Toshiba CD332 User Manual

UM-TS03∗∗∗-E024

PROGRAMMABLE CONTROLLER

PROSEC T3

CHANGE DETECT DC INPUT MODULE

CD332

USER’S MANUAL

TOSHIBA CORPORATION

Important Information

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 damage or injury 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 application 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 ⎯ electrical, mechanical, photocopying, recording, or otherwise ⎯ without
obtaining prior written permission from Toshiba Corporation.

© TOSHIBA Corporation 1996. All rights reserved
Publication number: UM-TS03∗∗∗-E024

1st edition August 1996

PROSEC is a registered trademark of TOSHIBA Corporation.

Safety Precautions

This module (CD332) is a change detect DC input module for Toshiba’s Programmable Controller
PROSEC-T3 or T3H (hereafter called T3 generically). Read this manual thoroughly before using
this module. Also, keep this manual and related manuals so that you can read them anytime while
this module is in operation.

Safety Symbols

The following safety symbols are used on the product and/or in the related manuals.
Pay attention to information preceded by the following symbols for safety.

!

WARNING

!

CAUTION

against unsafe practices.

Safety Precautions

• Turn off power to the T3 and to the CD332 before removing or mounting the CD332.
Failure to do so can cause electrical shock or damage to this product.

• Read the Safety Precautions described in the T3 User’s Manual before using the T3
and the CD332.

• Follow the instructions described in this manual and in the T3 User’s Manual when
installing and wiring the T3 and the CD332.

• The CD332 has been designed for the T3. Use your CD332 only on the rack of the T3.

• Remove the CD332 from the rack before setting the jumper plugs on the CD332.

Do not touch other components on the CD332’s printed circuit board. It may cause
damage to the CD332.

• The CD332 consumes maximum 0.3 A of internal 5 Vdc power. Confirm that the total
5 Vdc consumed current per one power supply module is within the limit (7A).
If it exceeds the limit, the T3 cannot operate properly and this may cause unsafe
situation.

Indicates a potentially hazardous situation which, if not avoided,
could result in death or 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

!

CAUTION

User’s Manual 1

About This Manual

About This Manual

This manual explains the specifications and operations of the Change Detect DC Input
Module (CD332) for Programmable Controller T3. Read this manual carefully before using
the CD332.

Inside This Manual

Section 1 Overview

This section introduces the CD332. The CD332 has an interrupt generation function for the
T3. This section outlines the CD332’s function. The external features of the CD332 are also
provided in this section.

Section 2 Specifications
This section provides the hardware and functional specifications of the CD332. The
information for external wire connections is also provided in this section.

Section 3 Mode Setting
The input delay time and the interrupt generation timings are user selectable. This section
explains the switch settings for this purpose.

Section 4 I/O Allocation
This section provides the information to design T3 program for the CD332. This section
explains the I/O allocation and functions of the I/O register assigned to the CD332.

Section 5 Programming
The CD332 generates an interrupt signal for the T3. This section provides T3’s sample
program for the CD332. Precautions for using the interrupt function are also explained in
this section.

2 Change Detect DC Input Module (CD332)

About This Manual

Related Manuals

The following related manuals are available for T3. Besides this manual, read the following
manuals for your better understanding.

T3 User’s Manual - Hardware

This manual covers the T3’s main body and basic I/O - their specifications, handling,
maintenance and services.

T3 User’s Manual - Functions
This manual explains the functions of the T3 and how to use them. The necessary
information to create user program is covered in this manual.

T3H User’s Manual
This manual explains the specifications of the T3H and the functional differences between
the T3H and the T3.

T-series Instruction Set

This manual provides the detailed specifications of instructions for Toshiba’s T-series
Programmable Controllers.

T-series Computer Link Function

This manual provides the information for a computer to communicate with T3 through the
T-series Programmable Controller’s Computer Link function.

T-PDS (Ver. 1.4) Basic Operation manual
This manual explains how to install the T-series program development system (T-PDS)
into your computer and provides basic programming operations.

T-PDS (Ver. 1.4) Command Reference Manual

This manual explains the T-series program development system (T-PDS) in detail.

T-PDS (Ver. 1.6) Expanded Functions

This manual explains the expanded functions on the T-PDS version 1.6. This manual
supplements the T-PDS (Ver.1.4) Command Reference Manual.

T-series Handy Programmer (HP911) Operation Manual
This manual explains the functions and key operations of the T-series Handy Programmer
(HP911).

NOTE

Other than the listed above, some T3 related manuals for special I/O modules and data
transmission modules are available. Contact Toshiba for more information.

User’s Manual 3

Contents

Contents

Safety Precautions ...................................................................................... 1

About This Manual ...................................................................................... 2

Contents ..................................................................................................... 4

1. CD332 Overview ............................................................................. 5

1.1 Introduction ...................................................................................... 6

1.2 External features .............................................................................. 7

2. Specifications ................................................................................ 9

2.1 General specifications .................................................................... 10

2.2 Functional specifications ................................................................. 10

2.3 Input circuit .................................................................................... 11

2.4 Input signal connections ................................................................. 11

3. Mode Setting ................................................................................. 13

3.1 Input delay setting ........................................................................... 14

3.2 Interrupt generation timing setting ................................................... 15

4. I/O Allocation ................................................................................. 17

4.1 I/O allocation and I/O register ......................................................... 18

4.2 Interrupt assignment ....................................................................... 20

5. Programming ................................................................................ 21

5.1 T3 sample program ......................................................................... 22

5.2 Interrupt operation .......................................................................... 24

4 Change Detect DC Input Module (CD332)

Section 1

CD332 Overview

1.1 Introduction, 6

1.2 External features, 7

User’s Manual 5

1. CD332 Overview

1.1 Introduction

The change detect DC input module CD332 (hereafter called CD332) is an 8 points 12

- 24 Vdc input module with interrupt generation function for Toshiba’s Programmable
Controller PROSEC-T3 or T3H (hereafter called T3 generically).

When the input signal status of the CD332 is changed, the CD332 generates an
interrupt for the T3. Then the T3 immediately stops ordinary operation and starts to
execute the pre-assigned I/O interrupt program.
The task switching time in the T3 is less than 500 µs. (under interrupt enable state)

The interrupt generation timing of the CD332 can be selected as follows for each input
point. This selection is made by the DIP switches provided on the front of the CD332.

(1) Rising edge (from OFF to ON)
(2) Falling edge (from ON to OFF)
(3) Both edges (both OFF to ON and ON to OFF)

This CD332 has 8 input points. By using one CD332, up to 8 interrupt factors can be
processed. On the other hand, up to 8 I/O interrupt programs are available in the T3.
Therefore, total up to 64 (= 8 × 8) interrupt factors can be processed by the T3 by using
8 CD332s.

The input voltage of the CD332 is 12 to 24 Vdc. The input delay time can be selected
either normal or high speed as 8 points block by setting the internal jumper plugs.

NOTE

The T3 supports 8 I/O interrupt programs. Therefore, maximum 8 CD332s
can be used with the T3.

6 Change Detect DC Input Module (CD332)

1.2 External features

CD332

DATA

01234567

STATUS

01234567

CHANGE DETECT

UP

IN0

1
2
3
4
5
6
7

DOWN

IN0

1
2
3
4
5
6
7

NC
NC

IN0
IN1
IN2
IN3

IN4
IN5
IN6
IN7

COM

CD332

1. CD332 Overview

Status LEDs

ON

ON

1

2

3

4

5

6

7

8

9

10

11

Interrupt timing setting DIP switches

Input terminals

NOTE

Do not connect any wires to
the NC terminals.

User’s Manual 7

1. CD332 Overview

Status LEDs

Indicates the input signal ON/OFF status (DATA 0 - 7) and the interrupt generation
point (STATUS 0 - 7). Normally STATUS 0 - 7 are all OFF. (momentary ON)

DATA 0 - 7 Indicates the input signal status of IN0 to IN7. Lit when ON.
STATUS 0 - 7 Indicates the input point which is the interrupt factor.

(returned to OFF by resetting the interrupt flag)

Interrupt timing setting DIP switches

Total 16 switches are provided. These switches are used to set the interrupt
generation timing for each input point. (Rising, falling or both edges)
Refer to section 3.2.

Input terminals

Used to connect the external input signals. Refer to section 2.4.

NOTE

Jumper plugs

CD332 rear view

Do not connect any wires to the NC terminals.

Jumper plugs for selecting the input delay are
provided. Refer to section 3.1.

8 Change Detect DC Input Module (CD332)

Section 2

Specifications

2.1 General specifications, 10

2.2 Functional specifications, 10

2.3 Input circuit, 11

2.4 Input signal connections, 11

User’s Manual 9

2. Specifications

2.1 General specifications

Item Specifications Remarks
Power voltage 5 Vdc (supplied from back plane bus)
Current consumption 0.3 A (5 Vdc) maximum Note (1)
Environmental conditions Conforms to T3 specifications
Withstand voltage 1500 Vac - 1 minute Note (2)
Size T3 I/O module size (1 slot)
Weight Approx. 450 g

Note (1) The T3’s power supply module can supply maximum 7 A of internal 5 Vdc.
Check that the internal 5 Vdc current consumption per one power supply
module does not exceed the limit.
Note (2) Between external terminals and internal circuit.

2.2 Functional specifications

Item Specifications Remarks
Module type Change detect DC input
I/O allocation type iX 1W
Input type DC input, current source/sink
Number of input points 8 points (8 points/common)
Rated input voltage 12 - 24 Vdc
Input voltage range 10 - 30 Vdc
Rated input current 10 mA (at 24 Vdc)
Minimum ON voltage 9.6 Vdc
Maximum OFF voltage 3.5 Vdc
ON delay time 30 ms or less (normal mode)

3.0 ms or less (high speed mode)

OFF delay time 35 ms or less (normal mode)

3.5 ms or less (high speed mode)
LED
display
STATUS 0 - 7 Interrupt point display, returned to OFF

Interrupt function Generates interrupt signal for T3 when

Number of modules on T3 Max. 8 modules

Note (1) The normal or high speed mode can be selected by internal jumper plug
settings. Refer to section 3.1.
The delay time includes the input filter and internal sampling.
Note (2) The interrupt timing is selected by DIP switches. Refer to section 3.2.

DATA 0 - 7 Input status display for all points,

lit at ON, internal logic side
by resetting the interrupt flag
input status of each point is changed.

Interrupt timing can be selected for each
point either rising, falling or both edges.

Note (1)
Note (1)

Note (2)

10 Change Detect DC Input Module (CD332)

2.3 Input circuit

IN0

2.4 k

2. Specifications

Ω

LED
display

470

1.5 µF

Ω

IN1

IN7

COM

2.4 Input signal connections

Input terminal block

IN0
IN1
IN2

IN3
IN4
IN5
IN6
IN7

COM

1
2
3
4
5
6
7
8

9
10
11

Do not connect any wire

Interrupt

12 - 24 Vdc

User’s Manual 11

12 Change Detect DC Input Module (CD332)

Section 3

Mode Setting

3.1 Input delay setting, 14

3.2 Interrupt generation timing setting, 15

User’s Manual 13

3. Mode Setting

3.1 Input delay setting

The input delay time of the CD332 can be selected either normal or high speed mode.
Refer to section 2.2 for the delay time of each mode.

The input delay setting is made by the jumper plugs provided on the CD332’s printed
circuit board. This setting is applied for all 8 input points as a block.

CD332 left side

J9

BA

J1
J2
J3
J4
J5
J6
J7
J8

BA

J11J10

Set these jumper plugs as follows.

Mode J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 J11
Normal mode ON (short) OFF B side
High speed mode OFF (open) OFF A side

NOTE

(1) The factory setting is the normal mode.
(2) Use a pair of tweezers to set the jumper plugs.
(3) J9 must be always OFF (open).

14 Change Detect DC Input Module (CD332)

3.2 Interrupt generation timing setting

The interrupt generation timing of each input point can be selected either rising, falling
or both edges.

• Rising edge (OFF to ON)

Input

Interrupt

• Falling edge (ON to OFF)

Input

ON OFFOFF

ON OFFOFF

3. Mode Setting

Interrupt

• Both edges (OFF to ON and ON to OFF)

ON OFFOFF

Input

Interrupt

This setting is made by the DIP switches provided on the front of the CD332.

CHANGE DETECT

UP

IN0

1
2
3
4
5
6
7

ON

DOWN

IN0

1
2
3
4
5
6
7

ON

Mode UP DOWN
Rising edge ON OFF
Falling edge OFF ON
Both edges ON ON

NOTE

(1) This setting is available for each input
point individually.
(2) The factory setting is all ON.
(Both edges)
(3) Changes of the DIP switches are
effective while power on.

User’s Manual 15

16 Change Detect DC Input Module (CD332)

Section 4

I/O Allocation

4.1 I/O allocation and I/O register, 18

4.2 Interrupt assignment, 20

User’s Manual 17

4. I/O Allocation

4.1 I/O allocation and I/O register

The CD332 has the I/O type ‘i X 1W’ for I/O allocation. When the automatic I/O
allocation is performed with mounting the CD332, the following I/O allocation table will
be created in the T3.

(T-PDS screen example - in the case that CD332 is mounted on Slot 0 of Unit 0)

Then, one input register, XW(n) is assigned to the CD332.
In the above example, XW000 is assigned.

Note that the I/O type has ‘i’ designation. It means that the CD332 has interrupt
generation function for the T3, also the T3 will not update the assigned input register in
the batch I/O processing. To read data through the input register, the Direct I/O
instruction (FUN235) is necessary.

18 Change Detect DC Input Module (CD332)

4. I/O Allocation

The following table shows the function of each bit of the input register assigned to
the CD332.

F E D C B A 9 8 7 6 5 4 3 2 1 0

XW(n)

Status Data

Register Bit Name Description

0 IN0 Indicates ON/OFF status of input IN0
1 IN1 Ditto IN1
2 IN2 Ditto IN2
3 Data IN3 Ditto IN3
4 IN4 Ditto IN4
5 IN5 Ditto IN5
6 IN6 Ditto IN6

XW(n) 7 IN7 Ditto IN7

8 IN0 Comes ON when interrupt is generated by IN0 changing
9 IN1 Ditto IN1 changing
A IN2 Ditto IN2 changing
B Status IN3 Ditto IN3 changing
C IN4 Ditto IN4 changing
D IN5 Ditto IN5 changing
E IN6 Ditto IN6 changing
F IN7 Ditto IN7 changing

The data of the CD332 can be read into the XW(n) register by using the Direct I/O
instruction (FUN235).

By executing the Direct I/O instruction, the interrupt flag (interrupt request) is reset to
OFF internally, and at the same time, the status bits are reset to OFF inside the CD332.

User’s Manual 19

4. I/O Allocation

4.2 Interrupt assignment

The T3 has 8 I/O interrupt programs, I/O#1 to I/O#8.
If one interrupt generation module (CD332) is used, the I/O#1 program is assigned to

the CD332. And the I/O#1 is activated when the CD332 generates an interrupt.
If two or more (up to 8) interrupt generation modules (CD332, etc.) are used, the

interrupt programs are assigned sequentially from the module allocated closest to the
T3 CPU.

For example, if 3 CD332s are used, the I/O#1, I/O#2 and I/O#3 are assigned
sequentially as follows.

T3 basic unit Expansion unit

0 1 2 3 4 5 6 7 89 0123456 7 8 9 10

P

I F C

C

C

S

P

D

U

3
3
2

I/O#1

As for the interrupt priority, the interrupt generation module which is allocated closest to
the T3 CPU has highest priority and followed by this order.

NOTE

General

I/O

D

3
3
2

I/O#2 I/O#3

In default, the T3’s I/O interrupt program and the interrupt generation module
are related as mentioned above. However user can change this relation
(assignment) by using the interrupt assignment function of the T3.
For this function, refer to the T3 User’s Manual - Function.

P

General

I/O

IFC

S

D

3
3
2

General

I/O

20 Change Detect DC Input Module (CD332)

Section 5

Programming

5.1 T3 sample program, 22

5.2 Interrupt operation, 24

User’s Manual 21

5. Programming

5.1 T3 sample program

The following sample program configuration shows the case of one CD332 is used.
In this example, it is assumed that XW000 is assigned to the CD332.

Main Program

c

User program

(Main program)

d

I/O Interrupt Program #1 (I/O#1)

e

Processing for IN0 interrupt
Processing for IN1 interrupt
Processing for IN2 interrupt
Processing for IN3 interrupt

f

Processing for IN4 interrupt
Processing for IN5 interrupt
Processing for IN6 interrupt
Processing for IN7 interrupt

g

22 Change Detect DC Input Module (CD332)

5. Programming

c At the first scan, initializes the status of the CD332. − Important
d End of the main program
e Resets the interrupt flag and confirms the interrupt factor. − Important
f Processing program for each interrupt factor

(Subroutine call can also be used)

g End of the interrupt program

NOTE

When the Direct I/O instruction for the CD332 is executed, the internal
interrupt flag of the CD332 is reset. Therefore, do not use the Direct I/O
instruction for the CD332 on the main program, except

c above.

User’s Manual 23

5. Programming

5.2 Interrupt operation

The enable/disable of the interrupt program is changed as follows.

PLC mode

HALT

HALTRUNHOLDRUN

Scan

Interrupt

Disable

(Hold)

n+1n21

DisableEnableEnableDisable

Time

In the RUN mode, interrupt operation is disabled at the first scan, and enabled from the
second scan.
In the HALT mode, interrupt operation is disabled.
In the HOLD mode, interrupt operation is disabled but the interrupt requests occurred
during HOLD mode is held.

During interrupt program execution, other interrupts are disabled, and the interrupt
request is held as follows.

PLC mode

Scan

HALT

Interrup t pr ogram

Execution

n+2n+1nn21

HALTRUN

Interrupt

Note) The held interrupt requests are accepted when interrupt status is changed to
enable, according to the priority as follows.
(Timer interrupt → I/O#1 → I/O#2 → … → I/O#8, in default)

24 Change Detect DC Input Module (CD332)

Disable

(Hold)

DisableEnableEnableDisable

Time

5. Programming

The interrupt operation can be controlled by the user program instructions, DI (disable
interrupt) and EI (enable interrupt). If a part of program is required to be executed under
interrupt disable state, these instructions can be used.

When using these instructions, note the following precautions.

• On the T3 program, interrupt enable/disable can be controlled by using EI instruction
(FUN140) and DI instruction (FUN141). These instructions should be used in a pair
in the sequence of DI first and followed by EI.

(Main program)

A
[ DI ]

Interrupt is disabled
(interrupt signal is held)

A
[ EI ]

• EI and DI instructions should not be used in interrupt program. Also, these
instructions should not be executed in the first scan.

When using the interrupt function, the following general precautions should be
considered.

• The high frequency of the interrupt generation will cause T3 inoperative. Because, in
such case, the T3 becomes busy to execute the interrupt program, and cannot
execute the main program.

• When the CD332 is used, pay attention to the external noise environment.
Especially, when using the high speed response mode, check this point carefully.

User’s Manual 25

26 Change Detect DC Input Module (CD332)

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Tel: [phone] Fax: [phone]

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TOSHIBA CORPORATION

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Tel: [phone]