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2020
EVO/
™ECM-Modbus RTU
Series 2
Page 17
Application Guide
©2020 All Rights Reserved
Evolution Controls Inc.
San Diego, CA USA
Register 17 - Unit Address
Unit Address
The Modbus RTU Master uses the unit address when communicating with a specific EVO/ECM-
Modbus RTU. Each RTU connected on the same trunk must have a unique unit address in the
range of 1 to 199.
The Modbus Master should
NEVER
write to this register during normal operation!
Only write this
register using the Modbus Configuration software.
See the configuration section of this manual
for more information.
Register 18 - Baud Rate
Baud Rate
The EVO/ECM-Modbus RTU can be configured to one of six different baud rates.
The Modbus Master should
NEVER
write to this register during normal operation!
Only write this
register using the Modbus Configuration software.
See the configuration section of this manual
for more information.
0=1.2 kb, 1=2.4 kb, 2 = 4.8 kb, 3 = 9.6 kb, 4 = 19.2kb, 5 = 38.4kb
Register 19 - Motor 1 Low RPM Limit
Register 20 - Motor 2 Low RPM Limit
Register 21 - Motor 3 Low RPM Limit
When Motor 1 RPM drops below this limit, and the motor has been commanded on for at
least 20 seconds, the corresponding alarm flag (Register 1) is set. The flag is cleared
when the RPM exceeds this limit by 50 RPM or 100 RPM depending on the hysteresis
selection bit (Coil 29) in Register 14.
…See Register 19
…See Register 19
