49
Signal Tower LA6-POE Operation Manual
<Read Holding Registers (03H)>
Control Command
Transaction
Identifier
Protocol
Identifier
Field
Length
Unit
Identifier
Function
Code
Data
Start Address
Number of
inputs
00H 01H
00H 00H
00H 06H
01H
03H
00H 00H
00H 06H
Specify -1 as the first register address to obtain the status for the start address.
For the number of registers, specify the number of registers to obtain the status from.
Reply Command
When the Signal Tower is in the Signal Tower mode, the 1st tier is lighting, the 2nd tier flashing, the 3rd to 5th tier is
off, and buzzer patte
rn 1 is on.
Transaction
Identifier
Protocol
Identifier
Field
Length
Unit
Identifier
Function
Code
00H 01H
00H 00H
00H 0FH
01H
03H
Data
byte Count Register 1
Register 2
Register 3
Register 4
Register 5
Register 6
0CH
00H 01H
00H 02H
00H 00H
00H 00H
00H 00H
00H 01H
<Write Single Register (06H)>
Control Command
The Signal Tower is switched to group number 15 of the smart mode.
Transaction
Identifier
Protocol
Identifier
Field
Length
Unit
Identifier
Function
Code
Data
Address
Register 7
00H 02H
00H 00H
00H 06H
FFH
06H
00H 06H
01H 0FH
For the address, specify -1 of the register address to control.
In the register, specify the desired status to control.
Reply Command
Transaction
Identifier
Protocol
Identifier
Field Length Unit Identifier Function Code
Data
Address
Register 7
00H 02H
00H 00H
00H 06H
FFH
06H
00H 06H
01H 0FH
<Diagnostics (08H)>
Control Command
Transaction
Identifier
Protocol
Identifier
Field Length Unit Identifier Function Code
Data
Diagnostic
Sub-code
Data
00H 03H
00H 00H
00H 06H
00H
08H
00H 00H
00H 00H
Diagnostic Sub-code
: 00H 00H Fixed
Data
: 00H 00H Fixed
Reply Command
When the LA6-POE control board inside the Signal Tower can be turned on.
Transaction
Identifier
Protocol
Identifier
Field Length Unit Identifier Function Code
Data
Diagnostic
Sub-code
Data
00H 03H
00H 00H
00H 06H
00H
08H
00H 00H
00H 01H
Response data when PCB is broken.
: 00H 00H
Response data when PCB is working normally. : 00H 01H