Toshiba CHANGE DETECT MODULE User Manual

Integrated Controller

model 2000 I/O Module

(裏面は日本語)

series

Change detect DC input CD633

USER'S GUIDE ■

■

16 Points change detect DC input module :CD633 (GCD633**S)

Thank you for purchasing the TOSHIBA product. Check the package contents, and use this product according to the instructions described in this guide.

• Before using this product, carefully read "Safety Precautions" included in the package.

• This guide describes the minimum information and instructions required to use the CD633. For the system design for the CD633, refer to the following related manuals.

Integrated Controller Vseries User’s Manual :6F8C0905 S2T User’s Manual - Basic Hard ware - :6F8C0926 S2T User’s Manual - Functions - :6F8C0928 S2 User’s Manual - Basic Hardware - :6F8C0836 S2 User’s Manual - functions - :6F8C0837

• The contents of this guide are subject to change without prior notice.

6F8C1040 2002-9(0)

■Overview

The change detect DC input module CD633 is an 16 points 12-24 Vdc input module with interrupt generation function. When the input signal status of the CD633 is changed, the CD633 generates an interrupt for the controller (S2T/S2).

Specification

■

Item Specifications



Type CD633 Category DC input with interrupt generation Input type Current sinking/sourcing

Number of input points

Insulating method Photo-coupler Rated input voltage 12 to 24 Vdc Range input voltage 10.2 to 26.4 Vdc Rated input current 7mA (at 24 Vdc) Input impedance 3.3KΩ Operating voltage

Delay

Minimum input pulse width 1ms Internal sampling cycle 32µs

Input signal display

Configuration of common

External connection 18 points terminal block (removable) Derating condition None Internal current consumption 200 mA or less (5 Vdc) Insulation resistance 10MΩ or more (at 500 Vdc)

Withstand voltage

Weight Approximately 200 g

Min ON voltage 9.6 V

Max OFF voltage 3.6 V OFF to ON 1 ms or less ON to OFF 1 ms or less

No. of common 1

No. of input points per common Polarity of common No polarity

16 points, 1-word input [not update in the batch I/O processing]

LED display for all points, lit at ON, internal logic side

16 points/common

1500 Vac, 1 minutes (between internal and external circuits)

1.65K



Ω

680Ω

Ω

COM

■Internal circuit

COM

■Terminal connections

COM



0.1µF

Photo cou

ler

: DC power supply

: Input switch (solid-state device only)

Internal logic

LED

display

Interru

■Precautions

(1) I/O interrupt function is available only in the main unit. Mount the CD633 on the

basic unit.

(2) If input wiring is long, take measures to prevent erroneous input caused by noise,

as follows. a) Wiring length must be minimized. Do not make unnecessary loops. b) Keep the input wires away, at least 200 mm, from power cables and high

frequency lines, or shield the input cables with a metal plate. c) To improve noise immunity, use a shielded cable and/or twisted-pair cable. d) Install a bleeder resistor to reduce input impedance.

(3) Because the input filter time constant of CD633 is set to small, CD633 may read the

wrong input due to chattering of mechanical-contact. Use solid-state device for the CD633. Also, take measures to suppress noise.

(4) Check the leakage current and the voltage drop of the connected solid-state

devices. It must be within the CD633 specification.

(5) The change detection status of CD633 is cleared to '0', when the controller read the

change detection status and input data. Therefore make the application program to read the change detection status and input data (3 words) at the same time by the direct I/O instruction, in the I/O interrupt program.

(6) CD633 is executing the change detection operation even in the controller is HALT.

In order to clear the change detection status at the beginning of RUN mode, make the application program to read the change detection status and input data (3 words) at the first scan.

(7) As for details of interrupt handling and programming, refer to S2T or S2 user's

manual.



Data format

■

(1) Basic registers

Change detection status and Input data

S2T S2 Description

XWn %IWn Rising edge detection status XWn+1 %IWn+1 Falling edge detection status XWn+2 %IWn+2 Input data XWn+3 %IWn+3 No use (reserved)

[Rising edge detection status bit assignment]

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

US US US US US US US US US US US US US US US US

US: When corresponding bit of input data changes from OFF to ON, it sets to '1'.

[Falling edge detection status bit assignment]

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

LS LS LS LS LS LS LS LS LS LS LS LS LS LS LS LS

LS: When corresponding bit of input data changes from ON to OFF, it sets to '1'.

[Input data bit assignment]

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

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

This register reflects the current input signal status.

When the interrupt enable flag is set to ON (DE='1') and the rising edge detection is selected (UE='1'), the CD633 sets corresponding bit of the change detection status register (US) and generates interrupt to the controller at the time of input signal change from OFF to ON.

As same manner, when the falling edge detection is selected (LE='1'), the CD633 generates interrupt at the time of input signal change from ON to OFF. If both UE and LE are set '1', the interrupt is generated at the time of both change from OFF to ON and from ON to OF

The change detection status is cleared to '0', when the controller is read the change detection status and input data. Therefore make the application program to read the change detection status and input data (3 words) at the same time by the direct I/O instruction, in the I/O interrupt program.

(2) Mode selection registers These registers are accessed by the special module data write instruction (WRITE instruction in S2T, MWRITE instruction in S2).

Address Description

0 Rising edge detection select register 1 Falling edge detection select register 2 Change detection enable register

[Rising edge detection select register bit assignment]

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

UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE

UE: When '1', the interrupt is generated at the time of corresponding input is

changed OFF to ON.（Initial value is all '1'）

[Falling edge detection select register bit assignment]

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

LE LE LE LE LE LE LE LE LE LE LE LE LE LE LE LE

LE: When '1', the interrupt is generated at the time of corresponding input is

changed ON to OFF.（Initial value is all '0'）

[Change detection enable register bit assignment]

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

- - - - - - - - - - - - - - - DE

DE: When '1', change detection is enabled.

When '0', change detection is disabled and change detection status is cleared. （Initial value is '1'）

[Caution]

I/O interrupt is not generated when the bit DE is '0'.

After power on initializing, the change detection mode of all bits is set only rising edge detection is enabled.

In order to change the mode of change detection, write data in the mode register by the special module data write instruction (WRIT E instruction in S2T, MWRITE instruction in S2) in the user program.

Refer to the instruction manual for details of the special module data write instruction.

■Sample programs

(1) S2T

In the I/O interrupt program

I/O(03)XWn

Interrupt handling programs.

(2) S2

In the interrupt task

[Variable declaration]

VER_EXTERNAL VER_TEMP CD_STS0 :WORD; STS0 :WORD; CD_STS1 :WORD; STS1 :WORD; CD_DATA :WORD; DATA :WORD; END_VER END_VER

[Program]

CD_STS0_ STS0

MOVE_WORD

Interrupt handling programs.

Refer to the engineering tool manual and the instruction manual for details of the programming.

CD_STS1_ STS1

MOVE_WORD

IRET

CD_DATA_ DATA

MOVE_WORD

■Front view



■External dimensions



CD633

12-24Vdc IN

Type name

Input indicator LED's

Input terminal block

Specifications

115

143

with bas e unit



137

135

Dimensions in millimeters.