Emerson unidrive m200 - Serial Address; Serial Mode; Serial Baud Rate

Parameter 11.023 Serial Address
Short description Defines the serial address of the drive
Mode Open‑loop
Minimum 1 Maximum 247
Default 1 Units
Type 8 Bit User Save Update Rate Read on serial communications reset
Display Format Standard Decimal Places 0
Coding RW, BU
SerialAddress (11.023) defines the node address for the serial comms interface in the range from 1 to 247.
SerialAddress (11.023) to SilentPeriod (11.027) can be used to change the configuration of the drive RS485 serial interface if present on the AI
adapter.
Changing the parameters does not immediately change the serial communications settings. See ResetSerialCommunications (11.020) for more
details.
Parameter 11.024 Serial Mode
Short description Defines the serial mode of the drive
Mode Open‑loop
Minimum 0 Maximum 9
Default 0 Units
Type 8 Bit User Save Update Rate Read on serial communications reset
Display Format Standard Decimal Places 0
Coding RW, TE
Value Text
0 8.2NP
1 8.1NP
2 8.1EP
3 8.1OP
4 8.2NP E
5 8.1NP E
6 8.1EP E
7 8.1OP E
8 7.1EP
9 7.1OP
The core drive always uses the Modbus rtu protocol and is always a slave. SerialMode (11.024) defines the data format used by the serial comms
interface. The bits in the value of SerialMode (11.024) define the data format as follows. Bit 3 should always be 0 as 8 data bits are required for
Modbus rtu.
Bits 3 2
Format
Number of data bits
0 = 8 bits
1 = 7 bits
Register mode
0 = Standard
1 = Modified
Bit 2 selects either standard or modified register mode. The menu and parameter numbers are derived for each mode as given in the table below.
Standard mode is compatible with Commander SK. Modified mode is provided to allow parameter numbers up to 255 to be addressed. If any menus
contain more than 99 parameters, then these parameters cannot be accessed via Standard Modbus rtu.
Register mode Register address
Standard (mm x 100) + ppp - 1 where mm ≤ 162 and ppp ≤ 99
Modified (mm x 256) + ppp - 1 where mm ≤ 63 and ppp ≤ 255
Changing the parameters does not immediately change the serial communications settings. See ResetSerialCommunications (11.020) for more
details.
Parameter 11.025 Serial Baud Rate
Short description Defines the serial baud rate of the drive
Mode Open‑loop
Minimum 1 Maximum 10
Default 6 Units Baud
Type 8 Bit User Save Update Rate Read on serial communications reset
Display Format Standard Decimal Places 0
Coding RW, TE
174
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10