Omron SYSMAC CS Series Operation Manual page 36

PROFIBUS Master Unit
Item
PROFIBUS DP Master Class 1 - Slave
cyclic services
PROFIBUS DP Master Class 2 - Slave
acyclic services available to the PLC
PROFIBUS DP Master - Master services Not supported
PROFIBUS DP-V1 Master Class1 -
Slave acyclic message services
(See Note 1)
PROFIBUS DP-V1 Master Class2 -
Slave acyclic message services
(See Note 2)
Number of I/O module definitions
Number of I/O data supported by Master Up to 244 bytes input and 244 bytes output max. per slave device
Number of diagnostics data supported
by Master
Additional status flags
Note
• Set_Prm
• Chk_Cfg
• Data_Exchange
• Slave_Diag
• Global-Control - CLEAR
Global-Control, initiated from CIO Word.
Can be addressed to all or a specified group of slave devices.
Supported commands:
• SYNC
• UNSYNC
• FREEZE
• UNFREEZE
Acyclic message services, initiated through FINS. Can be addresses to
one slave device at a time (See Note 1).
Supported PROFIBUS DP services:
• Get_Cfg
• Set_Slave_Add
• Rd_Inp
• Rd_Outp
• MSAC1 - Read
• MSAC1 - Write
• MSAC2 - Initiate
• MSAC2 - Read
• MSAC2 - Write
• MSAC2 - Abort
4000 max. over all configured slave devices
(defined by slave device)
Total sum of all I/O Data must not exceed 7168 words
Up to 244 bytes of diagnostics max. per slave device
Diagnostic data is collected at the Unit, and can be obtained from the
Unit using FINS messaging
DPV1 Connection/Abort status flags.
The status flags - 16 words in total - can be mapped by the user to any
PLC CPU memory location.
1. These functions are implemented as of Unit version 2.0.
2. These functions are implemented as of Unit version 3.0.
3. The maximum data length for FINS messages which are redirected to the
PROFIBUS network is 1004 bytes.
4. Although the Unit device address can be set to address 0, this number
should not be used, since this number is reserved in FINS communication.
Specification
Section 1-3
15