Communications
vacon • 36
24-hour s358 (0)40 837 1150 • Email: [email protected]
6
Example 2:
Read the Process Data 42103…42104 with command 4 (Read Input Registers).
Command Master - Slave:
Message frame:
The reply to the Read Input Registers message contains the values of the read registers.
Answer Slave - Master:
Reply frame:
ADDRESS
01 hex Slave address 1 hex (= 1)
FUNCTION
04 hex Function 4 hex (= 4)
DATA
Starting address HI 08 hex
Starting address LO 36 hex
No. of registers HI
00 hex Number of registers 0002 hex (= 2)
No. of registers LO
02 hex
ERROR
CRC HI
93 hex CRC field 93A5 hex (= 37797)
CHECK
CRC LO
A5 hex
01 04
08
36 00
02
93 A5
ADDRESS
01 hex Slave address 1 hex (= 1)
FUNCTION
04 hex Function 4 hex (= 4)
DATA
Byte count
04 hex Byte count 4 hex (= 4)
Data HI
13 hex Speed reference = 1388 hex (=5000 => 50.00%)
Data LO
88 hex
Data HI
09 hex Output Frequency = 09C4 hex (=2500 =>25.00Hz)
Data LO
C4 hex
ERROR
CRC HI
78 hexCRC field 78E9 hex (=30953)
CHECK
CRC LO
E9 hex
01 04
04
13 88
09 C4 78 E9
Содержание 100 INDUSTRIAL
Страница 1: ......
Страница 3: ...vacon 1 Tel 358 0 201 2121 Fax 358 0 201 212 205...
Страница 7: ...1 vacon 5 Safety Tel 358 0 201 2121 Fax 358 0 201 212 205...
Страница 11: ...3 vacon 9 Modbus technical data Tel 358 0 201 2121 Fax 358 0 201 212 205...
Страница 27: ...5 vacon 25 Programming Tel 358 0 201 2121 Fax 358 0 201 212 205...
Страница 43: ...7 vacon 41 Fault tracing Tel 358 0 201 2121 Fax 358 0 201 212 205...
Страница 45: ...8 vacon 43 Quick setup Tel 358 0 201 2121 Fax 358 0 201 212 205...
Страница 47: ......