Mitsubishi MELSEC Q Series Handbook

3 ETHERNET INTERFACE MODULE REPLACEMENT
3 - 4
(2) Comparison between QnA/QnAS series and Q series
(a) 10BASE-T
: Compatible, : Partial change required, ×: Incompatible
*1 Length between hub and node
(b) 10BASE5
: Compatible, : Partial change required, ×: Incompatible
Item
Specifications
Compat-
ibility
Precautions for replacementQnA series QnAS series Q series
AJ71QE71N3-T A1SJ71QE71N3-T QJ71E71-100
Transmission
specifications
Transmission speed 10Mbps 100Mbps/10Mbps
Communication mode Half-duplex Full duplex/Half-duplex
Transmission method Base band
Maximum segment
length
100m
*1
Maximum number of
nodes/connection
Cascade connection: Up to 4
Up to two modules can be
connected in a cascade
connection when using at 100
Mbps.
Transfer data
storage
memory
Number of allowable
simultaneously open
connections
8 connections 16 connections
Fixed buffer 1k word × 8 1k word × 16
Random access buffer 6k words × 1
No. of E
2
PROM writes Max. 100,000 times on same area in E
2
PROM
-
No E
2
PROM (Refer to Section
3.8.)
No. of occupied I/O points
32 points/slot
(I/O assignment special 32 points)
32 points/slot
(I/O assignment intelli
32 points)
Item
Specifications
Compat-
ibility
Precautions for replacementQnA series QnAS series Q series
AJ71QE71N-B5 A1SJ71QE71N-B5 QJ71E71-B5
Transmission
specifications
Transmission speed 10Mbps
Communication mode Half-duplex
Transmission method Base band
Max. distance
between nodes
2500m
Maximum segment
length
500m
Maximum number of
nodes/connection
100/segment
Minimum node
interval
2.5m
Transfer data
storage
memory
Number of allowable
simultaneously open
connections
8 connections 16 connections
Fixed buffer 1k word × 8 1k word × 16
Random access buffer 6k words × 1
No. of E
2
PROM writes Max. 100,000 times on same area in E
2
PROM
-
No E
2
PROM (Refer to Section
3.8.)
No. of occupied I/O points
32 points/slot
(I/O assignment special 32 points)
32 points/slot
(I/O assignment intelli
32 points)
12V DC external power supply
capacity (Transceiver)
Use a transceiver and AUI cables that satisfy specifications.

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English