2
2. PERFORMANCE SPECIFICATIONS
The following table shows the performance specifications for the network
module:
Specifications
Item
QJ71NT11B
MELSECNET/H mode, MELSECNET/H Extended mode*1
LX/LY
8192
points
LB
16384
points
LW
16384
points
Maximum number of link
points per network
Maximum
number of
link points
per station
PLC to PLC
network
• MELSECNET/H mode
{(LY+ LB) /8 + (2 × LW)}
≤
2000 bytes *2
• MELSECNET/H Extended mode
{(LY+ LB) /8 + (2 × LW)}
≤
35840 bytes *2
Communication speed
156kbps/312kbps/625kbps/1.25Mbps/2.5Mbps/5Mbps/10Mbps
(Switched by network parameters)
Communication method
Token bus
Synchronous method
Frame synchronous
Transmission path format
Bus (RS-485)
Maximum number of
networks
239
Maximum number of
groups
32
Number of
stations per
network
PLC to PLC
network
32 stations (Control station: 1, Normal station: 31)
Communication
speed
Twisted pair
cable
Version 1.10
compatible CC-Link
dedicated cable
156kbps
*3
1200m
1200m
312kbps
600m
900m
625kbps
400m
600m
1.25Mbps
200m
400m
2.5Mbps
200m
5Mbps
150m
10Mbps
-
(Not applicable)
100m
Overall distance for one
network
Connection cable
Twisted pair cable (optional), Version 1.10 compatible CC-Link
dedicated cable (optional)*4
Number of I/O occupied
points
32 points (I/O assignment: intelligent 32 points)
Internal current
consumption (5VDC)
0.6A
External dimensions
98 (3.86) (H)
×
27.4 (1.08) (W)
×
90 (3.54) (D) [mm (inch)]
Weight
0.13kg
*1: Mode selection is performed using network parameters.
*2: The number of LY points of the stations set in the I/O master station is the sum total of the
LY points for output to all stations within the block.
*3: This value is set as default of the communication speed.
*4: For details of cable specifications, refer to Section 5.1 or Section 5.2 in this manual.
For general specifications of the network module, refer to the user's manual for the CPU used.
