Omron CJ Series Operation Manual page 220

6 Message Communications
The table below lists the PROFIBUS services supported using the PROFIBUS MESSAGE SEND
command
PROFIBUS Service
Set_Slave_Add
Rd_Inp
Rd_Outp
Get_Cfg
MSAC1_Read
MSAC1_Write
.
Set_Slave_Add Service
The PROFIBUS DP Set_Slave_Add service allows a PROFIBUS Master Unit to change the address of
a remote slave device. It is defined for slave devices of which the PROFIBUS address cannot be set
through switches. Slave devices which support this service also provide a means to store the address
in internal non-volatile memory. In case this non-volatile memory does not contain an entry, the slave
device will assume the default address 126.
The figures below show the command and response message formats.
 Command Format
 Response Format
 Parameters
Destination Address (Command)
The address of the device on the PROFIBUS network, to which the PROFIBUS message will be
sent. The valid address range is 0 to 7E (Hex).
Device Service Access Point (Command)
The Device Service Access Point for the Set_Slave_Add PROFIBUS service must be set to 37
(Hex).
PROFIBUS Ident Number (Command)
6-10
D SAP
(Hex)
37 Change the address of a slave device.
38 Read the Input data of a slave device.
39 Read the Output data of a slave device.
3B Read the PROFIBUS DP I/O Configuration of a slave
device.
33 PROFIBUS DP-V1 (Class 1) Acyclic Data Read from a
slave device.
33 PROFIBUS DP-V1 (Class 1) Acyclic Data Write to a slave
device.
28 09
Command PROFIBUS
code
Ident Number
Device
address
Device Service
Access Point
28 09
Command
code
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
Description
Additional slave data
Address
change lock
New device
address
Response
code
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