Communications D - 8
Modbus Function Code Details
Reading/Holding Register Contents (03H)
Read the contents of the storage register only for specified quantities. The addresses must be consecutive, starting from a
specified address. The data content of the storage register are separated into higher 8 bits and lower 8 bits.
The following table shows message examples when reading status signals, error details, data link status, and frequency
references from the slave 2 Drive.
Fig. D.6 Function Code 03H Message Example
Write In Single Holding Register (06H)
Fig. D.7 Function Code 06H Message Example
Command Message
Response Message
(During Normal Operation)
Response Message
(During Error)
Slave Address
02H
Slave Address
02H
Slave Address
02H
Function Code
03H
Function Code
03H
Function Code
83H
Start
Address
Higher
00H
Data quantity
08H
Error code
03H
Lower
20H
1st storage
register
Higher
00H
CRC-16
Higher
F1H
Quantity
Higher
00H
Lower
65H
Lower
31H
Lower
04H
Next storage
register
Higher
00H
CRC-16
Higher
45H
Lower
00H
Lower
F0H
Next storage
register
Higher
00H
Lower
00H
Next storage
register
Higher
01H
Lower
F4H
CRC-16
Higher
AFH
Lower
82H
Command Message
Response Message
(During Normal Operation)
Response Message
(During Error)
Slave Address
01H
Slave Address
01H
Slave Address
01H
Function Code
06H
Function Code
06H
80H + Function Code
86H
Register
Address
Upper
00H
Register
Address
Upper
00H
Error code
21H
Lower
01H
Lower
01H
CRC-16
Upper
82H
Setting
Data
Upper
00H
Setting
Data
Upper
00H
Lower
78H
Lower
03H
Lower
03H
CRC-16
Upper
98H
CRC-16
Upper
98H
Lower
0BH
Lower
0BH
Summary of Contents for E7LBA002
Page 1: ...E7L Drive Bypass Technical Manual Model E7L Document Number TM E7L 01 ...
Page 8: ...Introduction vi Notes ...
Page 12: ...Table of Contents x Notes ...
Page 54: ...Electrical Installation 2 22 Wiring Diagram ...
Page 55: ...Electrical Installation 2 23 ...
Page 87: ...Start Up and Operation 4 9 Notes ...
Page 202: ...Diagnostic Troubleshooting 6 30 Notes ...
Page 248: ...Capacity Related Parameters B 6 Notes ...
Page 279: ...Communications D 27 Note ...
Page 280: ...Communications D 28 ...
Page 292: ...Spare Parts F 6 ...
Page 304: ...Index 12 ...
Page 305: ......