Hitachi SJ-PB(T) - Manual (Page 7)

CHAPTER 1 INTRODUCTION
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1.5 Profibus-DP Supported Version
SJ-PB(T) can use following Manufacturing number (MFG No) of SJ300/L300P series.
After Manufacturing number : XX8KXXXXXXXXXXXX SJ300-0.4-55kW / L300P-11-75kW supported
XXEMXXXXXXXXXXXX SJ300-75-132kW / L300P-90-132kW supported
(Note) Manufacturing number is written in specifications label on main body of SJ300/L300Pseries. Refer to
figure 1-2, figure 1-3.
(Figure1-2, 1-3 are the example of SJ300 series. L300P series are the same manner as SJ300 series.)
1.6 Technical features of Profibus-DP
• Physical media: EIA RS 485 twisted pair cable or fiber optic.
• Baud rate: 9.6 kbaud up to 12Mbaud.
• Maximum number of nodes: 126
• Maximum number of I/O: 244 bytes/slave.
• Bus topology: Master-Slave communication. The figure below gives an overview of a Profibus-DP network.
• Cyclic user data transfer between DP-Master and DP-Slaves.
• Watch-Dog Timer at the DP-Slaves
• Connecting or disconnecting stations without affecting other stations.
• Powerful diagnosis mechanisms, 3 hierarchical levels of the diagnosis messages.
• Synchronization of inputs and/or outputs.
• All messages are transmitted with Hamming Distance HD=4.
Specifications label
Figure 1-2 Position of specifications label
Figure 1-3 Contents of specifications label