Specifications Comparison Of Communication Modules; Performance Comparisons Of Communication Module Specifications - Mitsubishi Electric MELSEC-A0J2H Series Handbook

8
REPLACING THE COMMUNICATION MODULES

8.2 Specifications Comparison of Communication Modules

8.2.1 Performance comparisons of communication module specifications

Item
Interface
Dedicated
protocol
Communication
communication
method
Nonprocedural
communication
Synchronous method
Transmission speed
Start bit
Data bit
Data format
Parity bit
Stop bit
Parity check
Error detection
Sum check
Transmission control
RS-232
Transmission
distance
RS-422/485
Number of occupied I/O points
Specifications
A0J2-C214S1
RS-232 compliant
RS-232 compliant (D-Sub 9P)
(D-Sub 25P)
RS-422/485 compliant
(Two-piece terminal block)
Half-duplex communication method
Full-duplex communication (1:1 connection)/
half-duplex communication (1:n, m:n connection)
Asynchronous method
300 to 19200bps
1
7 or 8
1 (vertical parity)/none
1 or 2
Available (odd/even)/none
Available (MC protocol/bi-directional)/none
RS-232
DTR
Possible
/DSR (ER/DR) control
DC1/DC3 (Xon/Xoff) control
Possible
DC2/DC4 control
Max. 15m
Max. 500m (overall distance) Max. 1200m (overall distance)
64 points
: Compatible,
Compat-
QJ71C24N
ibility
QJ71C24N-R2
QJ71C24N-R4
RS-422/485 compliant
50 to 230400bps
RS-422/485
Not possible
Possible
32 points
: Partially changed, × : Incompatible
Precautions for replacement
Connection cable connector
must be changed.
Called MC protocol
communication in Q series.
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