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
• 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
Up to 32 stations (1 control station, 31 normal stations)
Communication
speed
Twisted pair
cable
CC-Link Ver.
1.10-compatible
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 or CC-Link Ver.1.10-compatible cable*4
Number of occupied I/O
points
32 points (intelligent function module: 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.