LG G4F-TC2A User manual

User’s Manual
LG Programmable Logic Controller
G3F – RD3A
G4F – TC2A
GLOFA
MASTER-K
LG Industrial Systems

Be sure to read carefully the safety precautions given in data sheet and user’s manual before operating the module
and follow them.
The precautions explained here only apply to the G3F-RD3Aand G4F-RD2A.
For safety precautions on the PLC system, see the GLOFA GM3/4 User’s Manual or the MASTER-k 1000S/300S
User’s Manual.
A precaution is given with a hazard alert triangular symbol to call your attention, and precautions are represented
as follows according to the degree of hazard.
However, a precaution followed with can also result in serious conditions.
Both of two symbols indicate that an important content is mentioned, therefore, be sure to observe it.
Keep this manual handy for your quick reference in necessary.
PRECAUTIONS
WARNING
!
If not provided with proper prevention, it can cause death or fatal
injury or considerable loss of property.
CAUTION
!
If not properly observed, it can cause a hazard situation to result
in severe or slight injury or a loss of property.
CAUTION
!
CAUTION
!
Design Precautions
▶
Do not run I/O signal lines and
compensation wires near to high
voltage line or power line.
Separate them as 100 mm or
more as possible. Otherwise,
noise can cause module mal-
function.
CAUTION
!
Installation Precautions
▶Operate the PLC in the environ-
ment conditions given in the
general specifications.
▶If operated in other environment
not specified in the general spec-
ifications, it can cause an elec-
tric shock, a fire, malfunction or
damage or degradation of the
module
▶Make sure the module fixing pro-
jections is inserted into the mod-
ule fixing hole and fixed.
▶Improper installation of the mod-
ule can cause malfunction, dis-
order or falling.

CAUTION
!
Wiring Precautions
▶
When grounding a FG terminal, be sure to provide class 3 grounding which is dedicated to
the PLC. If not grounded, It can cause malfunction.
▶Before the PLC wiring, be sure to check the rated voltage and terminal arrangement for
the module and observe them correctly.
If a different power, not of the rated voltage, is applied or wrong wiring is provided, it can
cause a fire or disorder of the module.
▶Drive the terminal screws firmly to the defined torque.
If loosely driven, it can cause short circuit, a fire or malfunction.
▶Be careful that any foreign matter like wire scraps should not enter into the module.
It can cause a fire, disorder or malfunction.
WARNING
!
Test Run and Maintenance
Precautions
▶
Do not contact the terminals
while the power is applied.
It can cause malfunction.
▶When cleaning or driving a termi-
nal screw, perform them after the
power has been turned off
▶Do not perform works while the
power is applied, which can
cause disorder or malfunction.
CAUTION
!
▶
Do not separate the module from
the printed circuit board(PCB), or
do not remodel the module.
They can cause disorder, mal-
function, damage of the module
or a fire.
When mounting or dismounting
the module, perform them after
the power has been turned off.
▶Do not perform works while the
power is applied, which can
cause disorder or malfunction.
CAUTION
!
Waste Disposal Precautions
▶
When disposing the module, do it as an industrialwaste.

◎CONTENTS ◎
Chapter 1. INTRODUCTION
1.1 Features …………………………………………………………………………………… 1 – 1
1.2 Glossary …………………………………………………………………………………… 1 – 2
1.2.1 A – Analog Value ……………………………………………………………………… 1 – 2
1.2.2 D – Digital Value ……………………………………………………………………… 1 – 2
1.2.3 PT …………………………………………………………………………………… 1 – 2
1.2.4 Burn-out function ……………………………………………………………………… 1 – 2
Chapter 2. SPECIFICATIONS
2.1 General Specifications ……………………………………………………………………… 2 – 1
2.2 Performance Specifications ………………………………………………………………… 2 – 2
2.3 Names of Parts and Functions ……………………………………………………………… 2 – 3
2.3.1 G3F-RD3A ………………………………………………………………………………… 2 – 3
2.3.2 G4F-RD2A ………………………………………………………………………………… 2 – 4
2.4 RTD Input Module Characteristics ……………………………………………………… 2 – 5
2.4.1 Temperature Conversion Characteristics ………………………………………………… 2 – 5
2.4.2 Conversion Speed ……………………………………………………………………… 2 – 5
2.4.3 Accuracy ………………………………………………………………………………… 2 – 5
2.4.4 Burn-out Function ……………………………………………………………………… 2 – 6
2.5 Connection between a Pt and RTD Input Module ……………………………………… 2 – 7
Chapter 3. INSTALLATION AND WIRING
3.1 Installation ………………………………………………………………………………… 3 – 1
3.1.1 Installation Ambience …………………………………………………………………… 3 – 1
3.1.2 Handling Precautions ……………………………………………………………………… 3 – 1
3.2 Wiring Precautions ………………………………………………………………………… 3 – 2

Chapter 4. FUNCTION BLOCKS
4.1 Inserting Function Blocks for RTD Input Module in GMWIN ………………………………… 4 – 1
4.2 Local Function Blocks ……………………………………………………………………… 4 – 2
4.2.1 Module Initialization (G3F-RD3A:RTD3INI, G4F-RD2A:RTD2INI) …………………………… 4 – 2
4.2.2 Reading the Detected Temperature Value of the Module(ArrayType)
(G3F-RD3A:RTD3ARD, G4F- RD2A:RTD2ARD) ………………………………………… 4 – 3
4.2.3 Reading the Detected Temperature Value of the Module (Single Type)
(G3F-RD3A : RTD3RD, G4F-RD2A : RTD2RD) …………………………………………… 4– 4
4.3 Remote Function Blocks ……………………………………………………………………… 4 – 5
4.3.1 Module Initialization (G3F-RD3A:RTDR3INI, G4F-RD2A:RTDR2INI) ……………………… 4 – 5
4.3.2 Reading the Detected Temperature Value of the Module …………………………………… 4 – 6
(G3F-RD3A:RTDR3ARD, G4F-RD2A:RTDR2ARD)
4.4 Errors on Function Block …………………………………………………………………… 4 – 7
4.4.1 Errors Indicated by the Output Variable STAT …………………………………………… 4 – 7
4.4.2 Error Indicated by the Output VariableALM_CODE in theArray Type
Detected Temperature Value Reading Function Block …………………………………… 4 – 7
Chapter 5. PROGRAMMING
5.1 A Program for Output of the Detected Temperature Value as a BCD Value ………………… 5 – 1
5.2 A Program for Conversing the Detected Temperature Value(°C) into Fahrenheit(°F)
and Output as a BCD Value ………………………………………………………………… 5 – 6
5.3 A Program when Loading the RTD Input Module onto the Remote I/O Station ……………… 5 – 9
Chapter 6. BUFFER MEMORY CONFIGURATIONAND FUNCTIONS
6.1 Buffer Memory Configuration ……………………………………………………………… 6 – 1
6.1.1 G3F-RD3A Buffer Memory ……………………………………………………………… 6 – 1
6.1.2 G4F-RD2A Buffer Memory ……………………………………………………………… 6 – 2
6.2 Functions of Buffer Memory ……………………………………………………………… 6 – 3
6.2.1 Specifying Channel Enable/Disable ……………………………………………………… 6 – 3
(G3F-RD3A:Address 0, G4F-RD2A:Address 0)
6.2.2 Specifying the Type of the RTD ………………………………………………………… 6 – 3
(G3F-RD3A:Addresses 1 to 8, G4F-RD2A:Addresses 1 to 4)
6.2.3 Detected Temperature Value …………………………………………………………… 6 – 4
(G3F-RD3A:Addresses 9, 12, 15, 18, 21, 24, 27 and 30, G4F-RD2A:Addresses 5, 8, 11 and 14)

6.2.4 Digital Conversion Value ……………………………………………………………… 6 – 4
(G3F-RD3A:Addresses 10, 13, 16, 19, 22, 25, 28 and 31, G4F-RD2A:Addresses 6, 9, 12 and 15)
6.2.5 Error Code …………………………………………………………………………… 6 – 4
(G3F-RD3A:Addresses 11, 14, 17, 20, 23, 26, 29 and 32, G4F-RD2A:Addresses 7, 10, 13 and 16)
6.2.6 Specifying SET Data …………………………………………………………………… 6 – 5
(G3F-RD3A:Address 33, G4F-RD2A:Address 17)
6.2.7 Information on Run Channel …………………………………………………………… 6 – 5
(G3F-RD3A:Address 34, G4F-RD2A: Address 18)
6.2.8 Information on RTD Specification Error ………………………………………………… 6– 6
(G3F-RD3A:Address 35, G4F-RD2A:Address 19)
Chapter 7. DEDICATED INSTRUCTIONS FOR SPECIAL MODULES
(Read from/Write to Buffer Memory)
7.1 Local ………………………………………………………………………………………7 – 1
7.1.1 Read from Buffer Memory…GET, GETP…………………………………………………7 – 1
7.1.2 Write to Buffer Memory…PUT, PUTP……………………………………………………7 – 2
7.2 Remote ……………………………………………………………………………………7 – 3
7.2.1 Read from Buffer Memory…RGET …………………………………………………… 7 – 3
7.2.2 Write to Buffer Memory…RPUT …………………………………………………… 7 – 4
Chapter 8. PROGRAMMING
8.1 Basic Programming ………………………………………………………………………8 – 1
8.1.1 G3F-RD3A …………………………………………………………………………… 8 – 1
8.1.2 G4F-RD2A …………………………………………………………………………… 8 – 2
8.2 Application Programming ………………………………………………………………… 8 – 3
8.2.1 A Program for Output of the Detected Temperature Value as a BCD Value ……………… 8 – 3
8.2.2 A Program for Conversing the DetectedTemperature Value(°C) into Fahrenheit(°F)
and Output as a BCD Value ………………………………………………………… 8 – 4
8.2.3 A Program when Loading the RTD Input Module onto the Remote I/O Station ……………8 – 6
Chapter 9. TROUBLESHOOTING
9.1 Errors Indicated by RUN LED Flickering …………………………………………………… 9 – 1
9.2 Troubleshooting Procedure ………………………………………………………………… 9 – 2
9.2.1 RUN LED Flickering …………………………………………………………………… 9 – 2
9.2.2 RUN LED Off ………………………………………………………………………… 9 – 2
9.2.3 Detected Temperature Value Unreadable from the CPU Module …………………………… 9 – 3

9.2.4 Input Value of the RTD Is Not Consistent with
The Detected Temperature Value ……………………………………………………… 9 – 4
9.2.5 RTD Input Module Hardware Defect …………………………………………………… 9 – 4
Chapter 10.DIMENSIONS.
10.1 G3F-RD3A Dimensions ……………………………………………………………………10 – 1
10.2 G4F-RD2A Dimensions ……………………………………………………………………10 – 2
Appendix 1. Standard Resistance Value of Pt/RTD ……………………………………… A – 1

Chapter 1. INTRODUCTION
1 - 1
Chapter 1. INTRODUCTION
These two units are called G3F-RD3A and G4F-RD2A. The G3F-RD3Ais an Pt input module used with the
CPU of GLOFA GM1/2/3 series and MASTER-K1000S series, and the G4F-RD2A is used with the CPU of
GM4 series and K 300S series Hereafter, the two units are called the RTD input module
The RTD input module is a module that converts the temperature data(°C) input by the Pt (Pt100 or JPt100)
into a signed 16 bit digital binary data and outputs it.
1.1 Features
1) With direct connection of the RTD input module, the temperature data(°C) can be converted into a digital
value to be processed in the PLC.
2) The temperature data(°C) input can be processed to one digit after the point as a digital value.
3) One module can be connected to G3F-RD3A8-point or G4F-RD2A4-point Pt100 or JPt100.
4) The RTD input module has Pt100, Jpt100 or cable burn-out function at their every channel.
5) The RTD input module detects the out-of-range temperature that is input by Pt100 or JPt100.

Chapter 1. INTRODUCTION
1 - 2
1.2 Glossary
1.2.1 A -Analog Value
The continuous changeable value such as voltage, current, temperature, velocity, pressure and flow is
called analog value. For example, temperature changes continuously with time as shown in Fig. 1.1. The
PLC can process that continuous changeable temperature by use of the RTD input module.
1.2.2 D - Digital Value
In Fig.1.2, the number of man can be counted as 0, 1, 2, 3. The non-continuous changeable value as such
is called a digital value. On and Off signals can be denoted as a digital value 0 and 1, respectively.
Analog value cannot be directly input to the CPU
module for digital processing. Therefore, analog value
should be converted into a digital value to be input to
the CPU module. In addition, for external output of
analog value, digital value of the CPU module should
be converted into analog value.
1.2.3 Pt
This is a sensor that detects temperature as the type of resistance.
The Pt 100 outputs the resistance value of 100.00 Ωfor the temperature of 0 °C
1.2.4 Burn-out Function
If a part of the connected RTD or cable is disconnected, the out-of-range voltage is input by the internal
burn-out circuit and the connection or disconnection is detected.
A/D
Conversion
CPU
(Digital
processing)
D/A
Conversion
Analog
-200~-600℃
Analog
0~±10V or
4~20mA
[Fig 1.3] Processing in the PLC
0
Temperature
time
time
Number of man
[Fig 1.1]Analog Value
[Fig 1.2] Digital Value
0

Chapter 2. SPECIFICATIONS
2 - 1
REMARK
Chapter 2. SPECIFICATIONS
2.1 General Specifications
Table 2.1 shows general specifications of the GLOFAGM series and MASTER-K series
No Item Specifications
Reference
specification
1
Operating
ambient
temperature
0 ~ 55 °C
2
Storage
ambient
temperature
-25 ~ +75 °C
3
Operating
humidity
5 ~ 95%RH, non-condensing.
4
Storage
humidity
5 ~ 95%RH, non-condensing.
5
Vibration
Occasional vibration
IEC 61131-2
Frequency
Acceleration
Amplitude
Sweep
Count
10≤f<57 Hz
-
0.075 mm
10 times in
each
direction
for X,Y,Z
57≤f≤150 Hz
9.8 m/s 2{1 G}
-
Continuous vibration
Frequency
Acceleration
Amplitude
10≤f <57 Hz
-
0.035 mm
57≤f≤150 Hz
4.9 m/s2{0.5G}
-
6 Shocks 
Maximum shock acceleration: 147 m/s2{15G}
Duration time : 11ms
Pulse wave: half sine pulse (3 times in each of X, Y and Z directions)
IEC 61131-2
7 Noise
Immunity
Square wave impulse
noise
±1,500 V
LGIS
Standard
Electrostatic discharge Voltage : 4 kV (contact discharge)
IEC 61131-2,
IEC 1000-4-2
Radiated electromagnetic
field
27 ~ 500 MHz, 10 V/m
IEC 61131-2,
IEC 1000-4-3
Fast transient/burst noise Severity
Level
All
Power
modules
Digital
I/Os (Ue
> 24 V)
Digital I/Os
(Ue < 24 V)
Analog I/Os
interface
communication
I/Os
IEC 61131-2,
IEC 1000-4-4
Voltage
2 kV
1 kV
0.25 kV
8
Operating
Atmosphere
Free from corrosive gases and excessive dust.
9
Operation
Altitude
Up to 2,000m
10
Pollution
degree
2
11
Cooling
method
Self-cooling
[Table 2.1] General Specifications
1) IEC(International Electromechanical Commission) : The international civilian organization which produces standards
for electrical and electronic industry.
2) Pollution degree : It indicates a standard of operating ambient pollution level The pollution degree 2 means the condition
in which normally, only con-conductive pollution occurs. Occasionally, however, a temporary conductivity caused by
condensation shall be expected.