Specifications; Performance Specifications; Optical Loop System Performance Specifications - Mitsubishi QJ71LP21 Reference Manual

3 SPECIFICATIONS

3 SPECIFICATIONS

3.1 Performance Specifications

3.1.1 Optical loop system performance specifications

3
Table 3.1 Optical loop system performance specifications
Item
LX/LY
Maximum
LB
number of links
per network
LW
Maximum number of links per
station
Maximum I/O points per remote
I/O station
M
SM
Device points per
remote I/O station
D
SD
Communication speed
Number of stations per network
Overall distance
25 Mbps
Distance
between
stations
10 Mbps
Network cable
Applicable connectors
Maximum number of networks
Transmission method
'Transmission method
Synchronization method
Coding method
Transmission format
Error control
RAS functions
Application function
Transient transmission
Number of I/O points
3 - 1
The following describes the network system specifications, performance specifications
and the specifications for sending and receiving link data.
For general specifications, refer to the user's manual of the CPU module to be used on
the network system.
Table 3.1 shows the performance of the optical loop system.
Remote master station
QJ71LP21 QJ71LP21G QJ71LP21GE QJ71LP21-25 QJ71LP21S-25 QJ72LP25-25
16384 points (Remote master station
station, remote I/O station
16384 points (Remote master station
station, remote I/O station
• Remote Master Station Remote I/O station ((LY + LB)/8 + (2
• Remote I/O station Remote Master Station ((LX + LB)/8 + (2
• Multiplexed remote master station
If the X/Y numbers are duplicate, only one side is taken into consideration.
10 Mbps
65 stations (Remote master stations: 1
—
SI optical
cable : 500m
H-PCF optical
GI-50/125 GI-62.5/125
cable : 1km
Broad-band optical cable optical cable :
H-PCF optical
: 2km 2km
cable : 1km
QSI optical
cable : 1km
• Loop-back function due to error detection or broken cable
• Diagnostic function for checking local link lines
• Detection using link special relays or link special registers
• Backup of power supply on a remote I/O station
• Online module change in a remote I/O station
• Remote password for remote I/O station
• 1:1 communication (Monitor, program upload/download, etc.)
• Various send/receive commands from the PLC program (READ/WRITE,REMFR/REMTO)
32 points (Intelligent function module: 32 points)
8192 points
remote sub-master station, remote I/O station: 8192 points, remote sub-master
remote master station: 8192 points)
remote sub-master station, remote I/O station: 8192 points, remote sub-master
remote master station: 8192 points)
LW)) ≤ 1600 bytes
LW)) ≤ 1600 bytes
multiplexed remote sub-master station ((LY + LB) /8 + (2
X + Y ≤ 4096 points
8192 points
2048 points
12288 points
2048 points
25 Mbps /10 Mbps /
(selected with MODE switch)
Remote I/O stations: 64)
30 km
SI optical cable : 200m
H-PCF optical cable : 400m
Broad-band H-PCF
optical cable : 1km
QSI optical cable : 1km
SI optical cable: 500m
H-PCF optical cable: 1km
Broad-band H-PCF optical cable: 1km
QSI optical cable: 1km
Optical fiber cable (procured by user)
2-core optical connector plug (procured by user)
239 (Total including PLC to PLC networks)
Duplex loop
Token ring
Frame synchronization
NRZI code (Non Return to Zero Inverted)
HDCL standards (Frame format)
16 12 5
CRC (X + X + X + 1) and retry by timeover
48 points
(I/O Allocation:
vacant; first 16,
intelli.; last 32)
4
MELSEC-Q
Remote I/O station
QJ72LP25G QJ72LP25GE
1
LW)) ≤ 2000 bytes
10 Mbps
2
—
GI-50/125 GI-62.5/125
optical cable : optical cable :
2km 2km
3
—
3 - 1