Appendix; Appendix 1 Comparison Of Network Module Specifications, And Compatibility; Appendix 1.1 List Of Comparison Between Melsecnet/H And Melsecnet/H Extended Mode And Melsecnet/10 Mode Specifications - Mitsubishi Electric Q Series Reference Manual

APPENDIX

APPENDIX

Appendix 1 Comparison of network module specifications, and compatibility

Appendix 1.1 List of Comparison between MELSECNET/H and MELSECNET/H Extended
Modes and MELSECNET/10 Mode Specifications
The MELSECNET/H system supports the MELSECNET/H and MELSECNET/H
Extended modes (high functionality/high-speed mode) and the MELSECNET/10 mode
(functional and performance compatibility mode), which are explained in this manual.
When the MELSECNET/10 mode is used, it is easy to make connection with the
AnU/QnA corresponding MELSECNET/10. However, its specifications are different
from those of the MELSECNET/10 mode, as shown in Table 1 below.
Since this manual is written assuming that MELSECNET/H is used in the MELSECNET/H
and MELSECNET/H Extended mode, see the "QnA/Q4AR Corresponding MELSECNET/10
Network System Reference Manual" to use it in the MELSECNET/10 mode.
Table 1 Comparison of specifications among MELSECNET/H mode,
MELSECNET/H Extended mode and MELSECNET/10 mode
Specification item
Transmission type
I/O (LX, LY)
Maximum number
Link relay (LB)
of link points
Link register (LW)
Maximum number of link points per station
Transient transmission data size
Communication speed
Link scan time
Transmission delay time
Communication method
Overall distance
Distance between stations
Maximum number of networks
Maximum number of groups
Maximum number of connected stations
Maximum number of modules installed per CPU
32 bits data guarantee
Block guarantee per station
Transient transmission function
N:N communication (monitor, upload/download, etc.)
Number of data sending/receiving channels
Compatible instructions (SEND, RECV, READ,
SREAD, WRITE, SWRITE, REQ, ZNRD, ZNWR)
RRUN, RSTOP, RTMRD, RTMWR instruction
RECVS instruction
Low-speed cyclic transmission function
Maximum number of refresh parameters that can be set
(excluding SB, SW)
Network connection
applicable CPU
1: 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.
App - 1
Selected mode
MELSECNET/H mode, MELSECNET/H
Extended mode
16,384 points
16,384 points
[MELSECNET/H mode]
{(LY+LB)/8 + (2
1
[MELSECNET/H Extended mode]
{(LY+LB)/8 + (2
Maximum 1,920 bytes/frame
25 Mbps/10 Mbps (from switch setting)
[MELSECNET/H mode, communication speed
10Mbps]
KB + (0.45 total stations) + (total number of
bytes used by network
Sequence scan time of sending side
+ refresh time of sending side
+ LS 1
+ sequence scan time of receiving side
+ refresh time of receiving side
Token bus method [coaxial bus type]/token ring method [optical loop type]
500 m (1640.5 ft.) [coaxial bus type]/30 km (98430 ft.) [optical loop type]
[optical loop type (Communication speed 10 Mbps)]
1 km (3281 ft.)
500 m (1640.5 ft.) : When SI cable is used
[coaxial bus type]
500 m (1640.5 ft.) : 5C-2V
300 m (984.3 ft.)
32 stations (1: control station, 31: normal stations) [coaxial bus type]/
64 stations (1: control station, 63: normal stations) [optical loop type]
Total of 4 modules (Basic model CPU and safety CPU: 1 module)
Supported
Supported
Receive channels: 64
(up to 8 channels when used at the same time)
Send channels: 8
Available
64 per module (8 for a Basic model CPU and safety CPU)
QCPU (Q mode)
MELSECNET/H network system
Coaxial bus type/optical (SI) loop type
8,192 points
LW)} 2000 bytes
{(LY+LB)/8 + (2
LW)} 35840 bytes
KB + (0.75
+ (total number of bytes used in the network
0.001) (ms)
Sequence scan time of sending side
+ refresh time of sending side
+ LS
2 + sequence scan time of receiving side
+ refresh time of receiving side
2.5 km (8202.5 ft.) : When 4 repeaters are connected
: When QSI/Broad-band H-PCF/H-PCF cable is used
: 3C-2V
239
32
Supported
Available
Available
Yes
MELSEC-Q
MELSECNET/10 mode
8,192 points
8,192 points
LW)} 2000 bytes
Maximum 960 bytes/frame
10 Mbps
total number of stations)
0.001) (ms)
2
2
9
Not supported
Not supported
8 (fixed channels)
Not available
No
QCPU (Q mode)
QCPU-A (A mode)
QnACPU
ACPU
App - 1
App.