TOSHIBA T1-16S User Manual

6F3B0253

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UM-TS01∗∗∗-E031

PROGRAMMABLE CONTROLLER

PROSEC

T1- 16S

USER’S MANUAL

−−−− Basic Hardware and Function −−−−

TOSHIBA CORPORATION

Important Information

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Misuse of this equipment can result in property damage or human injury.
Because controlled system applications vary widely, you should satisfy yourself
as to the acceptability of this equipment for your intended purpose.
In no event will Toshiba Corporation be responsible or liable for either indirect
or consequential dam age or inju ry that may result from the use of this equipment.

No patent liability is assumed by Toshiba Corporation with respect to use of
information, illustrations, circuits, equipment or examples of applic ation in this
publication.

Toshiba Corporation reserves the right to make changes and improvements to this
publication and/or related products at any time without notice. No obligation shall be
incurred other than as noted in this publication.

This publication is copyrighted and contains proprietary material. No part of this book
may be reproduced, stored in a retrieval system, or transmitted, in any form or by any
means  elect rical, mechani c al, photocopying, recording, or otherwise  without
obtaining prior written permission from Toshiba Corp oration.

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© TOSHIB A Corpor ation 2001. A ll rights reserv ed

IBM is a registered tr ademark of International B usi ness Machi nes Corpor ation.
MS-DOS and Windows are registered trademarks of Microsoft Corporation.

Publication number: UM-TS01∗∗∗-E031
1st edition A pril 2001, 2nd edition November 2001

6F3B0253

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CE Marking

The Programmable Controller PROSEC T1-16S (hereafter called T1-16S) complies with the
requirements of the EMC Directive 89/336/EEC and Low Voltage Directive 72/23/EEC under the
condition of use according to the instructions described in this manual.
The conte nts of the conformity are sho wn below .

Application of EMC : 89/336/EEC (as amended by 91/263/EEC and 92/31/EEC)
Council Directive LVD : 72/23/EEC (as amended by 93/68/EEC)

Manufacture’s Name : Toshiba Corporation,

Fuchu Operations-Social Infrastructure Systems

Address : 1, Toshiba-Cho

Fuchu-shi
TOKYO 183-8511
Japan

declares, that the product

Product Name : Programmable Controller , T1-16S

Model Number : TDR116S6S, TDR116S6C

TDR116S3S, TDR116S3C

conforms to the following Product Specifications:

EMC
Radiated Interference : EN 55011 Group 1 Class A
Mains Interference : EN 55011 Group 1 Class A
Radiated Susceptibility : ENV50140
Conducted RFI Susceptibility : ENV50141, IEC100-4-6.
Electrostatic Discharge : IEC1000-4-2
Electrical Fast Transient : IEC1000-4-4

LVD : EN61131-2:1995 3.10 Dielectric Properties

4. Mechanical Requirements

Supplementary information :

(1) Included Handy Programmer THP911A*S.

(2) Included each type of associated input/output unit in a typical configuration.
(3) Product must be installed in accordance with manufacturers instructions

Basic Hardware and Function

1

6F3B0253

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UL/c-UL Listing

The Programmable Controller PROSEC T1-16S (hereafter called T1-16S) is UL/c-UL listed as
shown below.

UL and c-UL Listing

File Number : E95637
Product Na me : Programmable Controller , T1-16S
Product Covered : Main Unit

TDR116S6S, TDR116S6C,
TDR116S3S, TDR116S3C

I/O module

TDI116M*S, TDD116M*S, TDO116M*S,
TAD121M*S, TAD131M*S, TDA121M*S, TDA131M*S,
TFR112M*S

Peripherals

TRM102**S, TCU111**S, THP911A*S

UL and c-UL Listing For Use in Hazardous Locations

File Number : E184034
Product Na me : Programmable Controller , T1-16S
Product Covered : Main Unit

TDR116S6S, TDR116S6C

Locations Class : Class I, Division 2, Groups A, B, C, D

Important Notice : 1. THIS EQU I PMENT IS S U ITABLE F OR USE I N CLASS I,

DIVISION 2, GROUPS A, B, C, D OR NON-HAZARDOUS
LOCATIONS ONLY.

2. WARNING - EXPLOSION HAZARD - SUBSTITUTION OF
COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I,
DIVISION 2.

3. WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT
EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF
OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.

T1-16S User’s Manual

2

Safety Precautions

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This manual is prepared for users of Toshiba’s Programmable Controller T1-16S.
Read this manual thoroughly before using the T1-16S. Also, keep this manual and related
manuals so that you can read them anytime while the T1-16S is in operation.

General Information

1. The T1-16S has been designed and manufactured for use in an industrial
environment. However, the T1-16S is not intended to be used for systems which may
endanger human life. Consult Toshiba if you intend to use the T1-16S for a special
application, such as transportation machines, medical apparatus, aviation and space
systems, nuclear controls, submarine syste ms, etc.

2. The T1-16S has been manufactured under strict qualit y control. However, to keep
safety of overall automated system, fail-safe systems should be considered outside
the T1-16S.

3. In installation, wiring, operation and maintenance of the T1-16S, it is assumed that the
users have general knowledg e of industrial electric control systems.
If this product is handled or operated improperly, electric al shock , fire o r da m age to
this product could result.

4. This manual has been written for users who are familiar with Programmable
Controllers and industrial control equipment. Contact Toshiba if you have any
questions about this manual.

5. Sample programs and circuits described in this manual are provided for explaining the
operations and applications of the T1-16S. You should test completely if you use them
as a part of your application system.

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Hazard Classifications

In this manual, the following two hazard classifications are used to explain the safety
precautions.

!

WARNING

!

CAUTION

Even a precaution is classified as CAUTION, it may cause serious results depending on
the situation. Observe all the safety precautions described on this manual.

Indicates a potentially hazardous situation which, if not avoided, could
result in death o r serious injury.

Indicates a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury. It may also be used to alert

against unsafe practices.

Basic Hardware and Function

3

Safety Precautions

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Installation:

!

CAUTION

1. Excess temperature, humidity, vibration, shocks, or dusty and corrosive gas
environment can cause electrical shock, fire or malfunction. Install and use the T1­16S and related equipment in the environment described in this manual.

2. Improper installation directions or insufficient installation can cause fire or the units
to drop. Install the T1-16S and related equipment in accordance with the instructions
described in this manual.

3. Turn off power before installing or removing any units, modules, racks, terminal
blocks or battery. Failure to do so can cause electrical shock or damage to the T1­16S and related equipment.

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4. Entering wire scra ps or other f o reign debris into t o the T1 -1 6S and related
equipment can cause fire or malfunction. Pay attention to prevent entering them into
the T1-16S and related equipment during installation and wiring.

5. Turn off power immediately if the T1-16S or related equipment is emitting smoke or
odor. Operation under such situation can cause fire or electrical shock. Also
unauthorized repairing will cause fire or serious accidents. Do not a ttemp t to repair.
Contact Toshiba for repairing.

Wiring:

!

CAUTION

1. Turn off power before wiring to minimize the risk of electrical shock .

2. Exposed conductive parts of wire can cause electrical shock. Use crimp-style
terminals with insulating sheath or insulating tape to cover the conductive parts. Also
close the terminal covers securely on the terminal blocks when wiring has been
completed.

3. Operation without grounding may cause electrical shock or malfunction. Connect the
ground terminal on the T1-16S to the system ground.

4. Applying excess power voltage to the T1-16S can cause explosion or fire. Apply
power of the specified ratings described in the manual.

5. Improper wiring can cause fire, electrical shock or malfunction. Observe local
regulations on wiring and grounding.

T1-16S User’s Manual

4

Safety Precautions

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Operation:

!

WARNING

1. Configure emergency stop and safety interlocking circuits outside the T1-16 S.
Otherwise, malfunction of the T1-16S can cause injury or serious accidents.

!

CAUTION

2. Operate the T1-16S and the related modules with closing the terminal covers. Keep
hands away from terminals while power on, to avoid the risk of electrical shock.

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3. When you attempt to perform force outputs, RUN/HALT controls, etc. duri ng
operation, carefully check for safety.

4. Turn on power to the T1-16S b e fore turning on power to the loads. Failure to do so
may cause unexpected behavior of the loads.

5. Do not use any modules of the T1-16S for the purpose other than specified. This
can cause electrical shock or injury.

6. Do not modify the T1-16S and related equipment in hardware nor software. This can
cause fire, electrical shock or injury.

7. Configure the external circuit so that the external 24 Vdc power required for
transistor output circuits and power to the loads are switched on/off simultaneously.
Also, turn off power to the loads before turning off power to the T1-16S.

8. Install fuses appropriate to the load current in the external circuits for the outputs.
Failure to do so can cause fire in case of load over-current.

9. Check for proper connections on wires, connectors and modules. Insufficient contact
can cause malfunction or damage to the T1-16S and related equipment.

Basic Hardware and Function

5

Safety Precautions

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Maintenance:

!

CAUTION

1. Turn off power before removing or replacing units, modules, terminal blocks or wires.
Failure to do so can cause electrical shock or damage to the T1-16S and related
equipment.

2. When you remove both input and output terminal blocks with wires for maintenance
purpose, pay attention to prevent inserting them upside down.

3. Touch a grounded metal part to discharge the static electricity on your body before
touching the equipment.

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4. Otherwise, charged static electricity on your body can cause malfunction or failure.

5. Do not disassemble the T1-16S because there are hazardous voltage parts inside.

6. Perform daily checks, periodical checks and cleaning to maintain the system in
normal condition and to prevent unnecessary troubles.

7. Check by referring “Troubleshooting” section of this manual when operating
improperly. Contact Toshiba for repairing if the T1-16S or related equipment is failed.
Toshiba will not guarantee proper operation nor safety for unauthorized repairing.

8. The contact relia b ility of the output relays will reduce if the switching exceeds the
specified life. Replace the unit or module if exceeded.

9. The battery used in T1-16S may present a risk of fire of chemical burn if mistreated.
Do not recharge, disassemble, heat above 100ºC (212ºF), or incinerate.

10. Replace battery with CR2032 only. Use of another battery may present a risk of fire
or explosi on.

11. Dispose of used battery promptly. Keep away from children. Do not disassemble
and do not dispose of in fire.

T1-16S User’s Manual

6

Safety Label

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The safety label as shown on the right is
attached to the power terminal of the
T1-16S.

Remove the mount paper before wiring.
Peel off the label from the mount paper

and stick it near the power terminals
where it can be r eadily seen.

Contact Toshiba if the label is damaged.

Safety Precautions

CAUTION

!

Do not touch ter min al s
while power on.

Hazardous voltage can shock, burn or cause death.
Do not touch terminals while power on.
Read related manual thoroughly for safety.
Stick this seal on unit or near unit.

Take off this sheet before wiring.

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Basic Hardware and Function

7

About This Manual

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About This Manual

This manual has been prepared for first-time users of Toshiba’s Programmable Controller
T1-16S to enable a full understanding of the configuration of the equipment, and to
enable the user to obtain the maximum benefits o f the equipment.

This manual introduces the T1-16S, and explains the system configuration,
specifications, in stallation and wiring for T1-16S’s basic hardware. This manual provides
the information for designing T1-16S user program, such as the internal operation,
memory configuration, I/O allocation and programming instructions. Information for
maintenance and troubleshooting are also provided in this manual.

The T1-16S’s computer link function and T1-16S’s multi-purpose communication
functions are covered by the separate manual. Read the T1-16S User’s Manual ­Communication Function - for details.

Inside This Manual

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This manual consists of 10 main sections and an appendix.
Section 1 outlines the T1-16S configuration. To fully understand the T1-16S, it is

important to read this section carefully. Sections 2, to 4 describe the hardware used in
designin g ex t ernal circuits and panels. Sections 5 to 7 are mainly concerned with
software . S ection 8 exp la in s the T1-16S’s special I/O functions. S ec ti ons 9 and 10
describe the maintenance procedure for the T1-16S, to ensure safe operation and long
service life .

Related Manuals

The following related manuals are available for T1-16S. Besides this manual, read the
following manuals for your better understanding.

T1-16S User’s Manual

- Basic Hardware and Function - (this manual)

- I/O Modules -

- Communication Function ­T-Series Handy Pro g r ammer (H P911) Op erat ion Man ual
T-Series Program Development System (T-PDS) User’s Manual

UM-TS01∗∗∗-E031
UM-TS01∗∗∗-E034
UM-TS01∗∗∗-E033
UM-TS03∗∗∗-E025
UM-TS03∗∗∗-E045

8

T1-16S User’s Manual

Terminology

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The following is a list of abbreviations and acronyms used in this manual.

µµµµs microsecond
ASCII American Standard Code For Information Interchange
AWG American Wire Gage
BCC Block Check Code
CCW Counter-Clockwise
CPU Central Proc essing Unit
CW Clockwise
EEPROM Electrically Erasable Programmable Read Only Memory
H hexadecimal (when it appears in front of an alphanumeric string)
I/O Input/Output
LED Light Emitting Diode
LSB Least Significant Bit
ms millisecond
MSB Most Significant Bit
PWM Pulse Width Modulation
RAM Random Access Memory
ROM Read Only Memory
Vac AC voltage
Vdc DC voltage

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About This Manual

Basic Hardware and Function

9

Contents

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Contents

Safety Precau t ions .................................................................................. 3

About This Manual .................................................................................. 8

1. System Configuration .................................................................... 13

1.1 Introducing the T1-16S ................................................................ 14

1.2 Features .............................................................................................. 16

1.3 System configuration .......................................................................... 19

1.4 I/O expansion ...................................................................................... 20

1.5 Components........................................................................................ 21

1.5.1 Basic unit ......................................................................................... 21

1.5.2 I/O modules ...................................................................................... 25

1.5.3 Options ............................................................................................ 26

1.6 Programmer port function .................................................................. 27

1.7 RS-485 port communication function ................................................. 28

1.8 Real-time data link system ................................................................. 32

1.9 Peripheral tools .................................................................................. 33

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2. Specifications .................................................................................. 37

2.1 General specifications ........................................................................ 38

2.2 Functional specifications .................................................................... 40

2.3 I/O specifications ................................................................................ 42

2.4 External dimensions ........................................................................... 46

3. I/O Application Precautions .......................................................... 47

3.1 Application precautions for input signals ............................................ 48

3.2 Application precautions for output signals .......................................... 50

4. Installation and Wiring ................................................................... 53

4.1 Environmental conditions ................................................................... 54

4.2 Installing the unit ................................................................................. 55

4.3 Wiring terminals .................................................................................. 57

4.4 Grounding ........................................................................................... 58

4.5 Power supply wir i ng ............................................................................ 59

4.6 I/O wiring ............................................................................................ 61

T1-16S User’s Manual

10

Contents

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5. Operating System Overview ......................................................... 63

5.1 Operation modes ................................................................................ 64

5.2 About the built-in EEPROM ................................................................ 66

5.3 Scanning ............................................................................................. 69

6. Programming Information ............................................................. 73

6.1 Devices and registers ......................................................................... 74

6.2 Index modification ............................................................................... 86

6.3 Real-time clock/calendar .................................................................... 88

6.4 I/O allocation ....................................................................................... 89

6.5 T1-16S memory mode setting.............................................................. 91

6.6 User program configurati on ................................................................ 92

6.6.1 Main program .................................................................................. 94

6.6.2 Sub-program #1 .............................................................................. 95

6.6.3 Timer interrupt program .................................................................. 95

6.6.4 I/O interrupt programs ..................................................................... 96

6.6.5 Subroutines .................................................................................... 97

6.7 Programming language ...................................................................... 98

6.8 Program executi on sequence ............................................................ 99

6.9 On-line debug support functions ........................................................ 100

6.10 Password protection ........................................................................... 103

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7. Instructions ...................................................................................... 105

7.1 List of instructions .............................................................................. 106

7.2 Instruction specifications .................................................................... 116

8. Special I/O Functi o n s .................................................................... 255

8.1 Special I/O function overview ............................................................. 256

8.2 Variable input filter constant .............................................................. 260

8.3 High speed counter ............................................................................ 261

8.3.1 Single phase up-counter ................................................................. 262

8.3.2 Single phase speed-counter ............................................................ 263

8.3.3 Quadrature bi-pulse counter ............................................................ 265

8.4 Interrupt input function ........................................................................ 268

8.5 Analog setting function ....................................................................... 270

8.6 Pulse output function .......................................................................... 271

8.7 PWM output function .......................................................................... 273

9. Maintenance and Checks .............................................................. 275

9.1 Precautions during operation ............................................................. 276

9.2 Daily checks ........................................................................................ 277

9.3 Periodic checks ................................................................................... 278

9.4 Maintenance parts ............................................................................... 279

9.5 Battery................................................................................................. 280

Basic Hardware and Function

11

Contents

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10. Troubleshooting .............................................................................. 281

10.1 Troubleshooting procedure ................................................................ 282

10.1.1 Power supply check ......................................................................... 283

10.1.2 CPU check ....................................................................................... 284

10.1.3 Program check ................................................................................. 284

10.1.4 Input check ....................................................................................... 285

10.1.5 Output check .................................................................................... 286

10.1.6 Environmental problem .................................................................... 287

10.2 Self-diagnostic items .......................................................................... 288

Appendix ......................................................................................................... 293

A.1 List of models and types ..................................................................... 294

A.2 Instruction index ................................................................................. 295

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T1-16S User’s Manual

12

Section 1

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System Configuration

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1.1 Introducing the T1-16S, 14

1.2 Features, 16

1.3 System configuration, 19

1.4 I/O expansion, 20

1.5 Components, 21

1.6 Computer link system, 27

1.7 T1-16S Communication function, 28

1.8 Real-time data link system, 32

1.9 Peripheral tools, 33

Basic Hardware and Function

13

1. System Configuration

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1.1 Introducing the T1-16S

The T1-16 is compact, block style, high-performance programmable controller with a
range of 16 to 144 input and output points.
The figu re below shows the T1 Series line-up. The T1 Series consists of the total 16
types.

T1 Series T1 T1-16 T1-MDR16
T1-MAR16
T1-MDR16D

T1-28 T1-MDR28
T1-MAR28
T1-MDR28D
T1-40 T1-MDR40
T1-MAR40
T1-MDR40D

T1S T1-16S T1-MDR16SS
T1-MDR16SC
T1-MDR16SSD
T1-MDR16SCD

T1-40S T1-MDR40S
T1-MAR40S
T1-MDR40SD

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I/O points:

The T1 Series are available in five models, T1-16, T1-28, T1-40, T1-40S and T1­16S. Each model has the following I/O points.

T1-16S T1-28 T 1-40 T1-40S

14 points
(12 relay plus

16 points
(14 relay plus 2 solid-state)

Input

Output

T1-16

8 points 14 points 24 points
8 points

(6 relay plus 2 slid-state)

2 slid-state)

Expansion

No Up to 8 I/O

modules.
Total up to

No 2 option cards plus

1 expansion rack or unit.
Total up to 382 points.

144 points.

The T1-16S can expand its I/O points by connecting I/O modules. Up to eight I/O
modules can be connected. If eight 16-point I/O modules are connected to the T1­16S, it can control up to 144 points.

T1-16S User’s Manual

14

6F3B0253

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1. System Configuration

Mem o r y cap acity:

Program memory capacity of th e T1 is 2 k steps. And that of the T1S is 8 k steps.
W hole th e program and a part of data registers are stored in built-in EEPROM.

T1-16/28/40 T1-40S
Memory
Program
capacity
Data capacity

EEPROM
back-up
RAM back-up

(at 25°C)
(at 77°F)

Control functions:

In addition to the basic relay ladder functi ons , the T1/T1S provides functions such as
data operations, arithmetic operations, various functions, etc. Furthermore, its high­speed counter functions, pulse output functions and data communication functions
allow its application to a wide scope of control systems.

Language
Number of
instructions
Subroutines

Execution speed
Real-time
clock/calendar
Communication

RAM (for execution) and EEPROM (for back -up)

2 k steps 8 k steps

(4 k mode or 8 k mode)

Auxiliary relay: 1024 points

Timer: 64 points

Counter: 64 points

Data register: 1024 words

Program and leading 512

words of Data register

Capacitor: 6 hours or more Capacitor: 168 hours

T1-16/28/40 T1-40S

Ladder diagram w ith function block
Basic: 17 types

Function: 76 types
16

(nesting not allowed)

1.4 µs/contact, 2.3 µs/coil, 4.2 µs/transfer, 6.5 µs/addition
No Yes (year, month, day, week, hours,

RS-232C
(programmer port)

Auxiliary relay: 4096 points
Timer: 256 points
Counter: 256 points
Data register: 4096 words
Program and the user specified range of
Data register (0 to 2048 words)

or more

Basic: 21 types
Function: 99 types

256
(up to 3 levels of nesting)

minutes, seconds)
RS-232C (programmer por t),

RS-485 (multi-purpose)

T1-16S

Capacitor: 1 hour
or more
Battery: 2 years
or more

T1-16S

Basic: 21 types
Function: 97 types

Construction:

The T1-16S is a compact, easy-handling block style programmable controller. The
T1-16S has all of the features of a block style controller. In addition, the T1-16S has
modular expandability. The T1-16S provides flexibility into the block style controller.

Series compatibility:

Programming instructions are upward compatible in the T-Series programmable
controllers. The T1/T1S programs can be used for other models of the T-Series, T2,
T2E, T2N, T3 and T3H. Peripheral tools can also be shared.

Basic Hardware and Function

15

1. System Configuration

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1.2 Features

I/O module support:

The T1-16S has an interface for connecting the I/O modules. Up to eight modules
can be connected to the T1-16S.
By using the 16 points I/O module, the T1-16S can control up to 144 I/O points.

Built-in high-speed counter:

Two single-phase or one quadrature (2-phase) pulses can be counted. The
acceptable pulse rate is up to 5 kHz. (DC input type only)

Built-in analog setting adjusters:

Two analog setting adjusters are provided on the T1-16S. This allows operators to
adjust time or other control parameters easily using a screwdriver.

High speed processing:

Sophisticated machine control applications require high speed data manipulations.
The T1-16S is designed to meet these requirements.

• 1.4 µs per contact • 2.3 µs per coil

• 4.2 µs per 16-bit transfer • 6.5 µs per 16-bit addition

The T1-16S also supports interrupt input function (DC input type only). This allows
immediate operation independent of program scan.

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Hi gh performance s oftware:

The T1-16S offers 21 basic ladder instructions and 97 function instructions.
Subroutines, Interrupt functions, Indirect addressing, For/Next loops, Pre-derivative
real PID, etc. are standard on the T1-16S. These functions allow the T1-16S to be
applied to the most demanding control applications.

Battery-less operation:

The T1-16S has a standard built-in EEPROM, permitting operation without need of a
battery. Also, the variable data can be written into and/or read from the EEPROM,
providing completely maintenance-free back-up operation.
This fun ct ion is an impo rt a nt feature f or OEMs, because it can eliminate the need for
changing the battery every few years.
(Optional battery is also available to back-up real-time clock and retentive data)

T1-16S User’s Manual

16

6F3B0253

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1. System Configuration

Pulse output / PWM output:

One point of variable frequency pulses (max. 5 kHz) or variable duty pulses can be
output. These functions can be used to drive a stepping motor or to simulate an
analog output. (DC input type only)

Built-in computer link function:

The T1-16S’s RS-232C programmer port can accept the computer link protocol (data
read/write). This results in easy connection to a higher level computer, an operator
interface unit, etc.
The parity setting of the programmer port can be selected either odd or none. The
none parity mode is provided especially for telephone modem connection. Using
modems, remote programming/monitoring is available.

Real-time control data li nk net wo rk:

By connecting the TOSLINE-F10 remote module (FR112M) to the T1 -16S, high­speed data link network can be established. In this network, upper T-series PLC
model (T2/T2E/T2N or T3/T3H) works as master and up to 16 T1-16Ss can be
connected as remote. Each T1-16S can exchange data with the master through 1
word input and 1 word output. The transmission speed can be selected either 750
kbps or 250 kbps.

Sampling trace f unction:

The sampling trace is the function to collect the user specified data every user
specified timing (minimum every scan), and to display the collected data on the
programmer screen in time chart and/or trend graph format. This function is useful
for checking the input signals changing.

Password protection:

By registering your passwords, four levels of protection is available according to the
security levels required for your application.

Level 4: Reading/writing program and writing data are prohibited
Level 3: Reading/writing program are prohibited
Level 2: Writ ing program is prohibi ted
Level 1: No protection (changing passwords is available only in this level)

Two points of solid-state output:

Each model of the T1-16S has two points of solid-state output (transistors for DC
input type and triacs for AC input type). These solid-state outputs are suitabl e for
frequent switching application.

Basic Hardware and Function

17

1. System Configuration

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DIN rail mounting:

The T1-16S is equipped with brackets for mounting on a standard 35 mm DI N rail.
The T1-16S can be mounted on a DIN rail as well as sc rew mounting.

On-line program changes:

When the T1-16S’s memory mode is set to 4 k steps mode, on-line (in RUN mode)
program changes are available. Furthermore, program writing into the built-in
EEPROM is also available in RUN mode. These functions are useful in program
debugging stage.

Real-time clock/calendar function: (Enhanced model only)

The T1-16S has the real-time-clock/calendar function (year, month, day, day of the
week, hours, minutes, seconds) that can be used for performing scheduled
operations, data gathering with time stamps, etc. To back-up the real-time
clock/calendar data, use of the optional battery is recommended.

RS-485 multi-purpose communication port: (Enhanced model only)

The T1-16S has an RS-485 multi-purpose communication port. Using this port, one
of the following communication modes can be selected.

•••• Computer link mode: T-series computer link protocol can be used in this mode.
Up to 32 T1-16Ss can be connected to a master computer. By using this mode,
MMI/SCADA system can be easily configured.

•••• Dat a link mode: Two PLCs (any combination of T1S, T2E or T2N) can be
directly linked together. This direct link is inexpensive, easily configured and
requires no spec ial programming.

•••• Free ASCII mode: User defined ASCII messages can be transmitted and
received through this port. A terminal, printer, bar-code reader, or other serial
ASCII device can be directly connected.

•••• Inverter connection mode: This mode is specially provided to communicate with
Toshiba Inverters (ASDs) VF-A7/G7/S9 series. By using this function, the T1-16S
can control and monitor the connected Inverters.

6F3B0253

T1-16S User’s Manual

18

1.3 System configuration

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The fo llo win g figure sho ws the T1-16S system configuration .

Peripheral tool

IBM-PC compatible

personal computer

MMI/SCADA

system

1. System Configuration

IBM-PC compatible

personal computer

6F3B0253

Inverter

T-PDS

software

Handy programmer

HP911A

Comput er link fun c t i on

MMI/SCADA

system

RS485 (Standard type only)

T1-16S basic unit

T1-16S

RS232C

I/O modules

8 modules max.

Basic Hardware and Function

19

1. System Configuration

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1.4 I/O expansion

The T1-16S provides I/O expandability by connecting the I/O modules. Up to eight
I/O modules can be connected.

Available I/O modules

DI116M: 16 points DC input
DO116M: 16 points DC output
DD116M: 8 points DC input + 8 points DC output
RO108M: 8 points relay output
AD121M: 1 channel analog input (0 to 5V or 0 to 20mA)
AD131M: 1 channel analog input (-10 to +10V)
DA121M: 1 channel analog output (0 to 20mA)
DA131M: 1 channel analog output (-10 to +10V)
TC111M: 1 channel thermocouple input (type K, J, E, or ±50mV)
FR112M: TOSLINE-F10 remote station

6F3B0253

T1-16S maximum configuration

T1-16S
main unit

Up to 8 I/O modules

NOTE

(1) The 5Vdc power to the I/O modules is supplied from the main unit. The main

unit can supply maximum 1.5A of the 5Vdc power to the I/O modules. Check
the current consumption of each I/O module used. Refer to section 2.1.

(2) The connecting order of the I/O modules is not restricted except TOSLINE-

F10 remote station FR112M. When the FR112M is used, it must be the right
end module.

(3) If more than 8 I/O modules are connected, the T1-16S cannot operate

normally.

T1-16S User’s Manual

20

1.5 Components

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1.5.1 Basic unit

The T1-16S is available in four types as shown in the following table.

Type
T1-MDR16SS
(Enhanced model)
T1-MDR16SC
(Standard model)
T1-MDR16SSD
(Enhanced model)
T1-MDR16SCD
(Standard model)

Link/ Calendar Power supply

100-240 Vac,

Yes

No

Yes

No

50/60 Hz

24 Vdc

6F3B0253

1. System Configuration

Input

8 points - 24 Vdc 6 points - relay,

Output

2 points - transistor

Link terminals

(Enhanced model only)

Programmer

port cover

Battery holder

cover

Power s upply and

input/output terminals

Operati on status LED s

I/O status LEDs (Low side)

Mounting hole

Expantion
connector

I/O status LEDs (High side)

Basic Hardware and Function

21

1. System Configuration

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♦ Behind the programmer port cover

6F3B0253

Programmer port conne ctor

Analog setting adjusters
(V0 and V1)

PRG

V1 V0

H/R

Mode c ontrol switch
(HALT / RUN)

Battery holder
Battery type: CR2032
(Optional)

A tab for battery eject

Power supply terminals:

Connect the power cable and grounding wire. The terminal screw size is M3.

See sections 4.4 and 4.5 for wiring.

Input terminals:

Connect input signal wires. The terminal screw size is M3. See section 2.4 for

details.

Output terminals:

Connect output signal wires. The terminal screw size is M3. See section 2.4 for

details.

T1-16S User’s Manual

22

1. System Configuration

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I/O status LEDs:

Indicates the ON/OFF status of each I/O signal. (color: red)

SW54 setting
value

0 (default)
1
2
3
4
5
6
7
8
9
10
Others

Operation status LEDs:

Indicates the operation status of the T1-16S.

I/O intending for an indication

Basic unit (L: X000-007, H: Y020-027)
I/O module slot 0
I/O module slot 1
I/O module slot 2
I/O module slot 3
I/O module slot 4
I/O module slot 5
I/O module slot 6
I/O module slot 7
TOSLINE-F10 (FR112M), Low 1 word
TOSLINE-F10 (FR112M), High 1 word
Basic unit (L: X000-007, H: Y020-027)

6F3B0253

Note

It indicates these at the
time of only RUN
mode.

FLT
RUN
PWR

PWR
(Power) (green)

RUN (green)

FLT
(Fault) (red)

Mode control switch:

Controls the operation modes of the T1-16S.

H (HALT)

Lit
Not lit
Lit
Blinking HOLD mode
Not lit
Lit
Blinking Hardware error (programmer c annot be connected)
Not lit

When the switch is turned to H (HALT) side, the T1-16S stops

Internal 5 Vdc power is norm al.
Internal 5 Vdc power is not normal.
RUN mode (in operation)

HALT mode or ERROR mode
ERROR mode

Normal

program execution (HALT mode). In this position, RUN/HALT
command from the programmer is disabled.

R (RUN)

When the switch is turned to R (RUN) side, the T1-16S starts
program execution. This is the position during normal operation.
In this positio n, RUN/HALT command f rom the programmer is also
available.

Basic Hardware and Function

23

1. System Configuration

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Analog setting adjusters:

Two analog setting adjusters are provided. The V0 value is stored in SW30 and the

V1 value is stored in SW31. The converted value range is 0 to 1000. Refer to section

8.5 for details of the analog setting function.

Programmer port connector:

Used to connect the programmer cable. The interface is RS-232C. This port c an also

be used for the computer link function. Refer to section 1.6 for more information

about the computer link function.

Expansion connector:

Used to connect the I/O module.

RS-485 port (Enhanced model only):

Used to connect a computer (SCADA system), operator interface unit, other T1-16S,

or many kinds of serial ASCII devices including Toshiba’s Inverter through RS-485

interface. Refer to section 1.7 for more information about the T1-16S’s RS-485 multi-

purpose communication functions.

Mounting holes:

Used to fix the T1-16S on a mounting frame by screws. The mounting holes are

provided at two opposite corners .

DIN rail bracket:

The DIN rail bracket is provided at the rear for mounting the T1-16S on a 35 mm DIN

T1

rail. See section 4.2 for installing the unit.

6F3B0253

Use two M4 screws for mounting. See section 4.2 for
installing the unit.

T1-16S User’s Manual

24

1.5.2 I/O modules

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The T1-16S can connect up to eight I/O modules.

The following 10 types of the I/O modules are available.

For specification details of the I/O modules, refer to the separate manual “T1-16S

User’s Manual − I/O Modules −“.

DI116M
DO116M
DD116M

RO108M
AD121M
AD131M
DA121M
DA131M
TC111M
FR112M

Type

1. System Configuration

Description
16 points input, 24Vdc – 5mA
16 points output, 24Vdc – 100mA
8 points input, 24Vdc - 5mA
+ 8 points output, 24Vdc – 100mA
8 points relay output, 24Vdc/240Vac - 1A
1 channel analog input, 0 to 5V / 0 to 20mA
1 channel analog input, ±10V
1 channel analog output, 0 to 20mA
1 channel analog output, ±10V
1 channel thermo-couple input
TOSLINE-F10 remote station,
1 word input + 1 word output

FR112M

Other I/O modules

6F3B0253

Power supply
Supplied from the
basic unit (5 Vdc)

Expantion connector Expantion connectors

NOTE

(1) If more than 8 I/O modules are connected, T1-16S cannot operate normally.
(2) The TOSLINE-F10 remote station module (FR112M) must be connected at the

right end. Tow or more FR112Ms cannot be used together.

Basic Hardware and Function

25

1. System Configuration

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1.5.3 Options

The following optional items are available.

Item
Cable for
programming tool
Programm er port
connector
Option card I/O
connector
Back-up battery

6F3B0253

Type

CJ105
PT16S

PT15S
PT15F
CR2032 For memory b ack up. (A v ailable on the market.)

For T-PDS, 5 m length
For RS-232C computer link , with 2 m cable

Cable side connector for
DI116M, DO116M, or DD116M

Description

Soldering type
Flat cable type

T1-16S User’s Manual

26

1.6 Programmer port function

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The interface of the T1-16S’s programmer port is RS-232C. Normally this port is
used to connect the programmer. However, this port can also be used for the
computer li nk function.
The computer link is a data communication function between computer or operator
interface unit and the T1-16S. The data in the T1-16S can be read and written by
creating simple communication program on the computer. The computer link protocol
of the T1-16S is published in “T1-16S User’s Manual − Communication Function −”.

Item
Interface
Transmission system
Synchronization
Transmission speed
Transmission distance
Framing

Protocol
Transmission delay option 0 to 300 ms

By using the multi-drop adapter (CU111), multiple T1-16Ss can be connected on an
RS-485 line. The T-series PLC programming software (T-PDS) can also be used in
this configuration.

1. System Configuration

Specifications
Conforms to RS-232C
Half-duplex
Start-stop system (asynchronous)
9600 bps (fixed)
15 m max.

Start bit:
Data bits:
Parity:
Stop bit:
T-series computer link (ASCII )

Programmer (binary)

1 bit
8 bits (fixed)
Odd or none
1 bit (fix ed)

6F3B0253

Operator Interface

RS-232C

C
U

T1-16S

T1-16S

Master Computer

RS-485 (1 km max.)

C
U

T1-16S

Max. 32 T1-16Ss

C
U

T1-16S

Basic Hardware and Function

27

1. System Configuration

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1.7 RS-485 port communication function

The T1-16S enhanced model has an RS-485 multi-purpose communication port.
This port can work independent of the programmer port.
By using this communication port, one of the following four communication modes is
available, computer link mode, data link mode, free ASCII mode, and Inverter
connection mode.
For details of these functions, refer to the separate manual “T1-16S User’s Manual −
Communication Function −”.

Item

Interface
Transmission system Half-duplex
Synchronization
Transmission code
Transmission speed

Transmission
distance
Framing

Protocol

Link configuration

Computer
Conforms to RS-458
Start-stop system (asynchronous)

ASCII/binary ASCII
300, 600, 1200, 2400, 4800, 9600, or
19200 bps
1 km max.

Start bit: 1 bit
Data bits: 7 or 8 bits
Parity: Odd, even, or none
Stop bit: 1 or 2 bits
T-series

computer
link (ASCII),
Programmer
(binary)
1-to-N

link

Free ASCII

User
defined
ASCII
messages

N/A

Inverter

connection

Binary

Inverter VF­A7/G7/S9
binary
protocol

1-to-N

6F3B0253

Data link

Binary
19200 bps
(fixed)

Special

Special

1-to-1

NOTE

T1-16S standard model does not have the RS-485 interface.

T1-16S User’s Manual

28

6F3B0253

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1. System Configuration

Computer link mode

T-series computer link protocol can be used in this mode. A maximum of 32 T1-16Ss
can be connected to a master computer.
By using this mode, all the T1-16S’s data can be accessed by a master computer.
The T-series PLC programming sof t wa re (T-PDS ) can als o be used in this
configuration.

Master Computer

T1-16S

RS-485 (1 km max.)

T1-16S T1-16S

Max. 32 T1-16Ss

T1-16S

Data link mode

Two PLCs (any combination of T1-16S, T2E or T2N) can be directly linked together.
This direct link is inexpensive, easily configured and requires no special
programming. Data registers D0000 to D0031 are used for the data transfer.

T1-16S

Station No. 1

D0000

D0015
D0016

RS-485 (1 km max.)

T1S

T1

Station No. 2

D0000

D0015
D0016

D0031

D0031

Basic Hardware and Function

29

1. System Configuration

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Free ASCII mode

The free ASCII mode is used to connect between the T1-16S and various serial
ASCII devices, such as a micro computer, bar code reader, printer, display, etc.
By using this mode, the T1-16S can work as a communication master. Therefore, the
T1-16S c a n communic ate with other PLCs u s in g the computer link protocol .

T1-16S

6F3B0253

RS-485 (1 km max.)

• Bar-code reader

• ID system

• Weigh scale

• Power meter

• Printer

• Others

T1-16S User’s Manual

30

6F3B0253

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1. System Configuration

Free ASCII mode

The T1-16S's Inverter connection mode is a special function to monitor/control the
Toshiba Inverters (ASDs) VF-A7/G7/S9 through the RS-485 line.
Using this mode, the T1-16S can perform the following functions for the Inverters
connected on the RS-485 line without any special communication program.

• Monitoring − Operating frequency and Terminal status

• Control − Run/Stop/Jog, Forward/Reverse, Frequency reference, etc.

• Parameter read/write

• Broadcast command

T1-16S

RS-485 (1 km max.)

RS485 adapter

888

VF-A7 VF-S9VF-A7

888

888 888

VF-S9

888 888

VF-S9 VF-S9

(Max. 64 Inverters)

Basic Hardware and Function

31

1. System Configuration

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1.8 Real-time data link system
TOSLINE-F10

TOSLINE-F10 is a high speed data transmission system suited for small points I/O
distribution system. By inserting the TOSLINE-F10 remote module (FR112M), the
T1-16S can work as a remote station of the TOSLINE-F10 network. On this network,
the T1-16S sends 1 word data to the master station and receives 1 word data from
the master station.

Item

Topology
Transmission distance
(without repeater)
Transmission speed
Scan transmission
capacity
Scan cycle
Error checking

NOTE

Typical data link configuration

The figu re below s hows the ty pical data link c onfiguration.

(1) Refer to the separate “T1 User’s Manual − Option Card and I/O

Module −“ for details of the TOSLINE-F10 remote card (FR112).

(2) Refer to the separate TOSLINE-F10 User’s Manual for details of

TOSLINE-F10 system specifica t io n s

High speed mode
Bus (terminated at both ends)
500 m max. (total)

750 kbps
512 points (32 words) max.

7 ms/32 words
CRC check

overall TOSLINE-F10 system.

Master

computer

Long distance mode

1 km max. (total)
250 kbps

12 ms/32 words

6F3B0253

T2E

(master)

TOSLINE-F10

T1-16S T1-16S

Operator interface units

T1-16S User’s Manual

32

T2E

(remote)

RI/O RI/O T1-16S

RI/O: remote I/O

1.9 Peripheral tools

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The following peripheral tools are available for the T1-16S.

T-Series Program D e velopment System (T-PDS)

The T-Series Program Development System (T-PDS) is a software which runs on
any IBM-PC compatible personal computers such as Toshiba’s Notebook computers.
The same T-PDS software supports on-line/off-line programming, debugging and
program documentation for all the T-Series programmable controllers T1/T1S,
T2/T2E/T2N, T3/T3H and S2T.

• User-friendly program editor includes cut & paste, address search & replace,
program bloc k move/copy, etc.

• Group programming − part program development by multiple designers and
merging them into a complete program − enhance the software productivity.

• Powerful monitoring, I/O force and data set functions fully support your program
debugging.

• Do c umentat ion of program s wit h commentary makes your maintenance work
easy.

• Remote monitoring/programming via modem (radio/phone) is possible.

The table below s hows t he T-PDS versions that support the T1-16S.

T-PDS for Windows TMW33E1SS Ver 1.0 or later
T-PDS for MS-DOS TMM33I1SS Ver 1.61 or later

*1) The T1-16S can be used with these versions. However, in this case, there are

the following functional limitations.

• The program si z e setting is only available as 2 k. It is set to 4 k mode in the

• Some of the added instructions (MAVE, DFL, HTOA, ATOH) may not be

NOTE

6F3B0253

1. System Configuration

Type Part number Versions avail able for

T1-16S.
edited/monitored. (depending on the version)

The connection cable for the T1-16S is different from that for upper T-Series
PLCs. These cables are supplied separately.
Connection cable for T1-16S ... Type: CJ105, 5 m length
Connection cable for T2/T3 …. Type: CJ905, 5 m length

T1-16/28/40 T1-40S/T1-16S

*1)

*1)

Ver 1.2 or later
Ver 2.1 or later

Basic Hardware and Function

33

1. System Configuration

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T-Series Handy Programmer (HP911A)

The HP911A is a hand-held programmer, that can be used to program the T1-16S
using ladder diagram. Its portability makes it ideal for maintenance use at remote
locations.
The HP911A has the following features.

• The HP911A supports ladder diagram programming of T-Series programmable
controllers T1-16S, T2/T2E/T2N and T3.

• Built-in EEPROM allows program copy between T-Series controllers.

• Two display modes are available,

- Normal: 5 lines and 12 columns

- Zoom: Full device description

• On-line data set and I/O f o rce are useful for system checking.

• Backlit LCD display allows operation in dim light.

6F3B0253

There are two types of the Handy Programmer (HP911) depending on the cable
included with.

Type Part number Cable included with Versions available for T1-16S
HP911A
HP911

THP911A∗S
THP911∗∗S

2 m cable for T1-16S Ver 1.1 or later
2 m cable for the upper

T-series PLCs

Ver 1.1 or later

The T1-16S can be used with the HP911(A). However, there are the following
functional limitations.

• The program si z e setting is only available as 2 k. It is set to 4 k mode in the T1­16S.

• Some of the added instructions (MAVE, DFL, HTOA, ATOH) cannot be
edited/monitored.

NOTE

A 2 m connection cable for the T1-16S (Type: CJ102) is supplied with the
HP911A. The cable for the T2/T3 is available separately. (Type: CJ902, 2 m
length)

T1-16S User’s Manual

34

Program Storage Module (RM102)

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6F3B0253

1. System Configuration

The program storage module (RM102) is an
external memory for storing the T1-16S
program. By using the RM102, program saving
from the T1-16S to the RM102, and program
loading from the RM102 to the T1-16S can be
done without need of a programmer.
Because the RM102 has an EEPROM,
maintenance-free program storage and quick
saving/loading are available.

Multi-drop adapter (CU111)

The T1-16S’s RS-232C programmer port
supports the computer link function.
When two or more T1-16Ss are connected with
a master computer, the multi-drop adapter
(CU111) can be used. (One-to-N configuration)
The CU111 is an RS-232C/RS-485 converter
specially designed for the T1-16S’s
programmer port.

Basic Hardware and Function

35

6F3B0253

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T1-16S User’s Manual

36

Section 2

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Specifications

6F3B0253

2.1 General specifications, 38

2.2 Functional specifications, 40

2.3 I/O specifications, 42

2.4 Ext ernal dimensions, 46

Basic Hardware and Function 37

2. Specifications

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2.1 General specifications

Item T1-16S

Power supply voltage 100 to 240Vac (+10/-15%), 50/60 Hz
Power consumption 45VA or less
Inrush current 50A or less (at 240Vac, cold start)
Output
rating

AC Power type

(Note)
Power supply voltage 24Vdc (+20/-15%)

Power consumption 18W or less
Inrush current 25A or less (at 24Vdc)

DC Power type

5Vdc output rating (Note) 1.5A (for I/O module)

Retentive power interruption 10ms or less
Insulation resistance 10MΩ or more

Withstand voltage 1500Vac - 1 minute
Ambient temperature 0 to 55°C (operation), -20 to 75°C (storage)
Ambient humidity 5 to 95%RH, no condensation
Noise immunity 1000Vp-p/1µs, Conform to EMC Directive 89/336/EEC
Vibration immunity 9.8m/s2 (1g)

Shock immunity 98m/s2 (10g)

Approximate weight 500g

24Vdc
(24Vdc, ±10%)
5Vdc 1.5A (for I/O module)

6F3B0253

0.2A (for external devices and/or for input signals)

(between power terminals and ground terminal)

(for 30 minute s per axis, on 3 mut ually perpendicular axes)

(3 shocks per axis, on 3 mu tually perpendicular axes)

NOTE

(1) 24Vdc service power output is not provided on the DC power supply type.
(2) The maximum output current of the 5Vdc is 1.5A. However there is the following

restrictions, depending on the conditions.

• When HP911 is used:

→ Redused by 0.2A

• When RS-485 port is used:

→ Reduced by 0.1A

(A)

1.5

1.0

5Vdc

• When 24Vdc service power is used:

→ Refer to the right chart.

maximum load current

24Vdc service power

0.2 (A)0.1

38 T1-16S User’s Manual

6F3B0253

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2. Specifications

NOTE

(3) The 5Vdc current consumption of each I/O modules is described below.

Check that the total 5Vdc current consumption is within the limit.

Model Specifications 5Vdc consumer

current
DI116M 16points, 24Vdc-5mA input. 50mA
DO116M 16points, 24Vdc-100mA output. 50mA
DD116M 8points, 24Vdc-5mA input.

8points, 24Vdc-100mA output.
RO108M 8 points, 24Vdc/240Vac – 1A relay output 260mA
AD121M 1ch. 12bit analog input.

(0 to 20mA, 0 to 5V)
AD131M 1ch. 12bit analog input. (±10V) 260mA
DA121M 1ch. 12bit analog output.

(0 to 20mA, 0 to 5V)
DA131M 1ch. 12bit analog output. (±10V) 240mA
TC111M 1ch. 12bit thermo couple input. 400mA
FR112M TOSLINE-F10 remote station. 100mA

50mA

260mA

350mA

Basic Hardware and Function 39

2. Specifications

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2.2 Functional specifications

Item T1-16S

Control method Stored program, cyclic scan system
Scan system Floating scan or constant scan (10 – 200ms, 10ms unit s)
I/O update Batch I/O refresh

Program memory (Note) RAM and EEPROM (no back-up battery required)
Program capac i ty 8K steps

Programming language Ladder diagram with function block
Instructions Basic: 21

Execution speed

Program t ypes

User data

back-up

I/O register 512 points/ 32 words (X/XW, Y/YW)
Auxiliary relay 4096 points/ 256 words (R/RW)
Special r el ay 1024 points/ 64 words (S/S W)
Timer 256 points (T./T)

Counter 256 points (C./C)
Data register 4096 words (D)
Index r egister 3 words (I, J, K)
Capacitor 1 hour (at 25°C)Memory
Battery (option) Max. 2 years.

6F3B0253

(direct I/O instruction available at basic unit’s I/O)

(4K or 8K mode)

Function: 97

1.4µs/contact, 2.3µs/coil,

4.2µs/16-bit transfer, 6.5µs/16-bit addition
1 main program
1 sub-program (initial program)
1 timer interrupt (interval: 5 to 1000ms, 5ms units )
4 I/O interrupt (high-speed counter and interrupt input)
256 subroutines (up to 3 levels of nesting)

64 at 0.01s, 192 at 0.1s

Min. 6 months. (Note)

NOTE

(1) The user program stored in the EEPROM is transferred to the RAM

(2) The data of RAM and calendar IC are backed up by built-in capacitor
(3) When the optional battery is used, replace the battery periodically with

time per day

40 T1-16S User’s Manual

when power is turned on. Therefore, if the program is modified, it is
necessary to issue the EEPROM Write command from the programming
tool. O t herwise, the modified program is over-written by original
EEPROM contents at the next initial load timing.

and optional battery.
refe rrin g to the table below .

Annual average air temperature

Under 30°C (86°F) Over 30°C (86°F)
Over 8 hours 2 years 1 yearOperation
Under 8 hours 1 year 6 months

Functional spec ifications (cont’d)

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Item T1-16S

I/O capacity 16 points (basic)

+128 points (I/O modules)
Input 24Vdc input (8 points)I/O type
Output Relay (6 points) + transistor (2 points)

I/O terminal block Fixed
Real-time clock
/calendar
Special I/O functions
(Note)

Communications
interface

Debug support
function

Yes, ±60 s/month at 25°C

(Enhanced model only)

• High speed counter, 2 single or 1 quadrature

• Interrupt input, 2 points

• Adjustable analog register, 2 points

• Pulse output, CW+CCW or pulse+direction

• PWM output

• 1 port RS-232C (programmer port)

- for Programmer or Computer link connection

• 1 port RS-485 (Enhanced model only)

- Programmer

- Computer link

- Data link

- Free ASCII

• TOSLINE-F1 0 remote (by I/O module)

• Sampling trace, 8 devices and 3 register - 256 times

• On-line programming

• On-line EEPROM write

6F3B0253

2. Specifications

NOTE

(1) High-speed counter, interrupt input, pulse output and PWM output are

available in the DC input types.
(2) High-speed counter and interrupt input cannot be used simultaneously.
(3) Pulse output and PWM output cannot be used simultaneously.

Basic Hardware and Function 41

2. Specifications

0 C

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2.3 I/O specifications

• Input specifications

Input type DC input, current source/sink
Number of input points 8 points (8 points/common)
Rated input voltage 24Vdc, +10/-15 %
Rated input current 7mA (at 24Vdc)
Min. ON voltage 15V dc
Max. O FF voltage 5Vdc
ON delay time 0 to 15ms
OFF delay time 0 to 15ms
Input signal display LED display for all points, lit at ON, internal logic

External connecti on Removable termi nal block, M3
Withstand voltage 1500Vac, 1 minute

Internal c i r cuit

6F3B0253

Item Specifications

*1
*1

side

(between internal and external circuits)

LED

7

Internal cir cuit

*1: User can change the input ON/OFF delay time of the DC input.

The setting range is 0 to 15ms. (Default value = 10ms) Refer to section 8.2.

42 T1-16S User’s Manual

• Input signal connections

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T1-16S

6F3B0253

2. Specifications

DC IN

Service power

24Vdc

NOTE

L

C

−

NCN

+ 2422206

31

0

42

Vin

75

C C

2321

26

2725

24Vdc

24Vdc input

The 24Vdc service power output is not provided on the DC power supply type.

Basic Hardware and Function 43

2. Specifications

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• Output specifications

Output ty pe Relay contact, no rmally open Transistor output, curr ent sink
Number of output points 6 points

Rated load voltage 240Vac/24Vdc (max.) 24Vdc
Range of load voltage Max. 264Vac/125Vdc 20.0 - 28.0Vdc
Maximum l oad current 2A /poi nt (resisti ve),

ON resistance
Voltage drop at ON

Leakage current at OFF None 0.1mA or less
Minim um load 5Vdc, 10mA

ON delay time 10ms or less 0.1ms or less
OFF del ay t ime 10ms or less 0.1m s or l ess
Input signal display LED display f or all points, lit at ON, i nternal logic side
External connecti on Removable terminal bl oc k, M3
Withstand voltage 1500Vac, 1 minute (between internal and external circuits)
Internal c i r cuit

Relay output Transistor output

(6 pts/common)

4A/common
50mΩ or less

(init i al v al ue)

(50mW)

LED

6F3B0253

SpecificationsItem

2 points
(2 poi nts/ common)

0.5A/point (resistive)

−

−

0.5V or less

−

LED

Ry

Internal c ircu it

*1: The switching life of the relay output is as follows.

20 million times or more (mechanical)
100 thousand times or more (electrical, at maximum rated voltage and current)

22

27

C

Internal circuit

Vin
20
21

C

44 T1-16S User’s Manual

• Output signal connections

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T1-16S

6F3B0253

2. Specifications

L

N

Service power

24Vdc

C

−

NC

+ 24 22 20 6

Transister output

DC OUT

3 1

0

4 2

24Vdc

Vin

7 5

C

+

RELAY OUT

23 21

26

27 25

C

PS

240Vac/24Vdc (max.)

PS

Relay output

Basic Hardware and Function 45

2. Specifications

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2.4 External dimensions

♦ T1-16S

6F3B0253

♦ I/O module

[mm]

[mm]

46 T1-16S User’s Manual

Section 3

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I/O Application Precautions

6F3B0253

3.1 Application precautions for input signals, 48

3.2 Application precautions for output signals, 50

Basic Hardware and Function 47

3. I/O Application Precautions

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3.1 Application precautions for input signals

6F3B0253

!

WARNING

Configure emergency stop and safety interlocking circuits outside the
T1-16S. Otherwise, malfunction of the T1-16S can cause injury or serious
accidents.

(1) Minimum ON/OFF time of the input signal

The following conditions guarantee correct reading of the ON/OFF state of the input
signal:
Input ON time: ON delay time + the t ime for one scan
Input OFF time: OFF delay time + the time for one scan
The ON and OFF times of the input signals must be longer than these intervals.

(2) Increasing the contact current

The reliab ilit y of some contacts cannot be guaranteed by the specified input current. In
this case, install an external bleeder resistor to increase the contact current.

Bleeder resistor

I

I

V

R

1

I2

T1
input
circuit

V

R

=

−

II

Wattage

1

2

V

>×

3

R

(3) Connecting transistor output device

An example of connecting a transistor output device to T1-16S’s input circuit is shown
below.

For NPN open collector

•

48 T1-16S User’s Manual

For PNP open collector

•

C

T1
input
circuit

C

T1
input
circuit

3. I/O Application Precautions

circuit

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(4) Countermeasures against leakage current

When a switch with an LED or sensor is used, the input sometimes cannot recognize
that the switch is off due to the current leakage. In this case, install a bleeder resistor
to reduce input impedance.

6F3B0253

LE

Bleeder resistor

T1
input

C

Select a bleeder resistor according to the following criteria:
(a) The voltage between the input terminals must be lower than the OFF voltage

when the sensor is switched off.
(b) The current must be within the allowable range when the sensor is switched on.
(c) Calculate the wattage of the bleeder resistor by multiplying the current when the

sensor is switched on times three.

Basic Hardware and Function 49

3. I/O Application Precautions

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3.2 Application precautions for output signals

6F3B0253

!

WARNING

Configure emergency stop and safety interlocking circuits outside the
T1-16S. Otherwise, malfunction of the T1-16S can cause injury or serious
accidents

!

CAUTION

1. Turn on power to the T1-16S before turning on power to the loads.
Failure to do so may cause unexpected behavior of the loads.

2. Con figure the exter nal circuit s o that the external 24Vdc power required
for the transistor output circuits and power to the loads are switched
on/off simultaneously. Also, turn off power to the loads before turning off
power to the T1-16S.

3. Install fuses appropriate to the load current in the external circuits for the
outputs. Failure to do so can cause fire in case of load over-current.

(1) 2 points of solid-state output

The leading 2 points of output (Y020 and Y021) are solid-state outputs, transistors on
the DC input types.
These solid-state outputs are suited for frequent switching applications.
Note that the specifications of the solid-state outputs and other outputs (relays) are
different.

(2) Switching life of output relays

Expected relay life is more than 100,000 electrical cycles at rated maximum voltage
and current, and more than 20 million mechanical cycles. The expected contact life
(electrical cycles) is shown on the table below.

Load

voltage
AC 110Vac, 2A 340 DC 24Vdc, 2A 280
load

COSφ = 1
110Vac, 2A 150 24Vdc, 2A 60

COSφ = 0.7
220Vac, 2A 220 48Vdc, 1A 200

COSφ = 1
220Vac, 2A 100 L/R = 15 ms 0.2A 420

COSφ = 0.7

Load

current

Expected life

(thousand)

Load

voltage

Load

current

Expected life

(thousand)

1A 720 load L/R = 0 ms 1A 600

0.5A 1,600 0.5A 1,300
1A 320 L/R = 15 ms 1A 150

0.5A 700 0.5A 350
1A 500 L/R = 0 ms 0.5A 420

0.5A 1,100 48Vdc, 0.5A 130
1A 210 110Vdc, 0.5A 200

0.5A 460 L/R = 0 ms 0.2A 550

110Vdc, 0.2A 150
L/R = 15 ms 0.1A 350

50 T1-16S User’s Manual

3. I/O Application Precautions

circuit

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(3) Over-current protection

The output circuit of the T1-16S does not contain protective fuses. Fuses rated for the
output should be provided by the user.

6F3B0253

T1

Load

output

Load

PS

Fuse appropriate to
the common current

(4) Output surge protection

Wh ere an inductiv e load is connected to the output, a relatively high energy transient
voltage will be generated when the relay turns OFF. To prevent the problems caused
by this surge, install a surge absorber in parallel to the inductive load.

Load

T1
output

PS

Surge a bsorber

Surge a bsorber:

• Flywheel diode (for DC output)

Inverse withstand voltage: At least three times that of the power supply
Forward current: Larger than the load current

• Varistor (for AC output)

The voltage rating is 1.2 times the maximum (peak) voltage of the power supply

• CR snubber (for DC or AC output)

R: 0.5 to 1Ω per volt coil voltage
C: 0.5 to 1µF per ampere of coil current (non-polarity capacitor)

Basic Hardware and Function 51

6F3B0253

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52 T1-16S User’s Manual

Section 4

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Installation and Wiring

6F3B0253

4.1 Envir onmental conditions, 54

4.2 Installing the unit, 55

4.3 Wiring terminals, 57

4.4 Grounding, 58

4.5 Power supply wir ing, 59

4.6 I/O wiring, 61

Basic Hardware and Function 53

4. Installation and Wiring

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4.1 Environmental conditions

6F3B0253

!

CAUTION

Excess temperature, humidity, vibration, shocks, or dusty and corrosive
gas environment can cause electrical shock, fire or malfunction.
Install and use the T1-16S and related equipment in the environment
described in this section.

Do not install the T1-16S in the following locations:

• Where the ambient temperature drops below 0°C or ex ceeds 55°C.

• Where the re la t ive humidity drops below 20% or exceeds 90%.

• Where there is condensation due to sudden temperature changes.

• In locations subject to vibration that exceeds tolerance.

• In locations subject to shock that exceeds tolerance.

• Where there are corrosive or flammable gases.

• In locations subject to dust, machining debris or other par ticles.

• In locations exposed to direct sunlight.

Observe the following precautions when installing enclosures in which the T1-16S will
be installed:

• Provide the maximum possible distance from high-voltage or high-power panels.
This distance must be at least 200mm.

• If installing the enclosures in the vicinity of high-frequency equipment, be sure to
correctly ground the enclosures.

• When sharing the channel base with other panels, check for leakage current from
the other panels or equipment.

54 T1-16S User’s Manual

4.2 Installing the unit

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6F3B0253

4. Installation and Wiring

NOTE

!

CAUTION

1. Improper installation directions or insufficient installation can cause
fire or the units to drop. Install the T1-16S and related equipment in
accordance with the instructions described in this section.

2. Turn off power before installing or removing any units, modules,
racks or terminal blocks. Failure to do so can cause electrical shock
or damage to the T1-16S and related equipment.

3. Entering wire scraps or oth e r foreign debris int o t o the T1-1 6S and
related equipment can cause fire or malfunction. Pay attention to
prevent entering them into the T1 and related equipment during
installatio n and wiring.

The T1-16S basic unit and the I/O module come equipped with a bracket at the rear
for mounting on a 35mm D I N rail.

Installation precautions:

• Because the T1-16S is not dust-proof, install it in a dust-proof enclosure.

• Do not install the unit directly above equipment that generates a large amount of

heat, such as a heater, transformer, or large-capacity resistor.

• Do not install the unit within 200mm of high-voltage or high-power cables.

• Allow at leas t 70mm on all sides of the unit for ventilation.

• For safely during maintenance and operation, install the unit as far as possible from

high-voltage or power equipment. Alternatively, keep the unit separate using a
metal plate or similar separator.

• If high-frequency equipment is installed in the enclosure together with the T1-16S,
special attention is required for grounding. See section 4.4.

• B e su re to install th e uni t ver tic ally wit h keeping the power terminals downside. Do
not install the unit horizontally or upside-down for safety reason.

• Use M4 size screws to mount the T1-16S.
(Recommended torque: 1.47N⋅m = 15Kgf⋅cm)

Upward

Mount the T1-16S on a vertical panel.
All other mounting posi tions are not
acceptable.

Basic Hardware and Function 55

4. Installation and Wiring

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Dimensions for screw mounti ng:

6F3B0253

56 T1-16S User’s Manual

4.3 Wiring terminals

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6F3B0253

4. Installation and Wiring

!

CAUTION

1. Turn off power before wiring to minimize the risk of ele c trical shock .

2. Exposed conductive parts of wire can cause electrical shock. Use
crimp-style terminals with insulating sheath or insulating tape to cover
the conductive parts. Also close the terminal covers securely on the
terminal blocks when wiring has been completed.

3. Turn off power before removing or replacing units, modules, terminal
blocks or wires. Failure to do so can cause electrical shock or damage
to the T1-16S and related equipment.

The terminal screw size of the T1-16S is M3. Use crimp-style terminals of 7mm width
or less useable for M3. The terminal block is not removable (fixed).

NOTE

For input and output signal connections, refer to sections 2.4 and 3.

T1-MDR16SS .... AC power supply model T1-MDR16SSD..DC power supply model

RS-485 (Enhanced model only)

RS-485 (Enhanced model onl y)

TXA RXA RXB

TXB TRM SG

MDR16SS

N

NOTE

DC OUT

C

0 L 4 2

3 1

−

+ 24 22 20 6

NC

(1) NC stands for ”no connect”. Do not use the NC terminals for wire

Vin

7 5

C

RELAY OUT DC IN

23 21

27 25

26

C

TXA RXA RXB

TXB TRM SG

MDR16SSD

C

NC

-

NC

NC

0 + 4 2

3 1

relaying or branching.

(2) For the connections of the RS-485 communication port (the upper

terminal block), refer to the separate manual “T1-16S User’s Manual ­Communication Function -.

2

The applicable wire size is 0.3mm

(22 AWG) to 1.25mm2 (16 AWG). The t able below

shows the recommended wire size.

Type of signal Reco mmended wire size
Power 1.25mm2 (16 AWG)
Grounding 1.25mm2 (16 AWG)
I/O signals 0.3mm2 (22 AWG) to 0.75mm2 (18 AWG)

DC OUT

Vin

7 5

C

RELAY OUT DC IN

23 21

27 25

24 22 20 6

26

C

Basic Hardware and Function 57

4. Installation and Wiring

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4.4 Grounding

6F3B0253

!

CAUTION

The optimum method for grounding electronic equipment is to ground it separately
from other high-power systems, and to ground more than one units of electronic
equipment with a single-point ground.
Although the T1-16S has noise immunity to be used in industrial operating conditions,
grounding is important for safety and reliability.

Check the grounding against the following criteria.

1. The T1-16S must not become a path for a ground current. A high-frequency current

2. Equalize the ground potentials when the expansion rack or unit is connected.

3. Do not connect the ground of the T1-16S to that of high-power systems.

4. Do not use a ground that has unstable impedance, such as painted screws, or

1. Turn off power before wiring to minimize the risk of ele c trical shock .

2. Operation without grounding may cause electrical shock or malfunction.
Connect the ground terminal on the T1-16S to the system ground.

is particularly harmful.
Ground the T1-16S and the expansion rack or unit at a single point.

ground subject to vibration.

The grounding marked terminal (see below) is provided on the T1-16S basic unit for
grounding purpose.

In case of the expansion rack is connected to the T1-16S, the rack mounting screw is
used for this purpose.

T1-16S

System ground

2

• 1.25mm
rack/unit with the enclosure grounding bus bar.

• 100Ω or less to ground is required.

(16 AWG) wire should be used to connect the T1-16S and the expansion

Mounting panel

58 T1-16S User’s Manual

4.5 Power supply wiring

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6F3B0253

4. Installation and Wiring

!

CAUTION

Wire the power source to the T1-16S power supply terminals.

1. Turn off power before wiring to minimize the risk of electrical shock.

2. Applying excess power voltage to the T1-16S can cause explosion or
fire. Apply power of the specified ratings described below.

Power source

Line filter

T1-16S

Insulation
transformer

• Power conditions:
AC power suppl y type DC power s upply type

Rated voltage 100 to 240Vac, +10/-15% 24Vdc, +20/-15%
Frequency
Power consumption 45VA or less 18W or less
Retentive power
interruption

2

• 1.25mm

• The power cable should be separated from other cables.

(16 AWG) twisted-pair cable should be used for the power cable.

50/60Hz, ±5%

Continuous operation for less than 10ms

-

Basic Hardware and Function 59

4. Installation and Wiring

-

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Connections of the power supply terminals are shown below.

• AC power supply type

6F3B0253

100 to 240Vac

• DC power supply type

100-240Vac

∼

N

24 Vdc

- +

L

Grounding

+

24Vdc

Grounding

60 T1-16S User’s Manual

4.6 I/O wiring

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6F3B0253

4. Installation and Wiring

!

CAUTION

• Refer to sections 2.4 and 3 for instructions on how to properly wire the I/O

• 0.75mm

• Separate the I/O signal cables from high-power cables by at least 200mm.

• If expansion rack or unit is used, separate the expansion cable from the power and

• It is recommended to separate the input signal cables from output signal cables.

1. Turn off power before wiring to minimize the risk of electrical shock.

2. Exposed conductive parts of wire can cause electrical shock. Use
crimp-style terminals with insulating sheath or insulating tape to cover
the conductive parts. Also close the terminal covers securely on the
terminal blocks when wiring has been completed.

3. Turn off power before removing or replacing units, modules, terminal
blocks or wires. Failure to do so can cause electrical shock or damage
to the T1-16S and related equipment.

terminals.

2

(18 AWG) to 0.3mm2 (22 AWG) wires are recommended for I/O signals.

I/O signal cables by or unit at least 50mm.

T1-16S

Input

signal

Output

signal

200mm
or more

High-power

cable

Basic Hardware and Function 61

6F3B0253

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62 T1-16S User’s Manual

Section 5

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Operating System Overview

6F3B0253

5.1 Operation modes, 64

5.2 About the built-in EEPROM, 66

5.3 Scanning, 69

Basic Hardware and Function 63

5. Operating System Overview

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5.1 Operation modes

The T1-16S has three basic operation modes, the RUN mode, the HALT mode and
the ERROR mode. The T1-16S also has the HOLD and RUN-F modes mainly for
system checking.

RUN: The RUN mode is a normal control-operation mode.

In this mode, the T1-16S reads external signals, executes the user program
stored in the RAM, and outputs signals to the external devices according to
the user program. It is in the RUN mode that the T1-16S performs scans the
user program logic, which is the basic operation of a PLC.
Program changes and EEPROM write are possible while the T1-16S is in
the RUN mode. Refer to section 6.9.

HALT: The HALT mode is a programming mode.

In this mode, user program execution is stopped and all outputs are
switched off.
Program loading into the T1-16S is possible only in the HALT mode.
For the standard T1, program changes and EEPROM write are possible only
when the T1 is in the HALT mode.

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ERROR: The ERROR mode is a shutdown mode as a result of self-diagnosis.

The T1-16S enters the ERROR mode if internal trouble is detected by self­diagnosis. In this mode, program execution is stopped and all outputs are
switched off. The cause of the shutdown can be confirmed by connecting
the programming tool.
To exit from the ERROR mode, execute the Error Reset command from t he
programming tool, or cycle power off and then on again.

HOLD: The HOLD mode is provided mainly for checking the external I/O signals.

In this mode, user program execution is stopped, with input and output
updating is executed. It is therefore possible to suspend program execution
while holding the output state. Moreover, a desired output state can be
established by setting any data by using the programming tool.

RUN-F: The RUN-F mode is a forced RUN mode provided for program checking.

This mode is effective when using the expansion I/Os.
Deferent from the normal RUN mode, the RUN-F mode allows operation
even if the registered I/O modules are not actually mounted.

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5. Operating System Overview

The operation modes are switched by the mode control switch provided on the T1-16S
and the mode control commands issued from the programming tool.

The mode transition conditions are shown below.

(Power ON)

n

o

t

HOLD

RUN

p

p

qs

HALT

r

t

n
o
p

q

r
s
t
u

s

RUN-F

ERROR

Mode control switch is in R (RUN) side.
Mode control switch is in H (HALT) side.
Mode control switch is turned to H (HALT) side, or HALT command is issued from

the programming tool.
Mode control switch is turned to R (RUN) side, or RUN command is issued from

the programming tool.
Force RUN (RUN-F) command is issued from the programming tool.
HOLD command is issued from the programming tool.
HOLD Cancel command is issued from the programming tool.
Error Reset command is issued from the programming tool.

(dotte d line) Error is detected by self-diagnosis.

p

u

NOTE

The commands from the programming tool are available when the mode
control switch is in R (RUN) side.

Basic Hardware and Function 65

5. Operating System Overview

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5.2 About the built-in EEPROM

The T1-16S is equipped with a built-in EEPROM and a RAM as standard features.
The user program is s tored in the EEPROM so that the user program can be
maintained without the need of a battery. A part of the Data register can also be
stored in the EEPROM.
The table below shows the contents stored in the built-in EEPROM.

User program Entire program (8 k steps) and System information
User data User specified number of Data register starting with address 0.

It is set by SW55.
D0000 - Dnnnn

(up to 2048 words)
Setting
information

SW36 - SW 38:

Programmer port settings

SW55:

Number of Data register to be saved in the EEPROM

SW56 - SW 57:

RS-485 port settings

Sampling trace setting information

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T1-16S

The user program and the data stored in the EEPROM are transferred to the RAM
when power is turned on. Subsequent program execution is done based on the RAM
contents. Program editing is also performed on the RAM contents.

Therefore, if the program is modified, it is necessary to issue the EEPROM Write
command from the programming tool. Otherwise, the modified program is over­written by original EEPROM contents when the power is turned off and on again.

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5. Operating System Overview

EEPROM

User program

(8 k steps)

and System info

c

RAM

User program

(8 k steps)

and System info

d

Data register

(0 to 2048 words,

user setting)

Executed when power is turned on (it is called initial load) or EEPR OM Read

c

command is issued from the programming tool. The EEPROM Read is possible
only in the HALT mode.

Data register

(D0000 to Dnnnn,

user setting)

Other dataOther data

The rest of Data

registe r and

other registers

Executed when EEPROM W rite command is issued from the programming tool.

d

It is possible in either HALT or RUN mode. (See Note)

Basic Hardware and Function 67

5. Operating System Overview

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Special register SW55 is used to specify the number of Data registers to be stored in
the EEPROM. The allowable setting value is 0 to 2048.
The table below shows the correspondence between the SW55 value and Data
registers saved in the EEPROM.

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SW55 setting

value

Range of Data registers saved

in EEPROM

Remarks

0 None
1 D0000 only
2 D0000 to D0001
3 D0000 to D0002

::
2047 D0000 to D2046
2048 D0000 to D2047 Default value

Others D0000 to D2047 Regarded as 2048

When the EEPROM Write command is executed, the T1-16S checks the value of
SW55 and saves the Data registers into the EEPROM depending on the SW55 value.
The value of SW55 itself is also saved in the EEPROM.
At the initial load or the EEPROM Read command is executed, the T1-16S checks the
value for SW55 in the EEPROM and transfers the corresponding number of data to
the Data registers of the RAM.

NOTE

(1) The EEPROM has the life limit for writing. It is 100,000 times. Pay

attention not to exceed the limit. If the number of execution of
EEPROM Write command exceeds 100,000 times, EEPROM alarm
flag (S007) comes ON.

(2) Even in RUN mode, the EEPROM Write command can be executed.

However, in this cas e , only the user program is written into t he
EEPROM. (D register data and setting information are not saved.)

(3) The data in the EEPROM can also be read or written by using the

program instruction (FUN236 XFER instruction).

(4) When the EEPROM writing is executed by the XFER instruction in the

user program, T1-16S does not update the internal EEPROM write
counts. Therefore the EEPROM alarm flag (S007) will not correspond
to this operation. Pay attention to the life limit of the EEPROM.

68 T1-16S User’s Manual

5.3 Scanning

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The flo wch art below shows th e basic int ernal operations performed by the T1-16S
from the time power is turned on through program execution. As the diagram shows,
executing a program consists of continuous scanning operations. One scan is a cycle
starting with the self-diagnosis and ending with the completion of peripheral support.

Power ON

Hardware check

Initial load

Register/device

initialization

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5. Operating System Overview

Power-up
Initialization
(approx. 1 s)

Scan

Self-diagnosis

Mode

control

RUN mode

Register/device

initialization

Program chec k

I/O update

Timer update

User program

execution

HALT mode

At the first
scan

At the first
scan

Scan cycle

Peripheral

support

Basic Hardware and Function 69

5. Operating System Overview

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Hardware check:

Performs checking and initialization of the system ROM, the system RAM and the
peripheral LSIs.

Initial load:

Transfers the user program and user data from the EEPROM to the RAM. (Refer to
section 5.2)

Register/device initialization:

Initializes registers and devices as shown below.

Register/device Initialization
External input (X/XW) Forced inputs are retained. Others are cleared to 0.
External output (Y/YW) Forced coil devices are retained. Others are cleared to 0.
Auxiliary device/register
(R/RW)
Special device/register
(S/SW)
Timer dev ice/register
(T./T)
Counter device/register
(C./C)
Data register (D) User specified retentive registers are retained. Others are

Index register (I, J, K) Cleared to 0.

6F3B0253

User specified retentive registers and forced coil devices
are retained. Others are cleared to 0.
Special setting data are retained. Others are cleare d to 0.

User specified retentive registers are retained. Others are
cleared to 0.
User specified retentive registers are retained. Others are
cleared to 0.

cleared to 0.

NOTE

(1) When the data stored in the EEPROM (Data registers) are used, these

registers should be specified as retentive. Otherwise, these data are
transferred from EEPROM to RAM, but then cleared to 0 at the
initialization.

(2) The data in the retentive registers are stored in RAM and backed up by

built-in capacitor and by the optional battery if used. The back-up
period is 1 hour s or more at 25 ° C . If optional battery (CR2032) is
used, the back-up period is 1 year or more at 25 °C.
The T1-16S checks the validity of the retentive data at the power-up
initialization, and if they are not valid, sets the special device (S00F) to
ON. Therefore, check the status of S00F in the user program and
initialize the retentive registers if S00F is ON.

(3) The retentive registers can be set by the programming tool for RW, T,

C and D registers. The registers from address 0 to the designated
address for each type are set as retentive registers. Refer to the
separate manual for the programming tool for setting the retentive
registers.

(4) The input force and the forced coil are functions for program

debugging. For details, refer to section 6.7.

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5. Operating System Overview

Self-diagnosis:

Checks the proper operation of the T1-16S itself. If an error has detected and cannot
be recovered by re-trie s , the T1-16S moves into ERROR mode. For the self-diagnosis
items, refer to section 10.2.

Mode control:

Checks the mode control switch status and the mode control request commands from
the programming tool.
The scan mode − floating scan or fixed-time scan − is also controlled hear.

NOTE

The floating scan:

When one scan is finished, immediately starts the next scan. The scan time
is shortest, but may vary depending on the program execution status.

Scan timeScan time Scan time

The fixed-time scan:

The scan operation is started every user-specified time. The time setting
range is 10 to 200 ms (10 ms units). If an actual scan needs longer time
than the setting time, it works as the floating scan.

Scan time (50 ms fixed) Scan time (50 ms fixed)

(idling) (idling)

Program check:

At the beginning of the RUN mode, the user program is compiled and its validity is
checked.

I/O update:

Reads the external input signals into the external input devices/registers (X/XW), and
sends the data of the external output devices/registers (Y/YW) to the external output
circuits. Then the outputs (relays, etc.) changes the states and latches until the next
I/O update timing.
The states of the forced input devices are not updated by this operation.

Timer update:

Updates the timer registers which are activated in the user program, and the timing
devices (S040 to S047).

Basic Hardware and Function 71

5. Operating System Overview

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User program execution:

Executes the programmed instructions from the beginning to the END instruction.
This is the essential function of the T1-16S.
In this section, only the main program execution is mentioned. For other program
types, s uch as timer interrupt, etc., refer to section 6.5.

Peripheral support:

Supports the communications with the programming tool or external devices
connected by the computer link function. The time for this operation is limited within
approx. 2 ms in the floating scan mode, and within allowable idling time in the fixed­time scan mode.
If the special relay S158 is set to ON, the peripheral support priority mode is selected.
In the peripheral support priority mode, the peripheral support time is not limited. As
the result, the communication response is improved although the scan time becomes
long at the time.

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72 T1-16S User’s Manual

Section 6

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Programming Information

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6.1 Devices and registers, 74

6.2 Index modification, 86

6.3 Real-time clock/calendar, 88

6.4 I/O allocation, 89

6.5 T1-16S memory mode setting, 91

6.6 User program configur ation, 92

6.7 Programming language, 98

6.8 Program execution sequence, 99

6.9 On-line debug support functions, 100

6.10 Password protection, 103

Basic Hardware and Function 73

6. Programming Information

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6.1 Devices and registers

The T1-16S program consists of bit-based instructions that handle ON/OFF
information, such as contact and coil instructions, and register-based (16-bit)
instructions, such as those for data transfer and arithmetic operations.
Devices are used to store the ON/OFF information of contacts and coils, and registers
are used to store 16-bit data.

Devices are divided into six types:
X External input devices

Y External output devices
R Auxiliary relay devices
S Special devices
T. Timer devices
C. Counter devices

6F3B0253

Registers are divided into eight types:
XW External input registers

YW External output registers
RW Auxiliary relay registers
SW Special regi sters
T Timer registers
C Counter registers
D Data registers
I, J, K Index registers

Device and register numbers

X devices share the same memory area as XW registers. Devic e X004, fo r ex ample,
represents the number 4 bit in the XW00 register.

Bit position / Number

(MSB) (LSB)

FEDCBA9876543210

XW00 1

X004

Thus, "X004 is ON" means that bit number 4 of XW00 is 1.
Y, R, and S devices work in a similar manner.

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6. Programming Information

Addressing devices

A device number of X, Y, R and S devices consist of a register number and bit position
as follows.

X 00 4

Represents bit position 0 to F in the register.
Decimal number representing the register containing the corresponding

device.
Represents the type of devic e. (X, Y, R, or S)

As for the timer (T.) and the counter (C.) devices, a device number is expressed as
follows.

T. 12

Corresponding register number. (decimal number)
Represents the type o f devic e. (T. o r C.)

Dot (.) is used to identify as device.

Addressing registers

A register number except the index registers is expressed as follows.

XW 01

Register number. (decimal num ber)
Represe nts the t y pe of register. (XW, YW , RW, S W, T, C or D)

The index registers (I, J and K) do not have the number.

J

I, J, or K

Basic Hardware and Function 75

6. Programming Information

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Available address range

External input device X X000 - X31F
External output device Y
External input reg i ster XW XW00 - XW31
External output regis t er YW
Auxiliary relay device R 4096 points R000 - R255F
Auxiliary relay register RW 256 words RW000 - RW255
Special device S 1024 points S000 - S63F
Special register SW 64 words SW00 - SW63
Timer device T. 256 points T.000 - T.255
Timer register T 256 words T000 - T255
Counter device C. 256 points C.000 - C.255
Counter register C 256 words C000 - C255
Data register D 4096 words D0000 - D4095
Index register

6F3B0253

T1-16SDevice/register Symbol

Number of points Address range

Total 512 points

Y020 - Y31F

Total 32 words

YW02 - YW31

I 1 word I (no address)

J 1 word J (no address)

K 1 word K (no address)

NOTE

(1) 1 word = 16 bits
(2) The available data range in each register is -32768 to 32767 (H8000 to

H7FFF) except for the timer and the counter registers.
The data range of the timer register is 0 to 32767. That of the counter
register is 0 to 65535.

(3) Double-word (32 bits) data is available in two consecutive registers.

In this case, lower address register stores the lower 16 bits data.
(MSB) F -------------0 F ------------ 0 (LSB)

D0100D0101

Upper 16bits Lower 16bits

In this manual, a double-word register is expressed by using ‘⋅’.
For exampl e, D0101⋅D0100.

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6. Programming Information

External input devices (X)

These devices (X) indicate the ON/OFF states of external input signals through the
input circuits. External input devices can be used many times in a program.

External output devices (Y)

The external output devices (Y) store the ON/OFF signals that drive the external
devices through the output circuits. They can be used for coils in a program.

External input registers (XW)

These (XW) are 16-bit registers for storing values, which are received from the input
circuits.

External output registers (YW)

These 16-bit registers (YW) are used for storing values, which are sent to the output
circuits.

Auxiliary r elay dev ices and registers (R/RW)

The auxiliary relay devices (R) are used to store intermediate results of sequences.
The auxiliary relay registers (RW) are used to store temporary results of function
instructions. The data in R/RW cannot be output directly to the output circuits. It is
necessary to move the data to Y/YW.
It is possible to make these registers retentive so that they retain data in the event of a
power failure. See section 5.3.

Timer devices and registers (T./T)

The timer registers (T) are used for storing the elapsed time of timer instructions, the
on-delay (TON), off-delay (TOF) and single-shot (SS) timers.

0.01 s base timers and 0.1 s base timers are provided.
Time base T1-16S

0.01 s T000 to T063

0.1 s T064 to T255

The timer devices (T.) work as the output of the timer instructions.
It is possible to specify the T registers as retentive to retain their data in the event of a
power failure. See section 5.3.

Basic Hardware and Function 77

6. Programming Information

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Counter dev ices a nd registers (C./C)

The counter registers (C) are used for storing the count value of the counter (CNT)
and the up-down counter (U/D) instructions.
The counter devices (C.) work as the output of the counter instructions.
It is possible to specify the C registers as retentive to retain their data in the event of a
power failure. See section 5.3.

Data registers (D)

Functionally the data registers (D) are the same as auxiliary relay reg i sters (RW)
except that the D registers cannot be used as devices.
A part of the data registers are saved in the built-in EEPROM as fixed data and
transferred into the RAM at the initial load.
The range of the data registers saved in the EEPROM can be specified by SW55.
See section 5.2.

It is possible to specify the D registers as retentive to retain their data in the event of a
power failure. See section 5.3.

6F3B0253

Index registers (I, J, and K)

These index registers are used for indirect addressing for a register.
For example, if the value of I is 100 in the following register expression, it designates
D0100. For details, refer to section 6.2.

I

D0000 D0100 if I=100

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6. Programming Information

Special devices and registers (S/SW)

The special devices (S) and special registers (SW) are used for special purposes. See
list below.

Device/

register
S000 0: Init ializ ation 4: HOLD mode
S001 T1/T1S operation mode 1: HALT mode 6: ERROR mode
S002 2: RUN mode
S003 3: RUN-F m ode
S004 CPU error (down) ON at error state (related to SW01)
S005 I/O error (down) ON at error state (related to SW02)
S006 Program error (down) ON at error state (related to SW03)
S007 EEPROM alarm (alarm) ON when EEPROM write exceeds 100,000 times
S008 Fixed-time scan time-over

(alarm)
S009
S00A Clock/calendar error

(alarm)
S00B
S00C
S00D TL-F10 error (alarm) ON when TOSLINE-F10 transmission error occurs
S00E
S00F Retentive data invalid

(alarm)

NOTE

(1) These devices are set by the T1-16S operating system. These devices

Name Function

ON when actual scan time is longer than the setting
time as fixed-time scan

−

−

−

−

Reserved
ON when clock/calendar data is illegal

Reserved
Reserved

Reserved
ON when retentive data in RAM are invalid

are read only for user.

(2) Devices marked as (down) are set in the ERROR mode. Therefore

these devices cannot be used in the user program.

(3) Devices marked as (alarm) are set in the normal operation mode.

These devices can be u se d in the u s er program.

Basic Hardware and Function 79

6. Programming Information

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Device/

register
S010 System ROM error (down) ON at error state
S011 System RAM error (down) ON at error state
S012 Program memory error

(down)
S013 EEPROM error (down) ON at error state
S014
S015
S016
S017
S018
S019
S01A
S01B
S01C
S01D
S01E
S01F Watchdog timer error

(down)
S020
S021 I/O mismatch (down) ON at error state
S022
S023
S024
S025
S026
S027
S028
S029
S02A
S02B
S02C
S02D
S02E
S02F

Name Function

ON at error state

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
ON at error state

Reserved

Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved

NOTE

(1) These devices are set by the T1-16S operating system. These devices

are read only for user.

(2) Devices marked as (down) are set in the ERROR mode. Therefore

these devices cannot be used in the user program.

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6. Programming Information

Device/

register
S030 Program error ON at error state (related to SW06)
S031 Scan time over (down) ON when the scan time exceeds 200 ms
S032
S033
S034
S035
S036
S037
S038
S039
S03A
S03B
S03C
S03D
S03E
S03F
S040 Timing relay 0.1 s OFF 0.05 s / ON 0.05 s (0.1 s interval)
S041 Timing relay 0.2 s OFF 0.1 s / ON 0.1 s (0.2 s interval)
S042 Timing relay 0.4 s OFF 0.2 s / ON 0.2 s (0.4 s interval) All OFF at the
S043 Timing relay 0.8 s OFF 0.4 s / ON 0.4 s (0.8 s interval) beginning of
S044 Timing relay 1.0 s OFF 0.5 s / ON 0.5 s (1.0 s interval) RUN mode
S045 Timing relay 2.0 s OFF 1.0 s / ON 1.0 s (2.0 s interval)
S046 Timing relay 4.0 s OFF 2.0 s / ON 2.0 s (4.0 s interval)
S047 Timing relay 8.0 s OFF 4.0 s / ON 4.0 s (8.0 s interval)
S048
S049
S04A
S04B
S04C
S04D
S04E Always OFF Always OFF
S04F Always ON Always ON

Name Function

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved

Reserved
Reserved
Reserved
Reserved
Reserved
Reserved

NOTE

(1) These devices are set by the T1-16S operating system. These devices

are read only for user.

(2) Devices marked as (down) are set in the ERROR mode. Therefore

these devices cannot be used in the user program.

Basic Hardware and Function 81

6. Programming Information

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Device/

register
S050 CF (carry flag) Used for instructions which manipulate carry
S051 ERF (instruction error flag) ON when instruction execution error is occurred

S052
S053
S054
S055
S056
S057
S058
S059
S05A
S05B
S05C
S05D
S05E
S05F
S060 Illegal instruc t ion (down) ON when illegal instruc tion is detected
S061
S062
S063
S064 Boundary error (alarm) ON when illegal address is designated by indirect

S065
S066
S067
S068 Division error (alarm) ON when error occurs in division instruction (operation

S069 BCD data error (alarm) ON when BCD data error has detected in BCD
S06A Table operation error

(alarm)

S06B Encode error (alarm) ON when error occurs in encode instruction (operation
S06C

S06D
S06E
S06F

Name Function

(related to alarm flags of SW06)

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved

Reserved
Reserved
Reserved

addressing (operation continued)
Reserved
Reserved
Reserved

continued)
operation instructions (operation continued)

ON when table size error has detected in table
operation instructions (operation continued) (T1S only)

continued)
Reserved
Reserved
Reserved
Reserved

NOTE

(1) Devices marked as (down) are set in the ERROR mode. Therefore

these devices cannot be used in the user program.

(2) CF, ERF a nd devices marked as (alarm) can be r eset by the user

program.

82 T1-16S User’s Manual

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6. Programming Information

Device/

register
SW07 Clock/calendar (Year) Lower 2 digits of the calendar year

SW08 Clock/calendar (Month) Month (01, 02, ... 12) They are stored in
SW09 Clock/calendar (Day) Day (01, 02, ... 31) the lower 8 bit s by
SW10 Clock/calendar (Hour) Hour (00, 01, ... 59) BCD code
SW11 Clock/calendar (Minute) Minute (00, 01, ... 59)
SW12 Clock/calendar (Second) Second (00, 01, ... 59)
SW13 Clock/calendar (Week) Day of the week

SW14
SW 15 Peripheral support prior ity Bit 8 (S158) is used to select peri pher al support pri or ity
SW16 Mode of special input

functions
SW17 Input filter constant Used to set the input filter constant
SW18 Preset values for high Used to set the preset values for high speed counters
SW19 speed counter
SW20
SW21
SW 22 Count values for high Present count val ues of the high speed counters are
SW23 speed counter stored
SW24 High speed counter control

flags
SW25
SW26 Mode of special output

functions
SW27 Special output control flags Control flags for the pulse/PWM output
SW 28 Special out put frequency

setting
SW29 PWM output duty setting Pulse duty setting for the PWM output
SW30 Analog setting value 1 Input value of the analog setting adjuster V0
SW31 Analog setting value 2 Input value of the analog setting adjuster V1
SW32
SW33
SW34 TL-F10 send data TOSLINE-F10 transmission data (send to master)
SW35 TL-F10 receive data TOSLINE-F10 transmission data (receive from master)
SW36 PRG port station address Used to set the programmer port station address

SW37 PRG port parity Used to set the programmer port parity (0=none,
SW38 PRG port response delay Used to set the programmer port response delay time

Name Function

(01, 02, ... )

(Sun = 00, Mon = 01, ... Sat = 06)

−

−

−

−

Reserved

Used to selec t the specia l input functions

Control flags for the high speed counters
Reserved

Used to select the special output functions

Output frequency setting for the pulse/PWM output

Reserved
Reserved

(1 to 32)
1=odd)
(0 to 30: 0 to 300ms)

NOTE

(1) These devices are set by the T1-16S operating system. These devices

are read only for user.

(2) Devices marked as (down) are set in the ERROR mode. Therefore

these devices cannot be used in the user program.

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Device/
register

S390 Timer interrupt execution

status
S391 I/O interrupt #1 execution

status
S392 I/O interrupt #2 execution

status
S393 I/O interrupt #3 execution

status
S394 I/O interrupt #4 execution

status
S395
S396
S397
S398
S399
S39A
S39B
S39C
S39D
S39E
S39F
S400
S401 HOLD device ON during HOLD mode (setting by user program is also

S402
S403
S404
S405
S406
S407
S408
S409
S40A
S40B
S40C
S40D
S40E
S40F

Name Function

ON during execution
ON during execution
ON during execution
ON during execution
ON during execution

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved

available)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved

84 T1-16S User’s Manual

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6. Programming Information

Device/
register

SW 41 S ub-progr am #1 execution

status
SW42
SW43
SW44
SW45
SW46
SW47
SW48
SW49
SW50
SW51
SW52
SW53
SW54 Basic unit I/O LED display

mode
SW55 Number of EEPROM write

data
SW56 RS-485 port operation

mode
SW57 RS-485 port response

delay
SW58 RS-485 port Free ASCII

flags
SW59
SW60
SW61
SW62
SW63

Name Function

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

−

Bit 0 (S410) is ON during the sub-program #1 is
executed
Reserved

Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Used to display the selected I/O module status

(0 = Basic unit, 1 to 8 = I/O module slot 0 t o 7,
9 and 10 = TOSLINE-F10)
Used to set the number of data registers to be saved in
the EEPROM (0 to 2048, initial value is 2048)
Used to set the RS-485 port operation mode
(0 = Computer link, 1 = Data link, 2 = Free ASCII,
3 = Inverter connection)
Used to set the RS-485 port response delay time
(0 to 30: 0 to 300ms)
Used for the RS-485 port Free ASCII function

Reserved
Reserved
Reserved
Reserved
Reserved

NOTE

(1) For details of SW54, refer to section 1.5.1.
(2) For details of SW55, refer to section 5.2.
(3) For details of SW56 through SW58, refer to the Communication

function manual.

Basic Hardware and Function 85

6. Programming Information

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6.2 Index modification

When registers are used as operands of instructions, the method of directly
designating the register address as shown in Example 1) below is called ‘direct
addressing’.

As opposed to this, the method of indirectly designating the register by combination
with the contents of the index register (I, J, or K) as shown in Example 2) below is
called ‘indirect addressing’. In particular, in this case, since the address is modified
using an index register, this is called ‘index modification’.

Example 1)

[ RW10 MOV D1000 ]
Data tran sfer instruct io n

Transfer data of R W10 to D1000

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Example 2)

I J

[ RW10 MOV D0000 ]
Data transfer instruction (with index modification)

Transfer data of RW(10 + I) to D(0000 + J)
(If I = 3 and J = 200, the data of RW13 is transferred to D0200)

There are 3 types of index register, I, J and K. Each type processes 16-bit integers
(-32768 to 32767). There are no particular differences in function between these 3
types of index register.

There is no special instruction for substituting values in these index registers. These
are designated as destination of data transfer instructions, etc.

[ 00064 MOV I ] (substitutes 64 in index register I)
[ D0035 MOV J ] (substitutes the data of D0035 in index register J)
[ RW 2 0 + 00030 → K ] (substitutes the result of addition in index register K)

NOTE

(1) The index modification is available for RW, T, C and D registers.
(2) If index registers are used as a double-length register, only the

combinations J×I and K×J are allowed.

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6. Programming Information

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The followings are examples of index modifications.

6F3B0253

!

CAUTION

I
RW10

J
D0201

NOTE

⋅

D0200

Be careful that the registers do not exceed the address range by the index
modification. The address range is not checked by the T1-1 6 S .

Substitutions of values into index registers and index modifications can be
used an y times in a program. Normal l y, the program will be easier to see if
a value substitution into an i ndex regist er is positioned immediately before
the index modification.

When I = 0, it designates RW10.
When I = 1, it designates RW11.
When I = -1, it designates RW09.
When I = 10, it designates RW20.
When I = -10, it designates RW00.

When J = 0, it designates D0201⋅D0200.
When J = 1, it designates D0202⋅D0201.
When J = 2, it designates D0203⋅D0202.
When J = -1, it designates D0200⋅D0199.
When J = -2, it designates D0199⋅D0198.

Basic Hardware and Function 87

6. Programming Information

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6.3 Real-time clock/calendar (Enhanced model only)

The T1-16S enhanced model is equipped with the real-time clock/calendar for year,
month, day, day of the week, hour, minute, and second.
These data are stored in the special registers S W 0 7 to SW13 b y 2-digit BCD format
as follows.

Register Function Data
SW07 Year 1999 = H0099, 2000 = H0000, 2001 = H0001, 2002 = H0002 ...
SW 08 Month J an. = H0001, Feb. = H0002, Mar. = H0003, ... Dec. = H0012
SW 09 Day 1st = H0001, 2nd = H0002, 3rd = H0003, ... 31st = H0031
SW 10 Hour H0000, H0001, H0002, ... H0022, H0023
SW 11 Minute H0000, H0001, H0002, ... H0058, H0059
SW 12 Second H0000, H0001, H0002, ... H0058, H0059
SW 13 Week Sun. = H0000, Mon. = H0001, Tue. = H0002, ... Sat. = H0006

Program example:

In the following circuit, output Y030 turns ON for 1 minute at every Sunday 6 pm.

6F3B0253

(H0018)

Clock/calendar back up:

The clock/calendar continues updating even while the power to the T1-16S is off by
built-in capacitor and by the optional battery (CR2032) if used. Its buck-up period is as
follows.

Environment

temperature
Under 30 °C (86 °F) 2 hours 2 year 1 hours 1 year
Over 30 °C (86 °F) 1 hours 1 year 30 minutes 6 months

Expected value Guarantee value

Capacitor Battery Capacitor Battery

As shown in the table, it is recommended to use the optional battery when the real­time clock/calendar function is used.

In the T1-16S, the validity of the clock/calendar is checked. If the data is not valid by
excess power off period, special relay S00A is set to ON. Therefore, when the
clock/calendar is used, it is recommended to check the status of S00A in the user
program.

Setting the clock/calendar:

To set the clock/calendar data, the following 2 ways are available. In both cases, the
week data is automatically calculated.
(1) Setting the clock/calendar data on the system information screen of the

programming tool.

(2) Using the Calendar Set instruction (CLND) in the user program.

88 T1-16S User’s Manual

6.4 I/O allocation

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The external input signals are allocated to the external input devices/registers (X/XW).
The external output signals are allocated to the external output devices/registers
(Y/YW).
The register numbers of the external input and output registers are consecutive. Thus
one register number can be assigned for either input or output.

As for the T1-16S basic unit, I/O allocation is fixed as follows.

X000 --- X007 Y020---- Y027

6F3B0253

6. Programming Information

Inputs: 8 points (X000 - X007)

T1-16S Outputs: 8 points (Y020 - Y027)

Any operations for the I/O allocation are not required if only the T1-16S basic unit is
used.
However, if the I/O modules are used with the T1-16S, the I/O allocation operation is
necessary. Refer to the separate manual "T1-16S User's Manual - I/O Modules -".

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Internally, the T1-16S has information called ‘I/O allocation table’ in its memory. This
I/O allocation table shows the correspondence between I/O hardware and software,
i.e. register/device.

The contents of the I/O allocation table are as follows.

Unit Slot I/O type

PU

0 X+Y 4W
1
2

0

1

3
4
5
6
7
0
1
2
3
4
5
6
7

6F3B0253

PU slot must be blank
Slot 0 is for basic unit (XW00, XW01, YW02
and YW03 are assigned internally)

Slots 1 to 7 of unit 0 are not used
(must be blank)

These slots are for I/O modules

The T1-16S operating system automatically sets the I/O type ‘X+Y 4W’ on the slot 0 at
unit 0 position when the memory clear is executed for the T1-16S.

When the T1-16S program is developed in off-line, the above I/O allocation table
should be set before programming. For this operation (called manual I/O allocat ion) ,
refe r to t he programming tool manual.

NOTE

(1) Unit base address setting function is not supported by the T1-16S.

Do not use this function with the T1-16S. It will causes malfunction.

(2) When the TOSLINE-F10 station module FR112M is used, allocate it at

the end of the I/O modules.

90 T1-16S User’s Manual

6.5 T1-16S memory mode setting

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The program capacity of the T1 -16S is 8 k steps. However, user can set the T1-16S’s
program capacity to 4 k steps. It is called the T1-16S’s memory mode.
That is, the T1-16S has two memory modes, 8 k mode and 4 k mode.

In the 4 k mode, on-line program changes become available, although the program
capacity is limited to 4 k steps. Refer to section 6.9 for the on-line debug support
functions.

To set the T1-16S’s memory mode, write 4 k or 8 k on the Program Size Setting of the
System Pa rameters u sing the programm ing tool. Then execute the EEPROM write
command.

6F3B0253

6. Programming Information

Basic Hardware and Function 91

6. Programming Information

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6.6 User program configuration

A group of instructions for achieving the PLC-based control system is called ‘user
program’. The T1-16S has 8 k steps capacity for storing the user program.
A ‘step’ is the minimum unit, which composes an instruction. Number of steps required
for one instruction is depending on the type of instruction. Refer to section 7.1.

The fig u re below shows the T1-16S’s memory configuration.

6F3B0253

RAM

System information

4 k or 8 k steps

NOTE

For conditions of transfer between RAM and EEPROM, see section 5.2.

User program

Data registers

mentioned in

section 5.2

Other registers/

devices

Back-up area
by EEPROM

92 T1-16S User’s Manual

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6. Programming Information

System information

System information is the area which stores execution control parameters. The
following contents are included in the system information.

(1) Machine parameters (hardware type, memory type)
(2) User program information (program ID, system comments, number of steps used)
(3) Passwords
(4) Retentive register area information
(5) T1S program memory mode, 4 k steps or 8 k steps
(6) Execution control parameters (scan mode, timer interrupt interval)
(7) Sta t i o n number setting for programmer port (T1), or RS-485 port communication

parameters (Enhanced model)
(8) I/O allocation table
(9) Input force table

The system information is stored in the built-in EEPROM. Therefore, when this
information is modified, the EEPROM write operation is necessary. Otherwise, these
are over-written by original EEPROM contents at the next initial load timing.

User progr am

The T1-16S has a capacity of 8 k steps of the user program.
The user program is s tored by each program types as shown in the following diagram,
and is managed by units called blocks in each program types.

User program configuration Program type internal configurati on

(Program types) (Blocks)

Main program

Sub-program #1

Timer interrupt
I/O interrupt #1
I/O interrupt #2
I/O interrupt #3

Block 1

Block 2

Block 10

Block N

(N = max. 256)

I/O interrupt #4

Subroutine

Block 1

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In the u ser program, the main program is the core. The scan operation explained in
section 5.3 is for the main program. The operation of other program types are
explained in the following sections.
The following 8 program types are supported by the T1-16S.

(1) Main program
(2) Sub-program #1
(3) Timer interrupt program
(4) I/O interrupt program #1
(5) I/O interrupt program #2
(6) I/O interrupt program #3
(7) I/O interrupt program #4
(8) Subroutine

The blocks are just separators of the program, and have no effect on the program
execution. However, by dividing the us er program into some blocks, the program
becomes easy to understand. The block numbers need not be consecutive.

6F3B0253

In each program type and block, there is no limit of program capacity. The only limit is
the total capacity.

6.6.1 Main program

The main program is the core of the user program. It is executed once in each scan.

Mode Main programTimerI/O I/OMode

In the above figure,

Mode means the mode control operation
I/O means the I/O update processing
Timer means the timer up date processing
Main program means the main program execution
the self-diagnostic check and peripheral support are omitted in this figure.

The end of the main program is recognized by the END instruction.
Although instructions may be present after the END instruction, these portions will not
be executed.

1 scan time

Time

Timer

Main program

94 T1-16S User’s Manual

6.6.2 Sub-program #1

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If the sub-program #1 is programmed, it is executed once at the beginning of the first
scan (before main program execution).

Theref o re , t h e sub-progra m #1 can be us e d to set the init ial value into th e registers.
The sub-program #1 is called the initial program.

The fig u re below s hows the first scan operation.

6F3B0253

6. Programming Information

RUN mode

transition

I/O

1st scan

The end of the sub-program #1 is recognized by the END instruction.

6.6.3 Timer interr upt program

The timer interrupt is the highest priority task. It is executed cyclically with a user
specified interval, with suspending other operation.
The interrupt interval is set in the system information. (5 to 1000 ms, 5 ms units)

1 scan

Scan

2nd scan

Main programSub#1Timer I/OMode Timer

Time

1 scan1 scan1 scan

Main program

Timer interrupt

Timer interrupt

interval

Time

Timer interrupt

interval

The end of the timer interrupt is recognized by the IRET instruction.

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6.6.4 I/O interrupt programs

The I/O interrupt program is also the highest priority task. It is executed immediately
when the interrupt factor is generated, with suspending other operation.

The following 4 types I/O interrupt programs are supported in the T1/T1S.
(1) I/O interrupt #1

The I/O interrupt #1 is used with the high speed counter function. W hen the count

value reaches the preset value, etc., the I/O interrupt #1 is activated immediately

with suspending other operation. The end of the I/O interrupt #1 is recognized by

the IRET instruction. For detailed information, refer to section 8.3.
(2) I/O interrupt #2

The I/O interrupt #2 is also used with the high speed counter function. Refer to

section 8.3 for details.

6F3B0253

(3) I/O interrupt #3

The I/O interrupt #3 is used with the interrupt input function. When the state of the

interrupt input is changed from OFF to ON (or ON to OFF), the I/O interrupt #3 is

activated immediately with suspending other operation. The end of the I/O

interrupt #3 is also recognized by the IRET instruction. For detailed information,

refer to section 8.4.
(4) I/O interrupt #4

The I/O interrupt #4 is also used with the interrupt input function. Refer to section

8.4 for details.

If an interrupt factor is generated while other interrupt program is executing ( in cluding
the timer interrupt), the interrupt factor is held. Then it will be activated after finishing
the other interrupt program execution.

If two or more interrupt factors are generated at the same time, the priority is as
follows.

Timer > I/O #1 > I/O #2 > I/O #3 > I/O #4

96 T1-16S User’s Manual

6.6.5 Subroutines

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In the program t ype ‘Subroutine’, The following number of subroutines can be
programmed.

The T1-16S supports up to 256 subroutines.
The subroutine is not a independent program. It is called from other program types

(main program, sub-program , interrupt program) and from other subroutines.
One subroutine is st ar t ed wi t h the SUBR instruction, and ended by the RET

instruction.
It is necessary to assign a subroutine number to the SUBR instruction. The available

subroutine numbers are 0 to 255.
[ SUBR (000) ]

6F3B0253

6. Programming Information

Subro u tine number
The RET instruction has no subroutine number.
The instruction that calls a registered subroutine is the CALL instruction. The CALL

instruction has the subroutine number to be called.
[ CALL N.000 ]

Subro u tine number

Main program Subroutine

Execution

flow

[ SUBR (000) ]

[ CALL N.000 ]

 [ RET ]

NOTE

(1) Multiple subroutines can be programmed in a block. However, one

subroutine in one block is recommended.

(2) From the inside of a subroutine, other subroutines can be called

(nesting). Its allowable level is up to 3 levels.

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6. Programming Information

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6.7 Programming language

The programming lan guage of the T1-16S is ‘ladder diagram’.
Ladder diagram is a language, which composes program using relay symbols as a
base in an image similar to a hard-wired relay sequence. In the T1/T1S, in order to
achieve an efficient data-processing program, ladder diagram which are combinations
of relay symbols and function blocks are used.

The ladder diagram program is constructed by units called ‘rung’. A rung is defined as
one network which is connected each other.

1

6F3B0253

RungRung number

2

3

The rung numbers are a series of numbers (decimal number) starting from 1, and
cannot be skipped. There is no limit to the number of rungs.

The size of any one rung is limited to 11 lines × 12 columns.
A example of a ladder diagram program is shown below.

When X005 is ON or the data of D0100 is greater than 200, Y027 comes ON.
Y027 stays ON even if X005 is OFF and the data of D0100 is 200 or less.
Y027 will come OFF when X006 comes ON.

98 T1-16S User’s Manual