Omron EJ1N-TC4

6
EJ1
Ratings
* Auxiliary outputs can be allocated using digital output allocations.
Characteristics
Communications Characteristics: Port C
*1. The communications method can be switched between RS-485 and RS-232C. A separate model must be used for RS-422 communications.
*2. For the number of Units that can be connected, refer to “Connection Precautions” on page 11.
HFU Unit/EJ1N-HFU@-NFL@
Power supply voltage 24 VDC
Operating voltage range 85% to 110% of rated voltage
Power consumption 2 W max. (at maximum load)
Auxiliary outputs
*
Outputs 4
Transistor outputs Max. operating voltage: 30 VDC, Max. load current: 50 mA
Event inputs
Inputs 4
Contact inputs ON: 1 kΩ max., OFF: 100 kΩ min.
Transistor inputs ON: residual voltage of 1.5 max., OFF: leakage current of 0.1 mA max.
Outflow current: Approx. 4 mA (per contact)
Programless
connection
Downloading
(EJ1 reads data from a PLC)
Number of parameters that can be set: 1200
Uploading
(EJ1 writes data to a PLC)
Number of parameters that can be set: 1200
Applicable PLCs
OMRON: SYSMAC CS/CJ/CP Series
Mitsubishi Electric: MELSEC-An/AnS/FX3UC Series
Mitsubishi Electric: MELSEC-Q/QnA/QnAS Series
Ambient temperature range
Operating: −10°C to 55°C
Storage: −25°C to 65°C (with no icing or condensation)
Ambient humidity range Operating: 25% to 85% (with no condensation)
Insulation resistance 20 MΩ min. (at 500 VDC)
Dielectric strength 600 VAC, 50/60 Hz for 1 min between current-carrying terminals of different polarity
Vibration resistance 10 to 55 Hz, 20 m/s
2
for 2 hours each in X, Y, and Z directions
Shock resistance 150 m/s
2
, 3 times each in 6 directions
Weight 160 g
Degree of protection Rear case: IP20, Terminal section: IP00
Memory protection EEPROM (non-volatile memory) (number of writes: 100,000)
Standards
Approved standards UL61010C-1, CSA C22.2 No.1010-1
Conformed standards EN61010-1 (IEC61010-1): Pollution level 2, overvoltage category II
EMC Directive Refer to page 3.
Transmission path connection RS-485/RS-422: Multi-point, RS-232C: Point-to-point *1
Communications method RS-485/RS-422 (two-wire, half duplex), RS-232C
Synchronization method Start-stop synchronization
Communications protocol
• OMRON PLC protocol (Connectable PLCs: SYSMAC CS/CJ/CP Series)
• AnA/AnU CPU common commands (Connectable PLCs: MELSEC-An/AnS/FX3UC Series)
• MC protocol (form 5) (Connectable PLCs: MELSEC-Q/QnA/QnAS Series)
Baud rate 9.6, 19.2, 38.4, 57.6, or 115.2 kbps
Transmission code Binary
Data bit length 8 bits
Stop bit length 1 bit
Error detection Depends on protocol selected for the programless communications protocol.
Flow control None
Interface RS-485, RS-422, RS-232C *1
Retry function Available
Communications response wait time 0 to 99 ms (default: 5 ms)
Number of Basic Units that can be connected in
parallel
*2
32 Units (model numbers with TC4:128 channels max., model numbers with TC2:64 channels max.)
Number of HFUs that can be connected
• SYSMAC CS/CJ/CP-series PLCs: 8 (EJ1-HFU@-NFLK)
• MELEC Q/QnA/QnAS-series PLCs: 8 (EJ1-HFU@-NFL2)
V1.2
V1.2
V1.1
V1.1
V1.1
V1.1