NORD Drivesystems BU2100 - Manual (Page 17)

4 Communication and Protocol
BU 2100 GB-2213 17
Parameter Setting value Meaning Parameter number
SK 180E …
SK 2xxE,
SK 54xE
SK 500E …
SK 535E
Maximum frequency 50.0 50 Hz P105 P105
Actual bus value 1 1 Actual frequency P543[-01] P543
Function Bus setpoint 1 1 Setpoint frequency P546[-01] P546
Order to FI Response from FI
Control word Setpoint 1 Status word Actual value
1
Explanation
- - - - - - 0000h 0000h
- - - - - - xx40h 0000h Switch-on of the mains voltage to the FI
047Eh 0000h xx31h 0000h Sets the FI in the status "Standby"
047Fh 2000h xx37h 2000h Sets the FI to the status "Operation
enabled" with the setpoint 50%.
The FI is enabled, the motor is supplied with current and rotates with a frequency of 25 Hz.
0047Eh 2000h xx31h 0000h Sets the FI to "Standby" status. The
motor runs on its parameterised ramp up
to speed 0 and then the power is
switched off.
The FI is locked again and the motor is without current.
047Fh 1000h xx37h 1000h Sets the FI to the status "Operation
enabled" with the setpoint 25 %.
The FI is enabled, the motor is supplied with current and rotates with a frequency of 12.5 Hz.
Table 6: Example: "Switch FI on and off + setpoint"
4.2 Transfer of Data in the Bus System (I/O connections)
Process data is exchanged between the SK xUx-EIP bus module and the EtherNet/IP Master via I/O
connections. An "Exclusive Owner" connection can be opened, through which the setpoints and actual
values can be exchanged. In addition, two "Listen Only" connections can be opened, through which
the actual values of the FI can be read.
4.2.1 Assembly
Only process data, but no protocol information can be transmitted via the I/O Message Object.
Assignment of the relevant setpoints and actual values is performed via the Assembly Object. The
following table lists several pre-defined configurations (Instances).
Instance Length
(Byte) Meaning* Device class
(SK ...) Data length
100 12 STW + SW1 + SW2 + SW3 + SW4 + SW5 TU3-EIP,
TU4-EIP Fixed
101 12 ZSW + IW1 + IW2 + IW3 + IW4 + IW5 TU3-EIP,
TU4-EIP Fixed
110 50 Bus module outputs + four FIs
Structure for each FI:
STW + SW1 + SW2 + SW3 + SW4 + SW5 TU4-EIP Variable
111 50 Module inputs + four FIs
Structure for each FI:
ZSW + IW1 + IW2 + IW3 + IW4 + IW5 TU4-EIP Variable
* STW = Control word, ZSW = Status word, SW = Setpoint, IW = Actual value
Table 7: Assembly Instance