Omron 3G3AX-MX2-PRT-E, Руководство пользователя

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4
Introduction to PROFIBUS
Section 1-3
1-3 Introduction to PROFIBUS
1-3-1 The Purpose of PROFIBUS
PROFIBUS (PROcess FIeldBUS) is an open fieldbus standard for a wide
range of applications in manufacturing, processing and building automation.
The Standard, IEC 61158 (Industrial communication networks), to which
PROFIBUS adheres, guarantees vendor independence and transparency of
operation. It enables devices of various manufacturers to intercommunicate
without having to make any special interface adaptations.
1-3-2 What is PROFIBUS DP
PROFIBUS DP (for Decentralized Periphery) is a variant optimized for high
speed and low-cost interfacing. It is specially designed for communication
between automation control systems and distributed I/O at the device level.
PROFIBUS DP uses the same transmission technology and uniform bus
access protocol as PROFIBUS FMS (for Fieldbus Message Specification).
Consequently, both versions can be operated simultaneously on the same
bus. DP field devices, however, cannot be controlled by FMS masters and
vice versa.
!Caution It is not possible to exchange a PROFIBUS DP device or master for a PROFI-
BUS FMS device or master. This will cause faulty operation.
Table 1 Option Board Specifications (continued)
Item Specification
PROFIBUS DP
Services and
Profiles
Master Class 1 – Slave
cyclic services Set_Prm Chk_Cfg Slave_Diag Data_Exchange
Get_Cfg Rd_Inp Rd_Outp
Global-Control ( SYNC/UNSYNC, FREEZE/UNFREEZE & CLEAR )
Master Class 1 – Slave
acyclic services Not supported
Master Class 2 – Slave
acyclic services MSAC2_Initiate MSAC2_Read MSAC2_Write MSAC2_Abort
Profiles supported PROFIdrive V2 (If P182 = 0)
Conventional (If P182 = 1)
Flexible (If P182 = 2)
Supported I/O modules PROFIdrive V2
(If P182 = 0) PPO Type 1 (4 words PKW + 2 words PZD)
PPO Type 2 (4 words PKW + 6 words PZD)
PPO Type 3 (2 words PZD)
PPO Type 4 (6 words PZD)
PPO Type 5 (4 words PKW + 10 words PZD)
Conventional
(If P182 = 1) Basic Data
Extended Data 1
Extended Data 2
Flexible
(If P182 = 2) Flexible (10 words output and input)
I/O Data
I/O data 28 bytes max. input data using PPO Type 5
28 bytes max. output data using PPO Type 5
Diagnostics data size 11 bytes
MX2 GSD file
OC_0C6A.gsd
RX GSD file
OC_0D2F.gsd
I111E-EN-02+3G3AX-MX2-RX-PRT+OperManual.book Seite 4 Donnerstag, 8. September 2011 11:53 11