VIPA IM 253 DP Series, Manual, Page: 45 / 100

Manual VIPA System 200V Chapter 3 Deployment IM 253DP
HB97E - IM - RE_253-xDPxx - Rev. 12/44 3-5
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Max. 125 DP slaves at one DP master - max. 32 slaves/segment
•
Max. 16 DPO slaves at one DPO master at 1.5MBaud
•
You can only install or remove peripheral modules when you have
turned the power off!
•
The max. distance for RS485 cables between two stations is 1200m
(depending on the baud rate).
•
The max. distance for FO cables between two stations is 300m (at HCS-
FO) and 50m (at POF-FO).
•
The maximum baud rate is 12MBaud.
•
The PROFIBUS address of operational modules must never be
changed.
PROFIBUS DP provides an extensive set of diagnostic functions for fast
error localization. Diagnostic messages are transferred via the bus and
collected by the master.
As a further function, the device-specific diagnostic of the DP-V1 have been
enhanced and divided into the categories alarms and status messages.
DP-V0 provides the basic functionality of DP, including cycle data
exchange as well as station diagnostic, module diagnostic and channel-
specific diagnostic.
Data is transferred cyclically between the DP master and the DP slave by
means of transmit and receive buffers.
DP-Master
Input
Output
DP-Slave with I/O-Modules
I/O Modules Communication
Processor
receive buffer
PROFIBUS-DP
V-Bus
send buffer
V-Bus cycle DP cycle
PII
PIQ
PII: process image of the inputs
PIQ: process image of the outputs
Restrictions
Diagnostic
Function
cyclic data
communication
(DP-V0)