Delta DTB Series - RS-485 Communication Modes and Mounting; Communication Modes, Settings, and Installation Procedure

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ASCII Mode:
Read command Read command response Write command Write command response
STX
’ ： ’ ’ ： ’
STX
’ ： ’ ’ ： ’
STX
’ ： ’ ’ ： ’
STX
’ ： ’ ’ ： ’
ADR 1 ‘0’ ‘0’ ADR 1 ‘0’ ‘0’ ADR 1 ‘0’ ‘0’ ADR 1 ‘0’ ‘0’
ADR 0 ‘1’ ‘1’ ADR 0 ‘1’ ‘1’ ADR 0 ‘1’ ‘1’ ADR 0 ‘1’ ‘1’
CMD 1 ‘0’ ‘0’ CMD 1 ‘0’ ‘0’ CMD 1 ‘0’ ‘0’ CMD 1 ‘0’ ‘0’
CMD 0 ‘3’ ‘2’ CMD 0 ‘3’ ‘2’ CMD 0 ‘6’ ‘5’ CMD 0 ‘6’ ‘5’
Starting data
address
‘1’ ‘0’ Number of data
(count by byte)
‘0’ ‘0’
Starting data
address
‘1’ ‘0’
Starting data
address
‘1’ ‘0’
‘0’ ‘8’ ‘4’ ‘2’ ‘0’ ‘8’ ‘0’ ‘8’
‘0’ ‘1’
Start address data
1000H/081xH
‘0’ ‘1’ ‘0’ ‘1’ ‘0’ ‘1’
‘0’ ‘0’ ‘1’ ‘7’ ‘1’ ‘0’ ‘1’ ‘0’
Number of data
(word/Bit)
‘0’ ‘0’ ‘F’ ‘0’
Data content
‘0’ ‘F’
Data content
‘0’ ‘F’
‘0’ ‘0’ ‘4’ ‘1’ ‘3’ ‘F’ ‘3’ ‘F’
‘0’ ‘0’
Address data
1001H
‘0’ ‘E’ ‘0’ ‘E’ ‘0’
‘2’ ‘9’ ‘0’ ‘8’ ‘0’ ‘8’ ‘0’
LRC 1 ‘E’ ‘D’ ‘0’ LRC1 ‘F’ ‘E’ LRC1 ‘F’ ‘E’
LRC 0 ‘A’ ‘C’ ‘0’ LRC 0 ‘D’ ‘3’ LRC 0 ‘D’ ‘3’
END 1 CR CR LRC 1 ‘0’ ‘E’ END 1 CR CR END 1 CR CR
END 0 LF LF LRC 0 ‘3’ ‘3’ END 0 LF LF END 0 LF LF
END 1 CR CR
END 0 LF LF
LRC checksum:
LRC check is the added sum from “Address” to “Data content”. For example, 01H + 03H + 10+ 00H + 00H + 02H = 16H, then take the
complementary of 2, EAH.
RTU Mode:
Read command Read command response Write command Write command response
ADR 01H 01H ADR 01H 01H ADR 01H 01H ADR 01H 01H
CMD 03H 02H CMD 03H 02H CMD 06H 05H CMD 06H 05H
Starting data
address
10H 08H
Number of data
(count by byte)
04H 02H
Starting data
address
10H 08H
Starting data
address
10H 08H
00H 10H 01H 10H 01H 10H
Number of data
(word/Bit)
00H 00H
Start address data
1000H/081xH
01H 17H
Data content
03H FFH
Data content
03H FFH
02H 09H F4H 01H 20H 00H 20H 00H
CRC 1 C0H BBH
Address data
1001H
03H CRC 1 DDH 8FH CRC 1 DDH 8FH
CRC 0 CBH A9H 20H CRC 0 E2H 9FH CRC 0 E2H 9FH
CRC 1 BBH 77H
CRC 0 15H 88H
 Default Communication Response Setting
Write hex value 1234 into register at 472AH and 1234 again into register at 474EH. Re-power DTB to complete the default setting.
 Mounting
1. Insert the controller through the panel cutout.
2. Insert the mounting bracket into the mounting groove at the top and bottom of the controller
3. Push the mounting bracket forward until the bracket stops at panel wall.
4. Insert and tighten screws on bracket to secure the controller in place. (The screw torque should be 0.8kgf-cm to 1.5kgf-cm)