LG G3F-TC4A User manual

User
UserUser
User’
’’
’s Manual
s Manuals Manual
s Manual
LG Programmable Logic Controlle
r
G3F – TC4
A
G4F – TC2
A
G6F – TC2
A
GLOFA
MASTER-K
LG
LGLG
LG Industrial Systems

REVISIONS
Date REV. No Description
2001.4. 702004908 G6F-TC2A Module added

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-TC4A , G4F-TC2A andG6F-TC2A.
For safety precautions on the PLC system, see the GLOFA GM3/4 User’s Manuals, GLOFA GM6 User’s Manuals
or the MASTER-K 1000S/300S/200S User’s Manuals.
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.
SAFETY 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 resul
t
in severe or slight injury or a loss of property.
CAUTION
!
CAUTION
!
Design Precautions
▶Do not run I/O signal lines and compensating wires near to high voltage line o
r
power line.
Separate them as 100 mm or more as possible.
Otherwise, noise can cause module malfunction.

WARNING
!
T
es
t
R
un an
d
M
a
i
n
t
enance
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), o
r
do not remodel the module.
They can cause disorder, mal-
function, and damage of the
module or a fire.
When mounting or dismounting
the module, perform them afte
r
the power has been turned off.
▶Do not perform works while the
power is applied, which can
cause disorder or malfunction.
CAUTION
!
W
as
t
e
Di
s
p
osa
l
P
recau
ti
ons
▶When disposing the module, do it as an industrial waste.
CAUTION
!
Installation Precautions
▶Operate the PLC in the environ-
ment conditions given in the
general specifications.
▶If operated in other environmen
t
not specified in the general
specifications, it can cause an
electric shock, a fire, malfunction
or damage or degradation of the
module
▶Make sure the module fixing
projections is inserted into the
module 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.
▶Before the PLC wiring, be sure to
check the rated voltage and ter-
minal arrangement for the mod-
ule and observe them correctly.
If a different power, not of the
rated voltage, is applied o
r
wrong wiring is provided, it can
cause a fire or disorder of the
nodule.
▶Drive the terminal screws firml
y
to the defined torque.
If loosely driven, it can cause
short circuit, a fire or malfunc-
tion.
▶Be careful that any foreign matte
r
like wire scraps should not ente
r
into the module.
It can cause a fire, disorder o
r
malfunction.

◎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 Compensating Wire ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙1-2
1.2.4 Thermocouple ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 1-3
1.2.5 Temperature Conversion Characteristics ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙1-3
1.2.6 Burn-out Detection ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 1-3
1.2.7 Reference Junction Compensation (RJC) ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 1-3
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-TC4A ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙2-3
2.3.2 G4F-TC2A ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 2-4
2.3.3 G6F-TC2A ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 2-4
2.4 I/O Conversion Characteristics ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙2-5
2.4.1 Temperature Conversion Characteristics ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙2-5
2.4.2 Conversion Speed ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙2-5
2.4.3 Accuracy ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙2-6
2.4.4 Burn-out Detection ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙2-6
2.4.5 Displaying Temperature Conversion Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙2-7
2.4.6 Displaying Digital Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 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 ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙3-2
3.2.1 Wiring Precautions ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙3-2

Chapter 4. FUNCTIONS BLOCKS
4.1 Insertion of the Function Blocks for Thermocouple Input Module on the GMWIN ∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4-1
4.2 Local Function Block ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙4-2
4.2.1 Module Initialization (G3F-TC4A:TC4INI, G4F-TC2A/G6F-TC2A:TC2INI) ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙4-2
4.2.2 Module Reading (Array Type) (G3F-TC4A:TC4ARD, G4F- TC2A/G6F-TC2A:TC2ARD) ∙∙∙∙∙∙∙∙∙∙4-3
4.2.3 Module Reading (Stand-alone Type) (G3F-TC4A : TC4RD, G4F-TC2A/G6F-TC2A:TC2RD) ∙∙∙∙4-4
4.3 Remote Function Block∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙4-5
4.3.1 Module Initialization (G3F-TC4A:TCR4INI, G4F-TC2A:TCR2INI, G6F-TC2A:TCR62INI) ∙∙∙∙∙∙4-5
4.3.2 Module Reading (Array Type)
(G3F-TC4A:TCR4RD, G4F-TC2A:TCR2RD, G6F-TC2A:TCR62RD) ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4-6
4.4 Errors Indicated During Execution Of Function Block ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙4-7
4.4.1 Errors Indicated by the Output Variable,STAT ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4-7
4.4.2 Errors Indicated by the Output Variable,ALM_CODE in the array type temperature Converstion
value reading function block(G3F-TC4A:TC4ARD,TCR4RD,G4F-TC2A:TC2ARD,TCR2RD G6F-
TC2A:TC2ARD,TCR62RD)∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4-7
Chapter 5. PROGRAMMING
5.1 A Program for Converting a Detected Temperature Value(°
°°
°C) into
Fahrenheit (°
°°
°F) and Outputting as a BCD Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙5-1
5.2 A Program for Magnitude Comparison of a Detected Temperature Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙5-6
5.3 A Program Used When Mounting a Thermocouple Input Module
on the Remote I/O Station ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 5-9
Chapter 6. BUFFER MEMORY CONFIGURATION AND FUNCTIONS
6.1 Buffer Memory Configuration ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-1
6.1.1 G3F-TC4A Buffer Memory ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-1
6.1.2 G4F-TC2A/G6F-TC2A Buffer Memory ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-3
6.2 Buffer Memory Functions ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-4
6.2.1 Specifying Channel Enable/Disable
(G3F-TC4A : Address 0, G4F-TC2A/G6F-TC2A : Address 0) ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-4
6.2.2 Specifying the Type Of Thermocouple
(G3F-TC4A : Address 1 To 16, G4F-TC2A G6F-TC2A : Address 1 to 4) ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 6-4
6.2.3 Temperature Conversion Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-5
6.2.4 Digital Conversion Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 6-5
6.2.5 Error Code ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 6-6
6.2.6 Setting SET Data (G3F-TC4A : Address 65, G4F-TC2A G6F-TC2A : Address 17) ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-6

6.2.7 Information on Run Channel (G3F-TC4A : Address 66, G4F-TC2A/G6F-TC2A : Address 18)∙∙∙6-7
6.2.8 Information on Thermocouple Type Specification Error
(G3F-TC4A : Address 67, G4F-TC2A /G6F-TC2A : Address 19) ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6-7
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-TC4A ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙8-1
8.1.2 G4F-TC2A ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙8-2
8.2 Application Programming ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙8-3
8.2.1 A Program for Conversing a Detected Temperature Value(°C)
into Fahrenheit (°F) and Outputting as a BCD Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 8-3
8.2.2 A Program for Magnitude Comparison of a Detected Temperature Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 8-5
8.2.3 A Program Used When Mounting a Thermocouple Input Module
on the Remote I/O Station ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙8-7
Chapter 9. TROUBLESHOOTING
9.1 Errors Indicated by Run LED Flickering∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9-1
9.2 Troubleshooting Procedure ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙9-1
9.2.1 RUN LED Flickering∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9-1
9.2.2 RUN LED Off∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9-2
9.2.3 Temperature Conversion Value Fluctuates Excessively ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9-2
9.2.4 Input Value of the Thermocouple does not
Correspond to the Detected Temperature Value ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙9-3
9.2.5 The LED Display of G3F-TC4A Indicates Error ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9-4
9.2.6 Thermocouple Input Module Hardware Defect ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9-4
Chapter 10. DIMENSIONS
10.1 G3F-TC4A Dimensions ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 10-1
10.2 G4F-TC2A Dimensions ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 10-2

10.3 G6F-TC2A Dimensions ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 10-3
●Appendix
APPENDIX 1
1.1 Thermoelectromotive Force Tables ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ A-1
1.2 Thermocouple ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ A-5
1.2.1 Normal and Overheat Temperature Limits ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙A-5
1.2.2 Temperature Tolerances ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ A-6
1.3 Compensating Wire ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ A-7
1.3.1 Types and Specifications of Compensating Wire ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ A-7

Chapter 1. INTRODUCTION
1 - 1
Chapter 1. INTRODUCTION
This manual is a learning and reference guide for the G3F-TC4A , G4F-TC2A and G6F-TC2A. The G3F-TC4A is a
thermocouple input module used with the CPU of GLOFA GM1/2/3 series and MASTER-K 1000S series .The
G4F-TC2A is used with the CPU of GM4 series and K300S series The G6F-TC2A is used with the CPU of GM6
series and K200S series. Hereafter, the three modules called thermocouple input module. The thermocouple input
module converts a temperature input by a thermocouple (Type K, J, E, T, B, R or S) into a signed 16-bit digital
binary data and outputs it.
1.1 Features
Temperature
Data
Buffer memory
temperature
conversion value
▶
▶▶
▶The thermocouple input module has following features.
1) With direct connection of one of seven types of thermocouple to the thermocouple input module, a
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) 16 point (G3F-TC4A) or 4-point (G4F-TC2A/G6F-TC2A) of thermocouple can be connected to one module.
4) Disconnection and Out-of-range detection function for every channel are included
5) The thermocouples in accordance with five specifications (KS, JIS, ANSI, DIN, BS) are available.
6) The temperature sensor loaded onto terminal block performs automatic reference junction compensation.
①
②
③

Chapter 1. INTRODUCTION
1 - 2
1.2 Glossary
1.2.1 A - Analog Value
Continuous changeable quantity such as voltage, current, temperature, velocity, pressures and flux is
called an analog quantity. 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 thermocouple input
module.
1.2.2 D - Digital Value
In the Fig.1.2, the number of man can be counted as 0, 1, 2 and 3. A discontinuous changeable
quantity as such is called a digital quantity. On and Off signals can be denoted as a digital value 0 and
1, respectively.
An analog quantity cannot be directly input to the
CPU module for digital processing. Therefore, an
analog value should be converted into a digital
value to be input to the CPU module. In addition,
for external output of an analog quantity, a digital
quantity of the CPU module should be converted
into an analog quantity.
A/D
Conversion
CPU
(Digital
processing)
D/A
Conversion
Analog
-200~-1200℃
400~1800℃
0~1750℃
Analog
0~±10 V
or
4~20 mA
[Fig. 1.3] Processing in the PLC
time
Number of man
[Fig.1.2] Digital Value
Temperature
time
[Fig.1.1] Analog Value

Chapter 1. INTRODUCTION
1 - 3
1.2.3 Compensating Wire
This means a wire used to compensate error (temperature change) by the distance between terminal
of an input thermocouple and input terminal of a thermocouple input module. This has the
thermoelectromotive force characteristics between the two terminals under the temperature of 90 to
150 °C or less.
1.2.4 Thermocouple
If two different metals are joined and two different temperatures are applied to the two junctions, the
temperature difference generates a thermoelectromotive force between them and thermal current flows.
This effect called thermoelectric effect. Thermocouple is a temperature sensor using thermoelectric
effect. The magnitude of a thermoelectric force is determined by the type of junction metals and
temperature difference between two junctions, and the shape and dimensions of metals and
intermediate temperature change do not influence it.
1.2.5 Temperature Conversion Characteristics
The thermoelectromotive force to a temperature of a thermocouple has non-linear characteristics,
therefore, linear processing should be applied to a A/D conversion digital value and it will be output as
a detected temperature value.
1.2.6 Burn-out Detection
If a connected thermocouple or compensating wire has disconnection in some part of them, the internal
burn out circuit measures an out of range-voltage and then the thermocouple input module detects the
disconnection.
1.2.7 Reference Junction Compensation (RJC)
As the thermoelectromotive force table of various specifications has 0°C as its reference, the
difference between the present temperature at measuring point (input terminal) and the reference
temperature (0°C) should be compensated.

Chapter 2 SPECIFICATIONS
2 - 1
Chapter 2. SPECIFICATIONS
2.1 General Specifications
Table 2.1 shows general specifications of the GLOFA GM series and MASTER-K series.
No Items Specifications Standard
1 Operating ambient
tem
p
erature 0 ~ 55℃
2 Storage ambient
tem
p
erature -25 ~ 70℃
3 Operating ambient
humidit
y
5 ~ 95%RH, non-condensing
4 Storage ambient
humidity 5 ~ 95%RH, non-condensing
Occasional vibration
Frequency Acceleration Amplitude Sweep
10≤f∠57 Hz - 0.075 mm
57 ≤f≤150 Hz 9.8 ㎨
{
1G
}
-
Continuos vibration
Frequency Acceleration Amplitude
10≤f∠57 Hz - 0.035 mm
5 Vibration
57≤f≤150 Hz 4.9 ㎨
{
0.5G
}
-
10 times in
each direc-
tion for
X, Y, Z
IEC 61131-2
6 Shocks
*Maximum shock acceleration: 147 ㎨{15G}
*Duration time :11 ms
*Pulse wave: half sine wave pulse( 3 times in each of X, Y and Z directions )
IEC 61131-2
Square wave impulse noise ±1,500 V LGIS
Standard
Electrostatic discharge Voltage :4 kV(contact discharge) IEC 61131-2
IEC1000-4-2
Radiated electromagnetic field 27 ~ 500 MHz, 10 V/m IEC 61131-2
IEC 1000-4-3
Severity
Level
All power
modules
Digital
I/Os
( Ue
≥
24 V)
Digital I/Os
(Ue <24 V)
Analog I/Os
communica-
tion I/Os
7 Noise immunity
Fast transient burst noise
Voltage 2 kV 1 kV 0.25 kV
IEC 61131-2
IEC1000-4-4
8 Operating
atmos
p
here Free from corrosive gases and excessive dust
9 Altitude for use Up to 2,000m
10 Pollution degree 2 or lower
11 Cooling method Self-cooling
[Table 2.1 ] General specifications
REMARK
1) IEC(International Electrotechnical Commission)
: The international civilian organization which produces standards for electrical and electronics industry.
2) Pollution degree
: It indicates a standard of operating ambient pollution level.
The pollution degree 2 means the condition in which normally, only non-conductive pollution occurs.
Occasionally, however, a temporary conductivity caused by condensation shall be expected.

Chapter 2 SPECIFICATIONS
2 - 2
2.2 Performance Specifications
Table 2.2 shows performance specifications of the thermocouple input module.
Specifications
Item G3F-TC4A G4F-TC2A G6F-TC2A
Connectable
thermocouple Type K, J, E, T, B, R or S thermocouple
Digital output
Digital conversion value : 0 to 16,000
Temperature conversion value :
(thermocouple measuring temperature range×10)
Temperature input range
Reference junction com-
pensation Automatic compensation
Burn-out detection Every channel has detected.
Accuracy ±[ Full scale ×0.3 % + 1°C (Reference junction compensation tolerance)]
Maximum conversion
speed 50 ms per channel
Number of temperature
input channel
16 channels per
module 4 channels per module 4 channels per module
Insulation method Photo-coupler insulation between the input terminal and the PLC power supply
(non-insulation between channels)
Connection terminal block 38-point terminal block 20-point terminal block 18-point terminal block
Internal current
consumption +5V : 450 ㎃+5V : 450 ㎃
+5V : 100 ㎃
+15V : 40 ㎃
-15V : 20 ㎃
Weight 640 g 360 g 170 g
[Fig. 2.2] Performance Specifications
Thermo-
couple
type
DIN
Spec.
BS
Spec.
Measuring
temp. range(°C)
Measuring
voltage
range(µV)
K NiCr-Ni NiCr-NiAl -200.0 ~1200.0 -5981~48828
J - Pe-CuNi -200.0 ~800.0 -7890~45498
E - NiCr-CuNi -150.0 ~600.0 -7297~45085
T - Cu-CuNi -200.0 ~400.0 -5602~20869
B - PtRh30-PtRh6 400.0 ~1800.0 786~13585
R - PtRh13-Pt 0.0 ~1750.0 0~21006
S PtRh-Pt PtRh10-Pt 0.0 ~1750.0 0~18612

Chapter 2 SPECIFICATIONS
2 - 3
2.3 Names of Parts and Functions
The following gives names of parts :
2.3.1 G3F-TC4A
The following gives the names and functions of each part of the G3F-TC4A.
No Contents
RUN LED
①It displays the operating status of G3F-TC4A
z On : Normal Operation
z Flickering: Error occurred (For details, refer to
Troubleshooting Sec-
tion 9.1)
z Off : 5 VDC disconnection or the G3F-TC4A
module H/W error
Reference junction com-
pensation device
②
Reference junction compensation for type K, J, E, T, R or S.
②

Chapter 2 SPECIFICATIONS
2 - 4
2.3.2 G4F-TC2A
The following gives the names and functions of each part of the G4F-TC2A.
]
2.3.3 G6F-TC2A
The following gives the names and functions of each part of the G6F-TC2A.
G6F
G6FG6F
G6F
-
--
-
TC2A
TC2ATC2A
TC2A
RJ
G6F-TC2A
INPUT
TYPE:K,J,
E,T,R,S,B
FG
RUN
+
-
CH1
+
-
CH0
+
-
CH2
+
-
CH3
①
②
No Contents
RUN LED
①It displays the operating status of G6F-TC2A
z On : Normal Operation
z Flickering: Error occurred (For details, refer to
Troubleshooting Sec-
tion 9.1)
z Off : 5 VDC disconnection or
the G6F-TC2A module H/W error
Reference junction com-
pensation device
②
Reference junction compensation for type K, J, E, T, R or S.
No Contents
RUN LED
①It displays the operating status of G4F-TC2A
z On : Normal Operation
z Flickering: Error occurred (For details, refer to
Troubleshooting Sec-
tion 9.1)
z Off : 5 VDC disconnection or
the G4F-TC2A module H/W error
Reference junction com-
pensation device
②
Reference junction compensation for type K, J, E, T, R or S.
①
②

Chapter 2 SPECIFICATIONS
2 - 5
2.4 I/O Conversion Characteristics
The temperature that the thermocouple detected is input to each channel as a thermoelectromotive force.
Every channel is scanned at every measuring cycle and each input voltage is output as a temperature
conversion value through A/D conversion.
2.4.1 Temperature Conversion Characteristics
The thermocouple input module performs A/D conversion of the non-linear characteristic thermo-
couple input value and outputs the linear-processed temperature conversion value.
The following Fig. 2.1 shows an example of characteristics of the temperature conversion value to
the thermocouple input value.
[Fig. 2.1] Temperature conversion characteristics
2.4.2 Conversion Speed
The conversion speed of the thermocouple input module is 50 ms per channel and its processing is
processed sequentially, that is, one channel is processed and then another channel is processed.
Measuring cycle = 50 ms×(the number of conversion enabled channels)
Example) When 10 channels are used in the G3F-TC4A
Measuring cycle = 50 ms×10 = 500 ms
That is, at every interval of 500ms, every thermocouple input value of every channel is
A/D converted and output as a temperature conversion value
Characteristics between linearized
temperature and thermoelectromotive force
℃

Chapter 2 SPECIFICATIONS
2 - 6
2.4.3 Accuracy
The accuracy of the thermocouple input module is within ±0.3 % of all of the measuring tempera-
ture range and error (±1°C) from reference junction compensation is added.
Example) When a thermocouple type K is used, the detected temperature values to temperatures
–200°C, 500°C and 1200°C are as below.
•Overall measuring temperature range of the K type: 1400°C (-200.0°C to 1200.0°C)
•Accuracy of the K type: 1400°C×±0.003 = ±4.2°C
•Accuracy including the error of reference junction compensation : 4.2 ±1 = ±5.2°C
•Temperature conversion range : - 205.2 °C to – 194.8 °C when –200°C
494.8°C to 505.2°C when 500°C
1294.8°C to 1205.2°C when 1200°C
2.4.4 Burn-out Detection
This function detects disconnection of the thermocouple or compensating wire connected to the
thermocouple input module. As shown in the Fig. 2.2, if disconnection occurs in the thermocouple
or compensating wire the internal disconnection detection circuit measures an out-of-range voltage
and occurs disconnection error codes. Disconnection detection function is automatically performed
on every channel.
[Fig. 2.2] Disconnection Detection Area

Chapter 2 SPECIFICATIONS
2 - 7
2.4.5 Displaying Temperature Conversion Value
The detected temperature value converted into through sampling processing of a thermocouple in-
put value times by ten and that is displayed as a digital value, which is called temperature conver-
sion value.
[Example] When a real temperature is 100.5°C
•Detected temperature value : 1005
( Digital value stored in the output variable TEMP of the reading function block.
Digital value stored in the internal memory)
2.4.6 Displaying Digital Value
The thermocouple input module gives a digital value which has been calculated from a temperature
value to be suitable for process control of the PID control module. This value can be used as an in-
put value (Process Value) in the PID control module.
Thermo-
couple type Type K Type J Type E Type T Type B Type R Type S
Overall
measuring
temp. range
14000
(-2000
to
12000)
10000
(-2000
to
8000)
7500
(-1500
to
6000)
6000
(-2000
to
4000)
14000
(4000
to
18000)
17500
(0
to
17500
17500
(0
to
17500)
Minimum
measuring
temperature
-2000 -2000 -1500 -2000 4000 0 0
[Example 1] Digital value when a real temperature is 400°C of thermocouple type J.
[Example 2] Digital value when a real temperature is 700°C of thermocouple type K.
16000
Digital value =
Overallmeasuring
temperature range
(temperature conversion value – minimum measuring temperature)
16000
Digital value =
10000
= 9600
[4000-(-2000)]
16000
Digital value =
14000
= 10285.71428571 (round off at first digit of fraction)
= 10268
[7000-(-2000)]

Chapter 3. INSTALLATION AND WIRING
3- 1
Chapter 3. INSTALLATION AND WIRING
3.1 Installation
3.1.1 Installation Ambience
This module has high reliability regardless of its installation ambience. But be sure to check the
following for system in higher reliability and stability.
1) Ambience Requirements
Avoid installing this module in locations, which are subjected or exposed to:
- Water leakage and dust a large amount of dust, powder and other conductive power, oil mist, salt, of
organic solvent exists.
- Mechanical vibrations of impacts are transmitted directly to the module body.
- Direct sunlight.
- Dew condensation due to sudden temperature change.
- High or low temperatures (outside the range of 0 to 55 °C)
2) Installing and Wiring.
- During wiring or other work do not allow any wire scraps to enter into it.
- Install it on locations that are convenient for operation.
- Make sure that it is not located near high voltage equipment located..
- Make sure that the distance from the walls of duct and external equipment be 50 mm or more.
- Be sure to be grounded to locations that have good ambient noise immunity.
3.1.2 Handling Precautions
▶From unpacking to installing the thermocouple input module, be sure to check the following:
1) Do not drop it off, and make sure that strong impacts should not be applied.
2) Do not dismount printed circuit boards from the case. It can cause malfunctions.
3) During wiring, be sure to check any foreign matter like wire scraps should not enter into the upper
side of the module, and in the event that foreign matter entered into it, always eliminate it.
4) Be sure to disconnect electrical power before mounting or dismounting the module.

Chapter 3. INSTALLATION AND WIRING
3- 2
3.2 Wiring
3.2.1 Wiring Precautions
1) Be sure to use compensating wire for sensor input wire and connect shield wire to the terminal FG
and ground.
2) Be sure to separate the external input signal of the temperature conversion module from an
alternating current so that surge or induction noise generated from the alternating current could not
effect.
3) When wiring, locating this unit too near from high temperature generating devices or materials or
contacting it with the material like oil can cause short-circuit and occur damage or disorder.
4) When wiring to the terminal block, wiring with high-pressure wire or power supply wire can cause
flow inhibition and cause disorder or malfunction.
3.2.2 Wiring Example
A wiring example of the thermocouple input module is given below.
∗1 ▶Use compensating wire as cable.
∗2 ▶Connect shield wire part of compensating wire to the terminal FG and ground.