
Number of
data bits
1 9600 bps none two 8
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