Mitsubishi MELSEC System Q

DeviceNet Master Module QJ71DN91
The QJ71DN91 connects a Q series PLC with the DeviceNet. DeviceNet represents a
cost-effective solution for the network integration of low-level terminal equipment.
Special features
쎲 The positions of master and slave stations are user selectable.
쎲 Transfer rates of 125, 250 and 500 kBaud
쎲 Transmission distances of up to 500 m
쎲 Communication methods
– Polling
– Bit strobe
– Change of state
– Cyclic
Master Modules for AS Interface
The QJ71AS92 is a master module for connecting System Q to the AS-interface system.
The QJ71AS92 can control up to 62 slave units (group A: 31 / group B: 31) with up to 4 inputs
and 4 outputs each per address. The addresses of the slave devices across the AS-interface
are assigned automatically by the master.
The maximum transmission distance witout a repeater is 100 m. The maximum transmission
distance can be increased up to 300 m by two repeaters.
Special features
쎲 Up to 62 slave units can be configured across two networks.
쎲 Up to 496 digital inputs/outputs can be driven via the master.
쎲 Communications via AS-i coded flat or round cable
쎲 Highly efficient error securing system
쎲 Automatic data exchange with the PLC
MELSEC System Q Beginners Manual 3 – 43
Networks and Network Modules
QJ71DN91
RUN
MS
ERR.
NS
NODE ADDRESS
X10
MODE/DR
0:M/125
1:M/250
2:M/500
3:S/125
4:S/250
5:S/500
6:D/125
7:D/250
8:D/500
X1
M
O
D
E
QJ71AS92
MODE
CODE
A
B
SET
ASI+
ASI-
ASI+
ASI-
(FG)
+
-
+
-
8.8.
QJ71AS92
RUN
PRG ENA.
U ASI
CM
ERR.
S ERR.