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Chapter 7 Usage of Various Functions
7-63
7.2.5 RTD input module(Standard type only)
1) Performance specification
The performance specification of the RTD input module are following.
Item Specification
Connectable RTD
Pt 100 (JIS C1640-1989, DIN 43760-1980)
JPt100 (KS C1603-1991, JIS C1604-1981)
Temperature input range
Pt 100 : -200 ~ 600 (18.48 to 313.59Ω)
JPt100 : -200 ~ 600 (17.14 to 317.28Ω)
Digital output
Digital conversion value : 0 to 4,000
Detected temperature value : -2000 to 6000 (one digit after point * 10)
Burn out detection
Accuracy 0.5%
[
Full Scale
]
Maximum conversion
speed
40 scan / 1 module
Number of temperature
input device points
4Channel / 1module
Insulation method
Photo-coupler insulation between the input terminal and the PLC power
supply (non-insulation between channels)
Connection terminal block 8-point terminal block * 2
Current consumption
25
Voltage
DC21.6 26.4V
External power
supply
Current
70
Weight 240g
2) Names of parts and functions
No Name Contents
RUN LED Indicate the operating status the G7F-RD2A
RTD input
terminal
Terminal which connects Pt100 or JPt100
External power
input terminal
External voltage 24VDC needs to this terminal
Extension cable
This cable is used to connect while RTD input
module is used
Extension cable
connector
The connector connects extension cable when
extended module is used.
Explain about names of parts and functions
24V
B
A
b
B
A
b
A
b
B
A
b
24
G
G7F-RD2A
PROGRAMMABLE
LOGIC
CONTROLLER
CH2
CH3
Input
CH0
CH1
PWR
B