LSIS LSLV0055H100-4COFN - Exception Code

369
RS-485 Communication Features
Slave Station ID
Func. Code
Except. Code
CRC(Lo)
CRC(Hi)
1 byte
1 byte
1 byte
1 byte
1 byte
* Func. Code of the error response is [Request Func. Code] + 0x80.
Exception Code
Code
01: ILLEGAL FUNCTION
02: ILLEGAL DATA ADDRESS
03: ILLEGAL DATA VALUE
06: SLAVE DEVICE BUSY
14: Write-Protection
Example of Modbus-RTU Communication In Use
When the Acc time (Communication address 0x1103) is changed to 5.0 sec and the Dec
time
(Communication address 0x1104) is changed to 10.0 sec.
Frame Transmission from Master to Slave
Item
Station
ID
Function
Starting
Address
# of
Registe
r
Byte
Count
Data 1
Data 2
CRC
Hex
0x01
0x10
0x1102
0x0002
0x04
0x0032
0x0064
0x1202
Des
cript
ion
COM-
01
Int485
St ID
Preset
Multiple
Register
Start
Address-
1
(0x1103-
1)
-
-
50
(ACC time
5.0 sec)
100
(DEC time
10.0 sec)
-
Frame Transmission from Slave to Master
Item
Staition Id
Function
Starting Address
# of Register
CRC
Hex
0x01
0x10
0x1102
0x0002
0xE534
Descriptio
n
COM-01 Int485
St ID
Preset
Multiple
Starting Address-1
(0x1103-1)
-
-