Features; Model Information - Omron CJ Series Operation Manual

3-2-3

Features

• A single Unit supports a maximum of four inputs: resistance thermometer, thermocouple, DC cur-
rent/voltage, and potentiometer. The input type is set separately for each input.
Platinum resistance thermometer input Pt100 (JIS, IEC 3-wire), JPt100 (3-wire), Pt1000 (3-wire), or
Pt100 (JIS, IEC 4-wire) can be selected.
Thermocouple input K, J, T, E, L, U, N, R, S, B, WRe5-26, or PLII can be selected.
For DC signal, 4 to 20 mA, 0 to 20 mA, 1 to 5 V, 0 to 1.25 V, 0 to 5 V, 0 to 10 V, ±100 mV, −1.25 to 1.25
V, −5 to 5 V, or −10 to 10 V can be selected.
In addition, a potentiometer input can be selected.
• Isolation between input channels prevents unwanted current paths between input channels.
• A minimum resolution of 1/256,000 is achieved.
• The conversion cycle is 60 ms/4 points at a resolution of 1/256,000, 10 ms/4 points at 1/64,000
(Pt1000 or a potentiometer input cannot be selected), and 5 ms/4 points at 1/16,000 (K and E ther-
mocouple inputs only can be selected). The fastest conversion cycle is automatically set for the reso-
lution.
• Scaling to industrial unit is possible.
• Input ranges can be set to any values.
• Process value alarms (four alarms for each point) are provided.
• Alarm ON/OFF delay timer and hysteresis are provided for process values.
• Averaging function is provided.
• Rate-of-change function is provided.
• Rate-of-change alarms (two alarms for each point) are provided.
• Zero/span adjustment during operation is supported.
• Input error detection is supported.
• Specification of the data overrange direction during disconnection is supported.
• Adjustment period control is provided.
• Peak and bottom value detection is supported.
• Top and valley value detection is supported.
• Square root calculation (DC input only) is supported.
• Integral value calculation is supported.
3-2-4

Model Information

Type of Model
Unit
CJ-series CJ1W-PH41U
Special I/O
Unit
CJ-series Analog I/O Units Operation Manual for NJ-series CPU Unit(W498)
Number
of inputs
4 Resistance thermometer: Pt100 (JIS, IEC 3-wire), JPt100 (3-wire), Pt1000 (3-
Thermocouple:
Current:
Voltage:
Potentiometer:
The input type is set separately for each input.
3 Isolated-type Universal Input Units
Input types
wire), Pt100 (JIS, IEC 4-wire)
K, J, T, E, L, U, N, R, S, B, WRe5-26, PLII
4 to 20 mA, 0 to 20 mA
1 to 5 V, 0 to 1.25 V, 0 to 5 V, 0 to 10 V, ±100 mV,
−1.25 to 1.25 V, −5 to 5 V, −10 to 10 V
3
3-15