Omron SYSMAC CS Series Operation Manual page 158

Command / Response Reference
Set_Slave_Add Service
Command Format
Response Format
Parameters
Destination Address (Command)
The address of the device on the PROFIBUS network, to which the PROFI-
BUS message will be sent. The valid address range is 0 to 7E (Hex).
Device Service Access Point (Command)
The Device Service Access Point is a 1 byte number, identifying the PROFI-
BUS service to the slave device, as defined by the PROFIBUS standard.
The table below lists the PROFIBUS services supported using the PROFIBUS
MESSAGE SEND FINS command.
PROFIBUS Service
Set_Slave_Add
Rd_Inp
Rd_Outp
Get_Cfg
MSAC1_Read
MSAC1_Write
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 can not 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.
28 09
Command PROFIBUS
code
Ident Number
Device
address
Device Service
Access Point
28 09
Command Response
code code
Destination Address (Command)
The address of the device on the PROFIBUS network, to which the PROFI-
BUS 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).
DSAP Description
(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 Configura-
tion 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.
Additional slave data
Address
change lock
New device
address
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