Chapter 7 Usage of Various Functions
7-63
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 Each of three wires at every channel has detection function.
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
①RUN LED Indicate the operating status the G7F-RD2A
②RTD input
terminal Terminal which connects Pt100 or JPt100
③External power
input terminal External voltage 24VDC needs to this terminal
④Extension cable This cable is used to connect while RTD input
module is used
④Extension cable
connector
The connector connects extension cable when
extended module is used.
Explain about names of parts and functions
③
②
①
④
②
⑤
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