Mitsubishi Electric Melsec Q Series User Manual page 143

4
FUNCTIONS
(3) Functions available for redundant systems
PROFIBUS-DPV0
PROFIBUS-DPV1
PROFIBUS-DPV2
Data swap function
Data
consistency
function
Output status setting for the case of a CPU stop error
Temporary slave reservation function
QJ71PB92D-compatible function
(4) Setting for using the QJ71PB92V in the redundant system
Item
Parameter setting in GX
Configurator-DP
Required
setting
Standby master FDL address
setting
Setting of the target DP-Slaves
for system switching.
Set if needed
Tracking settings
The following shows the functions available for the case where the QJ71PB92V is
mounted on a redundant system.
Table4.10 Functions available for redundant systems
Function
I/O data exchange
Acquisition of diagnostic and extended diagnostic
information
Global control function
Acyclic communication with DP-Slaves
Alarm acquisition
Time control over DP-Slaves
Data consistency function by automatic refresh
Data consistency function by dedicated instructions
* 1 For precautions for using respective functions in the redundant system, refer to section 7.9 to
7.9.7.
* 2 Independently of the setting, I/O data exchange with DP-Slaves is continued until both A and B
systems go down.
To use the QJ71PB92V in a redundant system, make the following settings.
Table4.11 Setting for using the QJ71PB92V in the redundant system
In GX Configurator-DP, set the parameters of the QJ71PB92V.
The FDL address set as a master parameter is assigned to the
QJ71PB92V in the control system.
In the intelligent function module switch setting in GX Works2,
set an FDL address for the QJ71PB92V in the standby system.
Specify the target DP-Slaves for system switching in the System
switching condition setting area (Disconnected station detection)
(Un\G23648 to Un\G23656).
This setting is not required when no system switching is to be
performed n the event of a communication error with a DP-Slave.
Set the tracking devices to continuously use the QJ71PB92V
functions after system switching.
4.8 Redundant system support function
Availability
*1
*1
*1
*1
*1
*2
*1
: Available : Available with restriction
Description
1
2
Reference
Section 4.1.1
Section 4.1.2
Section 4.1.3
3
Section 4.2.1
Section 4.2.2
Section 4.3.1
Section 4.4
4
Section 4.5
Chapter 8
Section 4.6
Section 4.7
Section 4.9
: Not available
5
6
Reference
Section 6.1 to 6.6
Section 6.7
7
Section 3.4.14
Section 7.9 to 7.9.7
8
4
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