Appendix 7 Differences Between Qj71Dn91 And Rj71Dn91; Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 7
This section describes the differences in the DeviceNet master/slave module between the MELSEC-Q series (QJ71DN91)
and the MELSEC iQ-R series (RJ71DN91).

Function

The following table lists the differences in functions between the QJ71DN91 and the RJ71DN91.
: Available, : Not available
Item

Refresh function
Start address, transfer size specification
Data consistency
Hardware test/communication test function
Parameter setting Configuration software
method
Operation setting for bus off error
Data consistency DNTMRD
dedicated instruction DNTMWR
DNTSRD
DNTSWR
Parameter Saved to the CPU
Saved to the built-in flash ROM of module
Communication error Buffer memory
information storage 'Master function communication error information'
destination (Un\G1152)
'Slave function communication error information'
(Un\G1153)
'Other slave communication error information'
(Un\G1154 to Un\G1217)
Differences between QJ71DN91 and
RJ71DN91
QJ71DN91
: Configuration software
: The start address and transfer size
can be specified in some areas.

:
• At error occurrence: Only the ERR
LED turns on.
• During the test: The MS LED is
flashing in green.
: GX Works2
: The setting value set before error
occurrence is valid.
: The setting range of data points
(s3) is from 0.




Appendix 7 Differences between QJ71DN91 and RJ71DN91

RJ71DN91
: Engineering tool
: Refresh with the maximum size is
performed on all areas.
: Data consistency can be
maintained with the parameter "Data
consistency setting" enabled.
:
• At error occurrence: The ERR LED
and MS RED LED turn on.
• During the test: The MS LED is
flashing in green and red
alternatively.
: GX Works3
: The setting value is valid even
though it is changed after error
occurrence.
: The setting range of data points
(s3) is from 1.
: Engineering tool
: The parameter saved with the
QJ71DN91, 'Operation setting for bus
off error area' (Un\G1586), and 'Data
consistency setting' (Un\G1587) are
saved.
: The information is stored in these
areas, 'Master function error
information' (Un\G433), and 'Slave
function error information' (Un\G1537).
APPX
A
119