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Wall mount Signal Tower Instruction Manual
8. Operation
8.2.4. Example Transmission
●
Read Holding Registers (03H)
Control Command
Transaction
ID
Protocol
ID
Field
Length
Unit ID
Function
Code
Data
Start
Address
*1
Number of
Registers
*2
00H
01H
00H 00H
00H 06H
01H
03H
00H 00H
00H 06H
*1 To get the status of the register addresses, specify "-1" of the start register address.
*2 Specify the number of the registers to get the status.
Response Command
・
Signal Tower: "Tier 1: Light on", "Tier 2: Flashing (slow)", "Tier 3 and 4: Light off"
・
Buzzer: When emit buzzer with "Pattern 1"
Transaction
ID
Protocol
ID
Field
Length
Unit ID
Function
Code
00H
01H
00H 00H
00H 0FH
01H
03H
Data
Number of
bytes
Register1
Register2
Register3
Register4
Register5
Register6
0CH
00H 01H
00H 02H
00H 00H
00H 00H
00H 00H
00H 01H
●
Write Single Resister (06H)
Control Command
Signal Tower: When operating with "Tier 2: Flashing (medium)"
Transaction
ID
Protocol
ID
Field
Length
Unit ID
Function
Code
Data
Address
*1
Register2
*2
00H 02H
00H 00H
00H 06H
FFH
06H
00H 01H
01H 03H
*1 To control register addresses, specify "-1" of the register address.
*2 Specify the status to control.
Response Command
Transaction
ID
Protocol
ID
Field
Length
Unit ID
Function
Code
Data
Address
Register2
00H 02H
00H 00H
00H 06H
FFH
06H
00H 01H
01H 03H