Bacnet Mstp - Invertek Drives Eco Optidrive Series User Manual

Register Upper Byte
Number
22 Pre Ramp Speed Reference
23 DC Link Voltage
24 Drive temperature
30 kWh Meter (User Resettable)
31 MWh Meter (User Resettable)
32 kWh Meter (Non Resettable)
33 MWh Meter (Non Resettable)
34 Running Time – Hours
35 Running Time – Min & Sec
11.2.3. Modbus Parameter Access
All User Adjustable parameters (Groups 1 to 5) are accessible by Modbus, except those that would directly affect the Modbus
communications, e.g.

P5-01 Drive Fieldbus Address

P5-03 Modbus RTU Baud Rate

P5-04 Modbus RTU Data Format
All parameter values can be read from the drive and written to, depending on the operating mode of the drive – some parameters cannot be
changed whilst the drive is enabled for example.
When accessing a drive parameter via Modbus, the Register number for the parameter is the same as the parameter number,
E.g. Parameter P1-01 = Modbus Register 101.
Modbus RTU supports sixteen bit integer values, hence where a decimal point is used in the drive parameter, the register value will be
multiplied by a factor of ten,
E.g. Read Value of P1-01 = 500, therefore this is 50.0Hz.
For further details on communicating with Optidrive using Modbus RTU, please refer to your local Invertek Sales Partner.

11.3. BACnet MSTP

11.3.1. Overview
Optidrive Eco provides an interface for direct connection to a BACNet MS/TP network. Connection is made via the RJ45 connection port, see
section 11.1 for terminal assignment and section 11.1.1 for wiring requirements
11.3.2. Interface Format
Protocol : BACnet MS/TP
Physical signal : RS485,
Interface : RJ45
Baudrate : 9600bps, 19200bps, 38400bps, 76800bps
Data format : 8N1, 8N2, 8E1, 8O1,
11.3.3. BACNet MS/TP Parameters
The following parameters are used to configure the drive when connecting to a BACNet MS/TP network.
Par. Parameter Name
P1-12 Control Source
P5-01 Drive Address
P5-03 Baudrate
P5-04 Data Format
P5-07 Fieldbus Ramp Control
P5-09 BACnet Device Instance ID Low
P5-10 BACnet Device Instance ID High
P5-11 Max Master
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Optidrive Eco User Guide Revision 2.01
Lower Byte Read Notes
Write
R Internal drive frequency set-point
R Measured DC Link Voltage VDC (P0-20)
R Measured Heatsink Temperature in °C (P0-21)
R User resettable energy meter kWh (P0-26)
R User resettable energy meter MWh (P0-27)
R Non resettable energy meter kWh (P0-26)
R Non resettable energy meter MWh (P0-27)
R Total running time (Hours) (P0-31)
R Total Running Time (Minutes & Seconds) (P0-31)
half duplex
Description
Set this parameter to 6 to activate BACnet MS/TP operation
This parameter is used to set the MAC ID of the drive on the MS/TP network. Each drive
on a given network should have a unique value. By default, all drives are set to MAC ID 1.
This parameter is used to set up communication baudrate. It should be set to match the
chosen baudrate of the BACnet system. Auto baudrate is not supported
Use this parameter to set RS485 communication data format. Possible settings are as
follows :-
n-1 : No parity, one stop bit (default setting)
n-2 : No parity, two stop bits
O-1 : Odd parity, one stop bit
E-1 : Even parity, one stop bit
The setting must match the requirement of the BACNet network.
This parameter determines whether the acceleration and deceleration time of the drive is
controlled by the drive internal parameters (P1-03 : Acceleration Time, P1-04 :
Deceleration Time), or controlled directly from the BACNet MSTP network. In most cases,
using the drive internal parameters is the best solution.
P5-09 and P5-10 are used to setup drive device instance ID value.
Instance ID = (P5-10 * 65536) + P5-09. The allowed setting range is Range from 0 ~
4194304.
Default value is set to 1.
Set BACnet MS/TP max master property, range from 1 ~ 127. Default set to 127.
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