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Toshiba AS311 user manual Appendix, A.1 Specification of the READ instruction, Function, Operand

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Appendix

Appendix

A.1 Specification of the READ instruction

FUN 237 Special module data read (READ)

Reads designated range of data from the special module.

Input	Execution output
[ A READ B →	C ]

Function

•This instruction reads data from the buffer memory of the special module that is designated by operand A, and stores them in T3’s registers starting with operand C.

• The transfer source address (buffer memory

Input

Action

Output

ERF

address) is designated by operand B.

OFF

No execution

OFF

• The transfer size (number of words) is

ON

Normal execution

ON

designated by operand B+1.

Error (see Note 2)

ON

ON

Operand

Index

Constant

Device

Register

Opr

Name

X

Y

S

L

R

Z

T.

C.

I

O

XW

YW

SW

LW

RW

W

T

C

D

F

IW

O

I

J

K

W

A

Special

√

√

√

√

module

B

Transfer

√

√

√

√

√

√

√

√

√

√

parameter

C

Top register

√

√

√

√

√

√

√

√

√

√

of destination

Program example

R0000

[ XW000 READ RW010 →

D0100 ]

•When R0000 is ON, the buffer memory data of the size indicated by RW011, starting with the address indicated by RW010 of the special module allocated to XW000, are read and stored in D0100 and after.

•The maximum number of words to be read is 256 words.

XW000 special module	T3
	RW010
Buffer memory	RW011

20

16

201234

355678

READ	D0100	1234

16 words	D0115
16 words	D0115	5678

60 ASCII Interface Module (AS311)

Image 62

Toshiba AS311 user manual Appendix, A.1 Specification of the READ instruction, Function, Operand, Program example

Contents

AS311 TOSHIBA CORPORATIONPROGRAMMABLE CONTROLLER ASCII INTERFACE MODULEImportant Information HINT Safety PrecautionsSymbols Used In This Manual Safety PrecautionsSection 5 Operation Procedure Section 2 SpecificationsSection 4 Register Configuration About This ManualTerminology T-PDS Ver. 1.4 Command Reference ManualRelated Manuals T3 User’s Manual - HardwareContents ContentsContents 6 ASCII Interface Module AS311 1.1 Introduction 1.2 AS311 functions 1.3 External features Section AS311 Overview1. AS311 Overview 1.1 Introduction1.2 AS311 functions 1. AS311 Overview1. AS311 Overview 1.3 External featuresAS311 Status LEDs SW1  channel 1 transmission parameter setting switchesSW2  channel 2 transmission parameter setting switches No.71. AS311 Overview RS-232C/RS-422 selection switches for channelRSW1/RSW2  Optional rotary switches No.11. AS311 Overview Hardware reset switchChannel 1 and channel 2 serial ports 14 ASCII Interface Module AS311 2.3 Transmission specifications Section Specifications2.1 General specifications 2.2 Functional specifications 2.2 Functional specifications 2. Specifications2.1 General specifications 2.3 Transmission specifications 2. Specifications18 ASCII Interface Module AS311 Section Cable Connections 3.1 RS-232C connection 3.2 RS-422 connection1 FG 2 TXD 3 RXD 4 RTS 5 CTS 6 DSR 7 SG 20 DTR 3. Cable Connections3.1 RS-232C connection RXD TXD DTR SG DSR RTS CTS3.2 RS-422 connection 3. Cable Connections22 ASCII Interface Module AS311 Section Register Configuration 4.1 I/O allocation and I/O registers 4.2 AS311 buffer memory4. Register Configuration 4.1 I/O allocation and I/O registers4. Register Configuration 4. Register Configuration 4.2 AS311 buffer memory4.2.1 Memory map Status and command4. Register Configuration 4.2.2 Buffer memory accessREAD instruction FUN237 WRITE instruction FUN238 4. Register Configuration4.2.3 Parameter area 4. Register ConfigurationRSW1/2 information Status and command 0Status 1 4. Register Configuration4. Register Configuration SW1 informationSW2 information 4. Register Configuration Command 1CH1 receive error 16 and CH2 receive error 4. Register Configuration CH1 transmit error 17 and CH2 transmit errorCH1 channel status 18 and CH2 channel status 4. Register Configuration CH1 receive length 19 and CH2 receive lengthCH1 trailing code 24 and CH2 trailing code CH1 time-out check 25 and CH2 time-out check 4. Register Configuration4.2.4 Receiving and transmitting data area 4. Register Configuration5.7 Setting the time-out check time Section Operation Procedure5.5 Resetting the AS311 by software 5.6 Setting the trailing code 5.1 Transmission message format 5.2 Received message read sequence5. Operation Procedure 5.1 Transmission message format5.2 Received message read sequence 5.2.1 Flag control timing 5. Operation ProcedureOperation for receiving error Subroutine No 5.2.2 T3 sample program for message receiving5. Operation Procedure Main program Operation for normal received message5. Operation Procedure 5. Operation Procedure Explanation for this sample program5.3 Write sequence for message transmitting 5.3.1 Flag control timing 5. Operation ProcedureD0200 - D0263, and set R0110 to ON Operation for transmitting error 5.3.2 T3 sample program for message transmitting5. Operation Procedure Main program Set the transmission message into5. Operation Procedure 5. Operation Procedure 5.4 Checking the AS311 operation status 5. Operation Procedure5.5 Resetting the AS311 by software 5. Operation ProcedureH0003 5.6 Setting the trailing code5. Operation Procedure H80FE5.7 Setting the time-out check time 5. Operation Procedure6.1 LED indication 6.2 Buffer memory information 6.3 Trouble shooting Section RAS Information6. RAS Information 6.1 LED indication6. RAS Information 6.2 Buffer memory information6.2.1 Module status 6.2.2 Switch setting status 6. RAS Information6.2.3 Error information for data receiving 6. RAS Information6.2.4 Error information for data transmitting 6. RAS Information6.3 Trouble shooting 6. RAS Information58 ASCII Interface Module AS311 Appendix A.1 Specification of the READ instructionA.2 Specification of the WRITE instruction Function A.1 Specification of the READ instructionAppendix OperandAppendix Function A.2 Specification of the WRITE instructionAppendix OperandAppendix TOSHIBA CORPORATION Industrial Equipment Department