Profibus-Dp Master Module - Mitsubishi Electric MELSEC-Q Series Migration Manual
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Also See for MELSEC-Q Series:
- User manual (834 pages) ,
- Reference manual (674 pages) ,
- Programming manual (624 pages)
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PROFIBUS-DP master module
QJ71PB92V and RJ71PB91V
: Compatible : Partly changed : Incompatible : Not applicable
Item
Description
PROFIBUS
I/O data
Up to 125 DP-Slaves can be connected to a single QJ71PB92V,
-DPV0
exchange
enables the I/O data exchange.
Acquisition of
Diagnostic or extended diagnostic information of an error occurred
diagnostic and
on a DP-Slaves during I/O data exchange can be easily acquired
extended
using the buffer memory and I/O signals.
diagnostic
information
Global control
By sending services (SYNC, UNSYNC, FREEZE, UNFREEZE) to
function
each DP-Slave in a group, synchronous control of DP-Slave I/O
data is available.
PROFIBUS
Acyclic
Allows data reading/writing to DP-Slaves at any specific timing
-DPV1
communication
independently of I/O data exchange.
Alarm acquisition
Enables acquisition of up to 8 alarms or status information data that
have been generated on any DP-Slave.
PROFIBUS
Time control over
Operates as the time master and set the time of each DP-Slave.
-DPV2
DP-Slaves
Data swap function
Swaps the upper and lower bytes in word units when I/O data is
sent and received.
Data consistency function
When I/O data from DP-Slaves are read from or written to the buffer
memory, prevents the I/O data from being separated and incorrectly
mixed.
Output status setting for the
Sets the handling of I/O data when a CPU stop error occurs in a
case of a CPU stop error
CPU module to which the PROFIBUS-DP master module is
mounted.
Temporary slave reservation
Without modifying the slave parameter in GX Configurator-DP,
function
allows the DP-Slave type to be changed to "Reserved station"
temporarily.
Redundant system support
When the control system CPU or the PROFIBUS-DP master
function
module detects an error, the control and standby systems are
switched each other to continue communications.
MELSEC-Q
MELSEC iQ-R
series
series
QJ71PB92V
RJ71PB91V
9 CONTROL NETWORK MODULE MIGRATION
9.3 Comparison of Control Network Module Functions
9
Precautions
349
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