Omron EJ1N-TC4

13
EJ1
MELSEC-Q/QnA/QnAS Series
Note: 1. Refer to the Mitsubishi Electric PLC documentation for information on MELSEC PLCs.
2. Direct connections to the EJ1 are possible only with RS-232C or RS-422.
3. More than one EJ1 Controller to one PLC is not possible even with RS-422 communications. Refer to Connecting EJ1 Controllers 1:N
to a PLC, below, for product combinations that support 1:N connections.
4. Connection ability has been verified for the above MELSEC models. Design changes and other factors, however, may prevent normal
connection. Always confirm operation in advance.
MELSEC-An/AnS Series
Note: Use a MELSEC-AnA/AnU CPU.
MELSEC-FX3UC Series
Connecting EJ1 Controllers 1:N to a PLC
The combinations of PLCs and HFUs that can be connected 1:N are listed below.
SYSMAC CS/CJ/CP Series
* Use only products manufactured on or after December 20, 1999.
For details, refer to the CS/CJ Series, Serial Communications Boards/Units Operation Manual (Cat. No. W336).
MELSEC-Q/QnA/QnAS Series
Note: Refer to the Mitsubishi Electric PLC documentation for information on MELSEC PLCs.
Name Model No.
Communications ports
Channel 1 Channel 2
Q-compatible Serial Communications Unit
QJ71C24N
QJ71C24
RS-232C RS-422/485
QJ71C24N-R2
QJ71C24-R2
RS-232C RS-232C
QJ71C24N-R4 RS-422/485 RS-422/485
QnA-compatible Serial
Communications Unit
AJ71QC24N RS-232C RS-422/485
AJ71QC24N-R2 RS-232C RS-232C
AJ71QC24N-R4 RS-422 RS-422/485
QnAS-compatible Serial
Communications Unit
A1SJ71QC24N RS-232C RS-422/485
A1SJ71QC24N-R2 RS-232C RS-232C
Name Model No. Communications ports
An-compatible Computer Link Unit AJ71UC24 RS-232C or RS-422/485
AnS-compatible Computer Link Unit
A1SJ71UC24-R2 RS-232C
A1SJ71UC24-R4 RS-422/485
A1SJ71UC24-PRF RS-232C
Name Model No. Communications ports
Communications Adapter
FX
3U-232ADP RS-232C
FX
3U-485ADP RS-485
Function Board
FX
3U-232-BD RS-232C
FX
3U-485-BD RS-485
Name Model No. Communications ports
Serial Communications Units
CJ1W-SCU31-V1 Port 1 or 2
CJ1W-SCU41-V1 Port 1
CS1W-SCU31-V1 Port 1 or 2
Serial Communications Board CS1W-SCB41-V1 * Port 2
CPU Units CP Series RS-422A/485 can be used by adding an Option Board.
EJ1N-HFU
EJ1N-HFUA-NFLK
EJ1N-HFUB-NFLK
Port C
Name Model No.
Serial Communications Units
Channel 2 of QJ71C24N
QJ71C24N-R4
Channel 2 of A1SJ71QC24N
Channel 2 of AJ71QC24N
AJ71QC24N-R4
EJ1N-HFU
EJ1N-HFUA-NFL2
EJ1N-HFUB-NFL2
V1.1
V1.1
V1.1