2.16 Details on Protocols
MEMOBUS Protocol
2-406
Changing the State of a Single Coil
Changing the Contents of a Single Hold Register
7•••••••••0
(H)
(L)
(H)
(L)
CRC-16
(H)
(L)
Command
Slave address
Function code: 05 hex
Coil address
Specified state
The function code to change the state of a single coil is 05 hex.
Set the address of the coil to change the state of.
Set the state to change the coil to.
Error checking
7•••••••••0
(H)
(L)
(H)
(L)
CRC-16
(H)
(L)
Response
Slave address
Function code: 05 hex
Coil address
Specified state
The function code to change the state of a single coil is 05 hex.
This contains the address of the changed coil.
This contains the state of the changed coil.
Error checking
7•••••••••0
(H)
(L)
(H)
(L)
CRC-16
(H)
(L)
Command
Slave address
Function code: 06 hex
Hold register address
Write data
The function code to write to a single hold register is 06 hex.
Set the address of the hold register to change.
Set the data to change the contents to.
Error checking
7•••••••••0
(H)
(L)
(H)
(L)
CRC-16
(H)
(L)
Response
Slave address
Function code: 06 hex
Hold register address
Write data
The function code to write to a single hold register is 06 hex.
This contains the address of the changed hold register.
This contains the contents of the changed data.
Error checking
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