Omron CJ Series User Manual

6 Message Communications
6-10
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
The table below lists the PROFIBUS services supported using the PROFIBUS MESSAGE SEND
command
.
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)
PROFIBUS Service
D SAP
(Hex)
Description Page
Set_Slave_Add 37 Change the address of a slave device. 10
Rd_Inp 38 Read the Input data of a slave device. 11
Rd_Outp 39 Read the Output data of a slave device. 12
Get_Cfg 3B Read the PROFIBUS DP I/O Configuration of a slave
device.
13
MSAC1_Read 33 PROFIBUS DP-V1 (Class 1) Acyclic Data Read from a
slave device.
14
MSAC1_Write 33 PROFIBUS DP-V1 (Class 1) Acyclic Data Write to a slave
device.
18
Set_Slave_Add Service
Device
address
Command
code
28 09
Device Service
Access Point
PROFIBUS
Ident Number
New device
address
Address
change lock
Additional slave data
0928
Command
code
Response
code

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English