BONFIGLIOLI Vectron Agile VABus/TCP, Руководство по связи, Страница: 45 / 72

10 Example messages VABus/TCP
This chapter describes some examples of telegrams for VABus/TCP.
10.1 Reading parameters
Example 1:
Reading of parameter
Rated speed
372 (0x0174) in dataset2.
Request: Master

frequency inverter
Byte ... 0 1 2 3 4 5
TCP/IP
Header
Header NoB SYS DS P.-No.
> 40
Bytes
7 6 5…0 LSB MSB
0 0 0 04 00 02 74 01
Response: Frequency inverter

Master
Byte ... 0 1 2 3 4 5 6 7
TCP/IP
Header
Header NoB SYS DS P.-No. data
> 40
Bytes
7 6 5…0 LSB MSB uint/int
data
LSB MSB
0 0 0 06 00 02 74 01 6E 05
The sent hexadecimal value is 0x056E = Decimal 1390. Parameter
Rated speed
372 has no decimal
places. Thus, the rated speed is 1390 min
-1
.
Example 2:
Reading of parameter
Fixed frequency 2
481 (0x01E1) in dataset 1.
Request: Master

frequency inverter
Byte ... 0 1 2 3 4 5
TCP/IP
Header
Header NoB SYS DS P.-No.
> 40
Bytes
7 6 5…0 LSB MSB
0 0 0 04 00 01 E1 01
Response: Frequency inverter

Master
Byte ... 0 1 2 3 4 5 6 7 8 9
TCP/IP
Header
Header NoB SYS DS P.-No. data
> 40
Bytes
7 6 5…0 LSB MSB long data
LSB MSB
0 0 0 08 00 01 E1 01 E8 03 00 00
The sent hexadecimal value is 0x03E8 = Decimal 1000. Parameter
Fixed frequency 2
481 has two
decimal places. Thus, the frequency is 10.00 Hz.
12/13
Agile
VABus/TCP 45