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MODBUS communication
11.5 Password entry by means of MODBUS
3KC ATC6300 transfer control device
156
Manual, 03/2018, L1V30535632002A-01
11.5
Password entry by means of MODBUS
Note
Password
•
If the password is entered incorrectly by means of MODBUS three times in succession,
access to the device is blocked for two minutes.
•
The device is supplied from the factory with a remote password (3000) for
communication.
Entering the password using MODBUS
In order to enter the password, it must be sent with function 06 to the address 0x1FF6.
Example:
Transmission of the password (3000) by the master (if the device is set to address 01):
01
06
1F
F5
0B
B8
99
6E
Response of the slave if the password is correct:
01
06
1F
F5
0B
B8
99
6E
When the password has been entered, communication with the device can begin.
If an attempt is made to communicate with the device without entering the password, an
error message appears.
Example:
Query by the master:
01
10
4F
FF
00
01
02
00
01
CD
5B
Response of the slave:
01
90
04
4D
C3
Содержание SENTRON ATC6300
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