10

EJ1

Multiple Units with an EJ1N-HFU

Using the EJ1N-HFU

@-NFL@ to Build Systems Communicating 1:1 with a PLC Using Programless

Communications

• Up to eight HFUs can be connected to one port on a PLC.

• G3ZA/G3PW outputs can be used.

• Distributed placement is possible by using multiple EJ1C-EDU End Units.

• To connect more than one HFU, specific PLC and EJ1 models must be used.

Refer to “Connecting EJ1 Controllers 1:N to a PLC” on page 13.

Multiple Units with an EJ1N-HFU

Using the EJ1N-HFUB-DRT to Build a System Communicating with a PLC

• Up to 63 DeviceNet slaves can be connected to the DeviceNet Masters in one PLC.

• G3ZA/G3PW outputs can be used.

• Distributed placement is possible by using multiple EJ1C-EDU End Units.

V1.1

Up to eight HFUs can be connected.

PC

EJ1N-HFU

PLC

EJ1N-TC4

or

EJ1N-TC2

EJ1C-EDU

Port B

Port B is used for distributed placement.

Port A (connector): USB connection can be made with the

E58-CIFQ1 (sold separately).

CX-Thermo for setting

Port C

SYSMAC (OMRON PLC) RS-485

MELSEC (Mitsubishi Electric PLC) RS-422

EJ1N-HFU

EJ1N-TC4

or

EJ1N-TC2

EJ1C-EDU

Port C

Note: Set the EJ1N-TC to a communications unit number that is not being used by the EJ1N-HFU.

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

CDE

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

CDE

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

CDE

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-HFU

CDE

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

CDE

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

CDE

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

CDE

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-HFU

CDE

Up to 63 nodes (including other slaves)

PC

PLC

DeviceNet Configurator

or CX-Integrator

DeviceNet

Serial communications

EJ1N

DRT

MS

NS

TS

MAX

No.

NODE

ADR

COPY

EDS

UP/DN

MODE

TC2/4

NO

10

1

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

DEF

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

DEF

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

DEF

EJ1N

DRT

MS

NS

TS

MAX

No.

NODE

ADR

COPY

EDS

UP/DN

MODE

TC2/4

NO

10

1

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

DEF

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

DEF

COM1

COM2

COM3

PWR

RUN

ERR

ALM

SW1

ON

SW2

EJ1-TC4

DEF

EJ1N-HFU

EJ1N-TC4

or

EJ1N-TC2

EJ1C-EDU

Port B

Port C

EJ1N-HFU

EJ1N-TC4

or

EJ1N-TC2

EJ1C-EDU

Port B is used for distributed placement.