Toshiba S20LP User Manual

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Instruction Manual TOSLINE-S20LP

T2N/T3H stations

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beside the equipment.

REQUIREMENTS

Main Menu

Contents

June, 1998

TOSHIBA CORPORATION

UM-TS02N**-E005

6 F 3 B 0 3 5 6

publication and/or related products at any time without notice. No obligation shall be incurred, except 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, by photocopying, recording, or otherwise — without obtaining prior written permission from 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 the use of information, illustration, circuits equipment, or application examples in this publication.

 1 

Preface

The TOSLINE-S20LP is a Local Area Network (LAN) for Factory Automation (FA) system. Several kinds of TOSLINE-S20LP stations are available for interfacing various equipments, such as PLCs, computers, etc.

This manual describes How To Use the TOSLINE-S20LP stations for Programmable Controller T2N/T3H. The TOSLINE-S20LP enables high speed data linkage between multiple T2N/T3H.

Refer to the separate manual for the TOSLINE-S20LP Loader software (S-LS) operations. In this manual, the following abbreviations are used.

• S20LP: TOSLINE-S20LP system

• S-LS: TOSLINE-S20LP Loader Software

• S20LP-station: TOSLINE-S20LP station for T2N and/or T3H

• STN #n: Station number n

For details of the programmable controllers T2N, T3H and their programming software T-PDS, refer to the related manuals for these controllers.

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 2 

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Contents

PREFACE............................................................................................................................................. 2

CONTENTS.......................................................................................................................................... 3

1. INTRODUCTION TO S20LP ........................................................................................................... 4

1.1 SYSTEM CONFIGURATION.......................................................................................................................... 4

1.2 STATION HARDWARE................................................................................................................................. 5

1.3 S-LS OVERVIEW........................................................................................................................................ 9

1.4 SPECIFICATIONS ..................................................................................................................................... 11

2. SCAN TRANSMISSION OVERVIEW............................................................................................ 12

3. SETTING FOR DATA LINKAGE .................................................................................................. 14

3.1 STATION NUMBER SETTING.....................................................................................................................14

3.2 SETTINGS ON T-PDS............................................................................................................................... 14

3.3 SETTINGS ON S-LS.................................................................................................................................. 21

3.4 DATA LINKAGE EXAMPLE........................................................................................................................ 27

4. CABLE CONNECTIONS ............................................................................................................... 31

5. RAS FUNCTION............................................................................................................................ 32

5.1 BEHAVIOR IN TROUBLE........................................................................................................................... 32

5.2 SELF-DIAGNOSTIC FUNCTION.................................................................................................................. 33

5.3 LED INDICATION.................................................................................................................................... 34

5.4 RAS INFORMATION MONITORED IN T2N/T3H........................................................................................ 35

5.5 RAS INFORMATION MONITORED ON S-LS .............................................................................................. 38

6. EXPANDED DATA TRANSFER INSTRUCTION ......................................................................... 42

6.1 INSTRUCTION SPECIFICATION ................................................................................................................ 42

7. MESSAGE TRANSMISSION......................................................................................................... 46

7.1 MESSAGE TRANSMISSION........................................................................................................................46

7.2 COMPUTER LINK PROTOCOL.................................................................................................................... 46

7.3 PC LINK PROTOCOL ................................................................................................................................ 46

APPENDIX......................................................................................................................................... 62

A.1 SCAN CYCLE ........................................................................................................................................... 62

A.2 T-PDS REMOTE PROGRAMMING............................................................................................................. 64

 3 

1. Introduction to S20LP

OTR2

OTR1

1.1 System configuration

The following figure shows the typical system configuration of the S20LP.

T2N T3H

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T2N

internal bus

Station No.1

S20LP Port

(Main terminal station) (Back-up terminal station)

(General station) (General station)

OTR1OTR1 OTR2OTR2

SN325

T3H PCS

PTLS9

Transmission line 1 (Loop 1) : The data is sent from OTR1 to OTR2. Transmission line 2 (Loop 2) : The data is sent from OTR2 to OTR1.

Total number of stations Max. 64 stations

T3H

I/O bus

Station No.2

SN325

(General station)

OTR1 OTR2

External

Loop

Device

Transmission distance 1 km (between stations)

4 km (between stations ; connecting SBR22)

30 km (system totla) Scan transmission capacity 4096 words Maximum transmission capacity 1024 words / station Parameter setting tool S-LS (runs on personal computer)

(Note 1) SBR22 is the long distance repeater for S20LP

 4 

1.2 Station hardware

for CPU

• Overview

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T2N include of S20LP Port

PU245N

DIP switches

LOADER port

RUN FLT BAT

PROG

LINK

ERUN ET/R EACC

SRUN SONL SACC

STNH

STNL

OTR1

OTR2

10BASE-T

Status LEDs for Ethernet Port

Status LEDs for S20LP Port

Station number setting switches

For S20LP Port

Transmission cable connectors

For Ethernet Port

 5 

SN325

STN ONL

SCAN

ACC

LOOP

TX1 TX2

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Status LEDs

STNH

STNL

OTR1

OTR2

LOADER

RESET

Reset switch

Station number setting switches

Transmission cable connectors

 6 

LOADER port

• Status LEDs:

Indicate the status of the S20LP-station.(see Section 5.3)

S20LP port for T2N (PU245N)

SRUN Lit Station is normal

Not lit Down mode

SONL Lit Online mode (Scan transmission is executing)

Blink Standby mode (Scan transmission is not executing) Not lit Offline mode (Scan transmission is not executing)

SACC Lit T2N is accessing the port

Not lit T2N is not accessing the port

For SN325

STN Lit Station is normal

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Not lit Down mode

ONL Lit Online mode (Scan transmission is executing)

Blink Standby mode (Scan transmission is not executing) Not lit Offline mode (Scan transmission is not executing)

SCAN Lit Scan transmission is executing

Not lit Scan transmission is not executing

ACC Lit T3H is accessing the station

Not lit T3H is not accessing the station

LOOP Lit LOOP is normal (Cut off mode for main terminal station)

Not lit LOOP is abnormal

TX1 Lit TRM1/RCV2 is normal

Not lit TRM1/RCV2 is abnormal

TX2 Lit TRM2/RCV1 is normal (Note 1)

Not lit TRM2/RCV1 is abnormal (Note 1)

(Note 1) When the SN325 operates a terminal station, this LED is normally not lit.

 7 

• Station number setting switches:

Used to set the station number. (allowable setting is 1 to 64) The setting status is read at power-on.

STNH ................ 10’s digit

STNL ................ 1’s digit

• Loader port:

Used to connect the S-LS (or T-PDS for remote programming / monitoring). T2N (PU245N) changes DIP switch (P/S) “ON”.

• Transmission cable connector(s):

Used to connect optical fiber cables. (see Section 4)

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• Reset switch (only SN325):

Used to reset a SN325.

 8 

1.3 S-LS overview

The S-LS (TOSLINE-S20 Loader System) on a personal computer (PC) monitors station conditions, reads/writes control data, and sets up parameters. The transmission parameters set by S-LS is stored in the S20LP-station's built-in EEPROM.

Connection between S-LS and S20LP-station is made by an loader cable, that is the same cable as for T-PDS.

The following are the details of the menu. Select an intended station in the Station Connection Diagram window for display and specify the window in the menu or the toolbar.

[File]

[Display Scan Address List] Displays the Scan Address List window. [Display Station Down Information] Displays Down Information when the local station is downed. [Save Files All Station’s Information] Saves the setup information of all stations in the file. [Exit] Terminates the application.

[Menu]

[Setting Information] Displays the Setting Information window. [Data Access] Displays the Data Access window. [RAS Information]

[Online Map] Displays the Online Map window. [Scan Healthy Map] Displays the Scan Healthy Map window. [Loop Map] Displays the Loop Map window. [Station Status] Displays the Station Status window. [Station Down Information] Displays the Station Down Information. [RAS Counter Information] Displays the RAS Counter Information [Online/Standby Request] Displays the Online/Standby Request window.

[Test Request] Displays the Test Request window.

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[Option]

[Station Display Position] [Registration] Registers the display positions of the stations rearranged. [Display] Reflects the display positions of the registered stations in the window. [Normal] Displays the stations rearranged in the ascending order of smaller display

position numbers.

[Communication Environment Setting] Displays the Communication Environment Setting window.

[Window]

[Display Small Size] Displays the Station Connection Diagram in small size.

[Help]

[Contents] Displays the Help window. [Key Word Search] Displays the Retrieve window in Help. [Version Information] Displays the information of the application version.

 9 

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The toolbar has buttons for the functions frequently used. The following buttons are found from left to right.

[Exit button] Exits the application. [Setting Information button] Displays the Setup Information window. [Data Access button] Displays the Data Access window. [RAS Information button] Displays the RAS Information Menu window. [Online/Standby Request button] Displays the Online/Standby Request window. [Test Request button] Displays the Test Request window.

 10 

1.4 Specifications

S20LP system specifications

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Transmission cable

Cable connection (cable side connector) Transmission distance Max. 1 km (between stations)

Topology Loop Number of stations Max. 64 stations Transmission speed 2 Mbps Transmission code Differential Manchester Modulation method Baseband Communication service (1) Scan transmission (cyclic broadcast)

Silica glass SI 200/230µm H-PCF (Hard-Plastic Clad Fiber) F07 connector (JIS C5976)

Max. 4 km (between stations ; connecting SBR22) Max. 30 km (system total)

(2) Message transmission (on request)

S20LP-station specifications

S20LP port for T2N S20LP-station for T3H Station type PU245N...Optical fiber SN325...Optical fiber Max. number on

T2N/T3H

Scan transmission capacity

Message transmission support

1 station

2 stations (Note 1) (Include of S20LP port) 4096 words (Link register W (2048 words) in T2N/T3H is assigned) S-LS (primary / secondary) T-PDS (primary / secondary) T-series Computer Link Protocol (secondaty)

RAS information Station status, Online / Standby map (S20LP port / SN325) Consumed current

S20LP port ... 1.5 [A] or less SN325 ... 800 [mA] or less

(internal 5Vdc)

(Note 1) A T3H which has two S20LP-stations can work as a bridge station for two S20LP

layers.

 11 

2. Scan transmission overview

The Scan transmission method is suitable for real time control data linkage.

In the S20LP, data sending station is rotated cyclically. Each station has common memory for Scan transmission. The size of the common memory is 4096 words. When a station becomes the data sender station, it sends data of prespecified area of the common memory. All other stations receive the data, and store them into their common memory. Therefore, the common memory in each station is totally updated in a transmission cycle.

The common memory is allocated to the Link register (W) in the T2N/T3H. The size of the link register is 2048 words. The link register is a part of common memory. By simply reading/writing data from/to the Link registers, high speed data linkage is achieved.

S20LP

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STNT2N

Common

memory

(1)

Send

(2)

Receive

(3)

Receive

T2N’s Link

Write

Read

STNT2N

Common

memory

(1)

Receive

(2)

Send

(3)

Receive

T2N’s Link

Read

Write

Read

STNT3H

Common

memory

(1)

Receive

(2)

Receive

(3)

Send

T3H’s Link

Read

Write

Note 1) The data send block(s) of each station is prespecified by using the S-LS. Note 2) Data transfer between common memory and Link registers is executed by T2N/T3H's

OS. The transfer direction (read or write) is automatically decided.

 12 

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Main terminal station, back-up terminal station and general station

When power is applied to each S20LP-station, one station must have station address number 1. The station of station number 1 becomes the main terminal station. The station of station number 2 becomes back-up terminal station. Normally stations, except station number 1, become the general stations. The main terminal station controls total timing of the S20LP network. If main terminal station is down, back-up terminal station (station number 2) becomes main terminal station on condition that the back-up enable flag is ON. If the back-up enable flag is OFF, back-up terminal is general station. If both the station of station number 1 and 2 is down, all stations become general station.

To be effective back-up terminal station, the address (1F44H) on the S20LP dual port memory must be set ON. To set the S20LP dual port memory, use the write instruction. Detailed information of write instruction see “T-series Instruction Set (Ladder, SFC)” (UM-TS03***E004).

Setting the "data send block" (by S-LS)

On each station, the "data send block" is prespecified by using the S-LS. This setting is made by entering the starting addess and the size (number of send words). On a station, up to two "data send blocks" can be specified. (see Section 3.3)

I/O allocation and network assignment (by T-PDS)

On each T2N/T3H, the I/O allocation for S20LP-station and the network assignment are necessary. By using the T-PDS's I/O allocation function, allocate the S20LP-station as "TL-S" (T3H) or E/S (T2N). And by using the T-PDS's Network assignment function, assign (set "LINK" or "GLOBAL") the Link registers (W) to the S20LP-station's common memory (from 0 to 2048), Block by Block. (see Section 3.2)

Block 1: W0000 to W0063 Block 17: W1024 to W1087 Block 2: W0064 to W0127 Block 18: W1088 to W1151 Block 3: W0128 to W0191 Block 19: W1152 to W1215 Block 4: W0192 to W0255 Block 20: W1216 to W1279 Block 5: W0256 to W0319 Block 21: W1280 to W1343 Block 6: W0320 to W0383 Block 22: W1344 to W1407 Block 7: W0384 to W0447 Block 23: W1408 to W1471 Block 8: W0448 to W0511 Block 24: W1472 to W1535 Block 9: W0512 to W0575 Block 25: W1536 to W1599

Block 10: W0576 to W0639 Block 26: W1600 to W1663 Block 11: W0640 to W0703 Block 27: W1664 to W1727 Block 12: W0704 to W0767 Block 28: W1728 to W1791 Block 13: W0768 to W0831 Block 29: W1792 to W1855 Block 14: W0832 to W0895 Block 30: W1856 to W1919 Block 15: W0896 to W0959 Block 31: W1920 to W1983 Block 16: W0960 to W1023 Block 32: W1984 to W2047

T2N/T3H accesses the common memory only for the assigned Blocks. (This "Block" and S20LP's "Data send block" are different.)

"LINK" is normal assignment setting. "GLOBAL" is the setting for multi layers Scan transmission. (effective only in T3H)

 13 

3. Setting for data linkage

3.1 Station number setting

Each station should have unique station number. If a station number is duplicated, the S20LP network cannot be established. Allowable station number is 1 to 64. To set the station number, two rotary switches (STNH and STNL) are provided on each station. STNH is for 10's digit setting, and STNL is for 1's digit setting.

(For example)

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STNH = 1 STNL = 5

3.2 Settings on T-PDS

The following settings are necessary for the T2N/T3H on which the S20LP-station is mounted.

(1) I/O allocation

Allocate the S20LP-station as "TL-S". <T-PDS screen example 1>

P: PLC

Station number is 15

A: I/O Allocation A: I/O Allocation

 14 

(2) Network assignment a) Set "LINK" for the Blocks to be assigned.

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S20LP-station

common memory

Receive

T2N/T3H

W registers

Network

assignment

Block 1

W000-063 LINK

Block 2

100 W064-127 LINK

Send Block 3

W128-191 LINK

Block 4

230 W192-255 LINK

Block 5

W256-319

Receive

. . .

Block 32

2047

W1983-2047 LINK

 15 

<T-PDS screen example 2>

P: PLC

A: I/O Allocation N: Network Assignment

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 16 

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b) If two S20LP-stations are mounted on the T3H, the station which is allocated closer to the

CPU in the I/O allocation (see (1)) is assigned as CH1. And the other is assigned as CH2. (CH2 is invalid for T2N)

CH1

Network

assignment

LINK

CH1

S20LP-station

common memory

T3H

W registers

CH2

S20LP-station

common memory

Block 1 Send

Receive LINK

Block 2

Block 3

Send Block 4

CH2

Network

assignment

LINK

LINK Receive

Block 5

LINK

Block 6

Receive

. . . .

Block 32

LINK

 17 

<T-PDS screen example 3>

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 18 

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c) If two S20LP-stations are mounted on the T3H and multi layers Scan transmission function

is used, use the "GLOBAL" setting. (GLOBAL is invalid for T2N)

CH1

Network

assignment

LINK

CH1

S20LP-station

common memory

T3H

W registers

CH2

S20LP-station

common memory

Block 1 Send 1

Receive LINK

Block 2

Block 3

Send 1 Block 4

CH2

Network

assignment

LINK

GLOBAL

GLOBAL Send 2

Receive

Block 5

Block 6

Block 7

Block 8

Block 9 Send 2

Block 10

. . . .

Receive

GLOBAL

LINK

 19 

Block 32

<T-PDS screen example 4>

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Note) The following rules are applied to the Network assignment. Do not set LINK both for

CH1 and CH2 for the same Block. If duplicated, CH1 has priority. In the GLOBAL setting Block, the "receive" side CH data is transferred to the W register

and the "send" side CH. In this case, GLOBAL can be set on either CH. In the GLOBAL setting Block, if both CHs are specified as "send", the W register data is

transferred to both CHs. In the GLOBAL setting Block, if both CHs are specified as "receive", the GLOBAL

setting CH data is transferred to the W register. If both CHs have been set as GLOBAL, CH1 has priority.

If TOSLINE-30 is used together, the TOSLINE-30 is allocated to the W registers from the lowest address. In this case, the W registers which are assigned to the TOSLINE-30 should not be assigned to the S20LP. (TOSLINE-30 is available only for T2N)

 20 

3.3 Settings on S-LS

(1) Start-up the S-LS

Connect the S-LS (personal computer) and the S20LP-station by the loader cable. Start-up

the S-LS for Windows95. (2) Turn the T2N/T3H to HALT (3) Confirm the S20LP-station status

Confirm the status of the connected S20LP-station is "STANDBY" by right and upper side.

It is displayed on the S-LS screen as below.

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 21 

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(4) Settings of data send block. Operate the S-LS as follows.

Select menu and Setting Information or click the right side of mouse and select setting

information.

 22 

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Select the "Station Number" of the connected S20LP-station. Select the "Scan Transmission" and specify the "data send block(s)". The "data send block" is specified by entering the starting address (Send Starting Address 1/2) and the size (Number of Send Words 1/2). Up to two "data send blocks" can be specified. If "data send block 2" is not used, enter 0 both for Send Starting Address 2 and Number of Send Words 2. The maximum size of send words is Number of Send Words 1 and 2, total 1024 words.

 23 

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Write the settings into the S20LP-station. Press "OK" button. When the settings are correctly written into the S20LP-station's EEPROM, it is displayed on the

screen as below.

 24 

(5) Settings of station control information

Open the "Setting Information", and push the "Station Control" by mouse.

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• Scan Transmission

Enable/disable the Scan transmission. Select Enable to use the Scan transmission function.

• Scan Access

Scan data synchronization 1 word or 2 words. If 2W (2 words) is selected, data synchronization of double-word data (lower even and higher odd addresses) is achieved. In this case, 2W setting is needed both on the sender and receiver stations. Also, if 2W is selected, Send Start Address and Send Word Number must be even number.

• Message Transmission

Enable/disable the Message transmission. The Message transmission is used for S-LS remote setting/monitoring, T-PDS remote programming, T-series computer link protocol and PC link protocol. Normally select Enable.

• Start with Standby mode

When this space is not checked, Scan transmission is automatically started at power-up. When this space is checked, Scan transmission is not started until Online request is issued by S-LS. Normally no check.

 25 

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• Target Scan Time

A time factor for limiting the time assigned for the Message transmission. The actual Scan time (time of Token passes all stations) is either longer one the Target Scan time or time for Scan transmission. (see Apendix A.1)

The Target Scan time should be the same value in all stations connected to the S20LP network (layer). The Target Scan time can be selected from the combo box, select the target cycle time you want to set. Click on the "OK" or "Renew" button. The data you set is transmitted to the corresponding station.

3.07 8.19 13.3 24.6 45.1

4.10 9.22 14.3 28.7 49.2

5.12 10.2 15.4 32.8 53.2

6.14 11.3 16.3 36.9 57.3

7.17 12.3 20.5 41.0 61.4

(Note 1) If Message transmission cannot work normally or a S20LP-station becomes Error down

by Receive buffer overflow, the time for Message transmission is not enough. In such case, increase the Target Scan time value.

When the settings are correctly written into the S20LP-station's EEPROM, it is displayed

on the screen as below.

(6) Change connection to other stations, and repeat (2) to (5).

S-LS remote setting (without changing connection) is also available by selecting the station number. In this case, change the station mode to "STANDBY" by S-LS before setting. After all setting complete, change the station mode to “ONLINE” by S-LS.

 26 

3.4 Data linkage example

STN #1 STN #2 STN #3

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T3H S20

W000

W0199 W0200

W0249 W0250

W0299 W0300

-LP

I/O T2N S20

-LP

I/O T2N S20

-LP

Send Receive Receive

Receive Send No use

Receive No use Send

No use No use No use

I/O

W2047

common

memory

(2k words)

No use No use No use

Link register (W) can not use Common memory over 2048 words.

STN #1 T3H sends 200 words data (W0000 to W0199) to STN #2 and #3 T2Ns. STN #2 T2N sends 50 words data (W0200 to W0249) to STN #1 T3H. STN #3 T2N sends 50 words data (W0250 to W0299) to STN #1 T3H.

 27 

6 F 3 B 0 3 5 6

Necessary settings for this data linkage configuration are as follows.

• Settings on T-PDS

Allocate the S20LP-station as "TL-S" (for T3H) by using the automatic I/O allocation command or the manual I/O allocation function of the T-PDS in T3H. And automatically allocate the S20LP-station as "E/S" in T2N.

By using the Network assignment function of the T-PDS, sssign the Blocks to cover the using W registers.

For STN #1 T3H and STN #3 T2N: set LINK for Blocks 1 to 5 (W0000 to W0319)

For STN #2 T2N: set LINK for Blocks 1 to 4 (W0000 to W0255)

 28 

• Setting on S-LS

Station Number 1 2 3 Send Start Address 1 0000 0200 0250 Send Word Number 1 0200 0050 0050 Send Start Address 2 0000 0000 0000 Send Word Number 2 0000 0000 0000 Scan Transmission Enable Scan Access 1 Word Message Transmission Enable Target Scan Time 61.4 msec

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Start with Standby mode

<S-LS setting screen 1 for STN #2>

No.

 29 

<S-LS setting screen 2 for STN #2>

6 F 3 B 0 3 5 6

 30 

4. Cable connections

Max. 1 km (between station)

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Max. 30 km (total)

OTR OTR 1 2

S20LP station S20LP station S20LP station

Optical fiber cable

OTR OTR 1 2

Optical fiber cable

(Note 1) Optical fiber connect OTR1/OTR2 to another station's OTR2/OTR1. (Note 2) Using the long distance of optical fiber (SBR22) is Max. 4 km between station.

Item Type

Optical fiber cable H-PCF (Hard-Plastic clad fiber)

200/230 µm

Optical connector F07 connector (JIS C5976)

Optical fiber characteristic Material Silica glass, Step index Core diameter Cladding diameter

200 ± 5µm

230 + 0, -10µm Numerical Aperture 0.4 Attenuation 7.0 dB/km or less Bandwidth 9 MHz•km or more Wavelength

(Note 1) Securely connect the optical connectors. Otherwise, connection loss will increase. (Note 2) Do not bend the optical fiber cable/cord more than the allowable limit. (Note 3) Clamp the optical fiber cable/cord to prevent the optical connector weighted.

0.81µm

 31 

5. RAS function

5.1 Behavior in trouble

(1) Optical fiber system

• Station down

If a station (either main, back-up or general) becomes down, the abnormal station will be disconnected from the S20LP system (re-configuration), then communications of remaining stations will be re-started. If two station (either main, back-up or general terminals) become power off, the S20LP system will split into two independent S20LP systems at the power off stations.

S20LP loop No.1

S20LP

STN #1

OTR1 OTR2 OTR1 OTR2

OTR2 OTR1

S20LP

STN #2

OTR2 OTR1

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Power off

S20LP

STN #3

OTR2

OTR1

S20LP

STN #6

OTR1

OTR2

OTR1 OTR2 OTR1 OTR2

OTR2 OTR1

S20LP

STN #5

OTR2 OTR1

OTR2

OTR1

S20LP

STN #4

OTR1

OTR2

Power off

S20LP loop No.2

• Transmission cable breakage

If both transmitter and receiver lines are broken (*1) or if one of the two lines is broken (*2), the S20LP system will cut off the broken lines.

Broken lines

OTR1 OTR2 OTR1

OTR2 OTR1 OTR2

S20LP

STN #l

To S20LP STN #o

To S20LP STN #n

OTR2

OTR1

S20LP

STN #m

(*2)

 32 

(*1)

5.2 Self-diagnostic function

The S20LP-station has the following self-diagnostic function.

• At initialization (at power on)

Diagnostic item Station operation abnormal ROM BCC check Station moves into Down mode. RAM read/write check Communications with other stations are CPU and peripheral LSI check not possible. This state will be reset by Station number check power off/on (SN325, T2N) or pressing

6 F 3 B 0 3 5 6

Reset switch (SN325). Transmission parameter (EEPROM) check

Station moves into Standby mode. In

this state, scan transmission is not

possible but message transmission is

available. Station waits for transmission

parameter setting.

• During operation

Diagnostic item Station operation abnormal Watch dog timer check Station moves into Down mode. Abnormal timer check (jabber timer) check

Receive frame check (CRC check) Station ignores the abnormal frame. Response check In message transmission, if response

No signal state check If no signal state continues more than

Communications with other stations are not possible. This state will be reset by power off/on (SN325, T2N) or pressing Reset switch (SN325).

from the target station cannot be received, station re-sends the frame.

specified time, station starts reconfiguration operation.

 33 

5.3 LED indication

(1) SN325

The S20LP-station is equipped with STN, ONL and SCAN LEDs, which indicate the station modes.

STN ONL SCAN Station mode Remarks Lit Lit Lit Online Scan / Message transmission is enabled

Lit Not lit Not lit Offline Scan / Message transmission is disabled Lit Blink Not lit Standby Transmission parameter is not written in

Not lit Blink Blink Down Station number is illegal

6 F 3 B 0 3 5 6

Not lit Online Scan transmission is disabled Message

transmission is enabled

EEPROM. Transmission information is standby start up. Connection machines is abnormal. T3H is not RUN mode.

(simultaneously) Blink Not lit Down Jabber timeout Not lit Not lit Down Receive buffer is overflow.

Target cycle time is shortage. Blink Blink Down Watch dog timer error (alternately)

(2) T2N

The S20LP-station is equipped with RUN and SONL LEDs, which indicate the station

modes.

SRUN SONL Station mode Remarks Lit Lit Online Scan / Message transmission is enabled Lit Not lit Offline Scan / Message transmission is disabled Lit Blink Standby Transmission parameter is not written in EEPROM.

Transmission information is standby start up. Connection machines is abnormal. T2N is not RUN mode.

Not lit Blink Down Station number is illegal.

Jabber timeout. Watch dog timer error.

Not lit Not lit Down Receive buffer is overflow.

Target cycle time is shortage.

 34 

5.4 RAS information monitored in T2N/T3H

RAS information of the S20LP system is reflected in the special registers (SW) of T2N/T3H. This information can be referred in the T2N/T3H’s user program.

SW110 CH1 station status (1 word) SW111 CH2 station status (only T3H) (1 word) SW112

CH1 online map (4 words)

SW116

CH2 online map (only T3H) (4 words)

SW120

CH1 standby map (4 words)

6 F 3 B 0 3 5 6

SW124

SW128

CH2 standby map (only T3H) (4 words)

Loop map (only T2N) (32 words)

 35 

(1) Station status

Indicates the status of the S20LP-station mounted on the T2N/T3H.

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

SW110 (SW111) a b c d e f g h I j k l m

a = 1 : DOWN mode b = 1 : OFFLINE mode c = 1 : STANDBY mode d = 1 : ONLINE mode e = 1 : LOOP2 reception disabled

0 : LOOP2 reception enabled

f = 1 : LOOP1 transmission disabled

0 : LOOP1 transmission enabled

g = 1 : LOOP1 reception disabled

0 : LOOP1 reception enabled

6 F 3 B 0 3 5 6

h = 1 : LOOP2 transmission disabled

0 : LOOP2 transmission enabled

i = 1 : Repeat status

0 : Cut status

j = 1 : Terminal station mode

0 : General station mode

k = 1 : Scan transmission disabled

0 : Scan transmission enabled

l = 1 : Master station

0 : Slave station

m =1 : Test in progress

(2) Online map

Indicates the online stations in the S20LP network.

F E D C ................... 3 2 1 0

SW112 (SW116) #16 #15 #14 #13 #4 #3 #2 #1 SW113 (SW117) #32 #31 #30 #29 #20 #19 #18 #17 SW114 (SW118) #48 #47 #46 #35 #36 #35 #34 #33 SW115 (SW119) #64 #63 #62 #61 #52 #51 #50 #49

#n = Station number n is online

= Station number n is other than online

 36 

6 F 3 B 0 3 5 6

(3) Standby map

Indicates the standby stations in the S20LP network.

F E D C ................... 3 2 1 0

SW120 (SW124) #16 #15 #14 #13 #4 #3 #2 #1 SW121 (SW125) #32 #31 #30 #29 #20 #19 #18 #17 SW122 (SW126) #48 #47 #46 #35 #36 #35 #34 #33 SW123 (SW127) #64 #63 #62 #61 #52 #51 #50 #49

#n = 1: Station number n is standby

= 0: Station number n is other than standby

(4) Loop map (Only T2N)

Indicates the S20LP-station's loop transfer status on network. This information is the through / terminal status of general station, or the repeat/cut off status of terminal station. This information is updating every 200ms.

F E D C B A 9 8 7 6 5 4 3 2 1 0 SW128 Station 2 information Station 1 information SW129 Station 4 information Station 3 information

SW159 Station 64 information Station 63 information

Indicates the detailed station information.

Station (n + 1) Station (n)

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

Unused a b c Unused a b c

a : This bit indicates repeat or cut off status. This status has terminal station or back-up

station. 1 : Repeat 0 : Cut off

b : This bit indicates R1T2 status. This status has general station.

1 : Disconnect 0 : Connect

c : This bit indicates R2T1 status. This status has general station.

1 : Disconnect 0 : Connect

 37 

5.5 RAS information monitored on S-LS

By connecting the S-LS, the following RAS information can be monitored.

(1) Online map

(Menu)

R: RAS Information

1: Online Map

6 F 3 B 0 3 5 6

The number (1-64) on the screen shows the Station number.

The operation mode displayed under the Station number means as follows.

(Blue) Online mode

(Red) Standby mode

Blank Offline mode or not existing

This information is read out from the S-LS connecting station every three seconds.

 38 

6 F 3 B 0 3 5 6

If the S-LS connecting station is Offline or Down mode, the following message will be displayed right and upper side on the screen.

Self Station Station No.01 Offline

 39 

(2) Station status

The operation status of the specified station can be monitored as follows.

1. Select the "Station Number".

6 F 3 B 0 3 5 6

2. Click the "Status Display".

 40 

(3) Station down information

If the S-LS connecting station is in Down mode, the error message can be monitored as follows.

R: RAS Information

4: Station Down Information

6 F 3 B 0 3 5 6

Possible error message are as follows.

Error code Error message meanings

10H Watch dog timer error Watch dog timer error occured 20H Overrun Reception transaction is overrun 40H Jabber timeout Abnormal long frame (500ms or more) was

transmitted

60H Hardware error CPU, RAM, ROM or peripheral LSI is abnormal

Station number illegal

6FH Undefined instruction

executing

77H Receive buffer overflow Receive buffer overflow occurred

CPU could not execute the instruction

If these errors cannot be reset by power off/on again (except Station number illegal),

replace the station.

 41 

6. Expanded data transfer instruction

6.1 Instruction Specification

This section presents an overview of the XFER instructions, which is the instruction that is used to control the S20LP-station from T2N/T3H user programs. S20LP-station transmission control is performed solely using the XFER instructions.

(1) Instruction format

The format of XFER instruction.

Input Output

[A XFER B → C]

(2) Function

6 F 3 B 0 3 5 6

When the input is ON, data block transfer is performed between the source which is indirectly designated by A and A+1 and the destination which is indirectly designated by C and C+1. The transfer size (number of words) is designated by B. The transfer size is 1 to 256 words.

Input Operation Output ERF

OFF No execution OFF ON Normal execution OFF

When error is occurred ON SET

−

(3) Operand

Operand

Name Device Register INDEX Index

X Y S L R Z XWYWSWLWRWW T C D F IWOWI J K

A Source parameter ü ü ü ü ü ü ü ü ü ü ü B Transfer size ü ü ü ü ü ü ü ü ü ü ü C Destination

parameter

ü ü ü ü ü ü ü ü ü ü

Constant

 42 

6 F 3 B 0 3 5 6

(4) Parameter and construction

Source parameter Transfer size and status Destination parameter

A Bank/CH Type B Transfer size C Bank/CH Type

A+1 Leading address C+1 Leading address

Transfer parameter table

Transfer object Type Leading address Bank/CH Transfer size Status flag

T2N 0 to 127 1 to 128

XW/YW register

W register 01H 0 to 2047 0 1 to 256 None LW register 02H 0 to 255 0 1 to 256 None

RW register

T3H

T2N 0 to 255 T3H

00H

03H

0 to 511

0 to 999

0 1 to 256 None

1 to 256

None

D register 04H 0 to 8191 0 1 to 256 None

T2N 0 to 1023

F register

Expanded F register (IC memory card)

Expanded F register (T2N internal memory)

scan memory

(Note 1) When the communication is transfer source (receiving), the transfer size is 1 to 256.

When it is destination (transmitting), the transfer size is 1 to 128 for T3H, 1 to 32 for T2N.

T3H

T2N 1TOSLINE-S20LP T3H T2N 0 to 2047EEPROM T3H

03H

05H 0 to 8191 1 to 15 1 to 256 None

T 3 H

06H

05H 0 to 8191 1 to 3 1 to 256 None 2 N

10H 0 to 4095

20H

0 to 32767

0 to 65535 1 0 to 57343 2

0 to 8191

0 1 to 256 None

1 to 256 None

1 or 2

1 to 256 None

1 to 256 (Note 1)

None

 43 

6 F 3 B 0 3 5 6

(5) Sample program

This program transmit the data from TOSLINE-S20LP's scan data memory to T2N/T3H's D register. If the following program is executing, the data of the scan memory from 0000 to 0009 are transmitted to the data register from D0200 to D0209 (D register).

X0000

[00272 MOV RW003] [00000 MOV RW004] [00010 MOV RW005]

[00004 MOV RW020]

H0110 00010 H0004

[RW003 XFER RW005 RW020]

Source designation Transfer size Destination designation RW003 H01 H10 RW005 00010 RW020 H00 H04 RW004 00000 RW021 00200

Channel 1 S20LP 10 Words transfer D0200 (CPU register)

Scan memory address

[00200 MOV RW021]

• Operation

When X0000 is ON, 10 words data starting with scan memory address 0 is transferred to D0200 and after.

TOSLINE-S20LP T2N/T3H’s CPU

scan data memory source register designation

00001 D0200 00001 00100 D0201 00100 12345 D0202 12345

Transmit

03344 D0207 03344 11565 D0208 11565 00045 D0209 00045

 44 

6 F 3 B 0 3 5 6

Remarks

• When writing data into S20LP scan memory, confirm that the address range is S20LP's

data send block.

• If S20LP scan memory is accessed only by this XFER instruction, the network

assignment, i.e. "LINK" or "GLOBAL" setting, is not necessary.

• If W register is designated as source and destination, don't set the network assignment,

i.e. "LINK" or "GLOBAL".

 45 

7. Message transmission

7.1 Message transmission

The message transmission is text transmission to be performed communication on request. This transmission is following two protocol.

• Computer link protocol

• PC link protocol

7.2 Computer link protocol

The host machine can communicate to a T2N/T3H on the S20LP using the computer link protocol. Since this function executes the station and firmware, there is no need to create pecial user programs for the T2N/T3H using the slave station.

The host machine used this protocol can execute following process for the T2N/T3H.

6 F 3 B 0 3 5 6

• Upload or download user programs.

• Status observation (reading out RUN/HALT/ERROR status).

• Read or write register/device data.

• Execute control commands.

The computer link protocol cannot execute following process.

• T2N/T3H is Down mode.

• A S20LP-station except for ONLINE and STANDBY mode.

7.3 PC link protocol

This section presents an overview of the SEND and RECV instructions, which are the instructions that are used to control the S20LP-station from T2N/T3H user programs. S20LPstation transmission control (PC link protocol transmission) is performed solely using the SEND and RECV instructions. See the individual items for details on the actual requests sent to the S20LP.

The PC link protocol allows one T2N/T3H on network to write or read register data to another T2N/T3H.

When this function is used on the PC link slave station, there is no need to create special user programs for the T2N/T3H using the slave station.

 46 

6 F 3 B 0 3 5 6

Transmission port instruction busy/instruction execution in

The user program that runs on the T2N/T3H of the main station is discussed below.

(1) Instruction format

The format of SEND and RECV instruction

Input Output

[A SEND B]

Input Output

[A RECV B]

(2) Function

• SEND

This instruction sends the designated range of register data to another T2N/T3H through the network. The transfer source register (self-station) is designated by A+3 and A+4. The transfer destination register (target-station) is designation by A+5 and A+6. The transfer size (number of words) is designated by A+2. The maximum transfer size is 128 words.

• RECV

This instruction reads the designated range of register data from another T2N/T3H through the network. The transfer source register (target-station) is designated by A+5 and A+6. The transfer destination register (self-station) is designation by A+3 and A+4. The transfer size (number of words) is designated by A+2. The maximum transfer size is 128 words.

Input Operation Output ERF

OFF No execution OFF OFF ON Execution

progress (response wait) Response reception complete (normal complete) ON OFF Instruction error ON ON

OFF OFF

Operand

Name Device Register INDEX Index

X Y S L R Z XWYWSWLWRWW T C D F IWOWI J K

A Transfer parameter ü ü ü ü ü ü ü ü ü ü ü ü

Constant

B Status ü ü ü ü ü ü ü ü ü ü ü

 47 

6 F 3 B 0 3 5 6

(Note 1) ERF is the S0051 special relay. See the T-series Instruction Set for information on ERF

usage.

(Note 2) For these instructions, instruction execution starts at the point the input changes state

from off to on.

(Note 3) Since these instructions span multiple scans, applications must hold the input in the on

state until the output goes to the on state.

(Note 4) After instruction execution terminates, it is possible to start execution again by applying

a new input.

(4) Transfer parameters (A)

The data required for a request to the S20LP-station is set up in an area that starts in the register indicated by [A]. Then the application executes a SEND or RECV instruction. Here we present an overview of the structure of the transfer parameters.

A 2o H A + 1 A + 2

A + 3

CMD

Parameters

Module designation Command number: Normally 0H; request to loopback 000FH Parameters: This data differs depending on the type of

the request to the S20LP-station.

Module designation: Designates the S20LP module in the T2N/T3H. 2 (Module ID): Must be set to 2 for an S20LP-station. o(channel number): The values 1 and 2 are allocated in order starting closest to

the T3H. T2N must be set to 1.

(station number): This two-digit field set to another station number.

(Note 5) Do not modify the contents of the transfer parameters while an instruction execution is

in progress.

 48 

6 F 3 B 0 3 5 6

3: Complete

1: Error occurred at remote station.

(5) Status (B)

The status during the execution of a SEND or RECV instruction and after that instruction terminates is stored in the register shown at B. When TermSTS = 0BH, the detailed information (S20LP-station error information) will be loaded into the registers indicated at location B + 1.

The following figure shows the structure of the status information (register B) and following tables (TermSTS (Part1 and Part2) and detailed information) show the detailed information (register B +1).

B Status B+1 Detailed information

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

B 0

TermSTS

Only on an error 0: Error occurred at local station.

busy 0: Initial state

1: Transmission port busy

abn 0: Normal complete

1: Error complete

(Note 6) The user program must set bits C and D to 0 before first activating a SEND/RECV

instruction. Failure to do so will cause the SEND/RECV instruction to not complete. Also, do not write to the status during instruction execution. This will cause the SEND/RECV instruction to not complete.

status 0: Initial state

1: While send requesting 2: Send complete and while waiting

response

 49 

6 F 3 B 0 3 5 6

TermSTS

TermSTS Status Meaning

00H Normal complete 01H Register designation error • Occurs if a register other than XW, YW,W, LW, RW, D, F, T, C, or SW is

designated as the data storage register in one of the following requests. Requests: Remote station loopback, Register read/write.

• In a register read or write request, the request designated a read or write from a T register to a register other than a T register. (This also applies to C registers.)

02H Response timeout • Occurs if a response is not received within the designated time for a remote

station loopback or register read/write request.

03H Parameter error • Occurs if a value other than 2 is designated for the module ID.

• Occurs if a value other than 1 (T2N/T3H) or 2 (T3H) is designated for the channel number.

04H Register write protect • Occurs if an attempt to write is made when the remote registers were write

protected.

• Occurs if an attempt to read is made when the local registers were write protected.

05H (Reserved) 06H

Module error • Occurs if the module is down.

• Occurs if the master station of PC link times out

Initialization in progress • Occurs if the module is initializing.

07H No send channel (CH) 08H Invalid station number • Occurs if the local station address designated 0 or over 64.

09H Transfer size error • Occurs if either 0 or 129 or more words were designated for either a register

0AH Boundary error • Occurs if the specified area (start address + register range) does not exist in

0BH Transmission error • Occurs if the S20LP-station returns an error response.

0CH I/O no answer error 0DH

0EH Retry timeout error 0FH (Reserved)

IC card designation error (T3H)

(Reserved : T2N)

• Occurs if the corresponding S20LP-station is not installed.

• Occurs if the remote station address was set up the same local station

address.

read/write or a remote station loopback request.

the T2N/T3H data storage registers. Requests: Remote port loopback, Register read/write

Detailed information (the S20LP-station response status) is stored at B+1.

• Occurs if the T2N/T3H cannot access S20LP-station.

• Occurs if an error occurs when the T3H IC card is being used as register (expanded F register) in one of the following request.

(See the T3H Instruction Manual.) Request: Register read/write

1. Occurs if IC card is not setting up.

2. IC card type error

3. Register write protected

• Occurs if a T2N retransmission times out.

 50 

Detailed Information (Send completion status)

6 F 3 B 0 3 5 6

Error Code

Normal complete 81H The remote station normally received message frame from local station. Busy 90H The remote station is standby. Timeout A0H The answer frame for the transmitted message frame no returned from remote

Length error B0H Incorrect message frame length in remote station. Station mode error D0H Transmission prohibited state (local station) Transmission prohibited state (remote station) Format error F0H Occurs when there is a format error in the request text.

E0H

E8H

Description

station on time.

The local station is Offline. The local station cannot transmit message in the message transmission

prohibited state. The remote station cannot transmit message in the message transmission

prohibited state.

(Note 7) The code (detailed information) number, when SEND/RECV instruction is

completed, indicates send completion status.

 51 

6 F 3 B 0 3 5 6

(6) PC link protocol transmission (Data write)

The T series PC link protocol allows a T2N or T3H on a network to write register data to another T2N or T3H.

• Register write request (using the SEND instruction)

(a) Function

The register data designated by the local station (T2N/T3H) is written to the designated register on the remote station (T2N/T3H).

(b) Transfer parameters

A 2¨ H A+1 CMD = 0000H A+2 Transfer Size A+3 Register type (self-station) A+4 Leading address (self-station) A+5 Register type (target-station) A+6 Leading address (target-station) A+7 Response time limit

Module designation Command number: Normally 0H; request to loopback 000FH

1) Transfer register data length: 1 to 128 words

2) Local station register type code

3) Local station leading address

4) Remote station register type code

5) Remote station leading address

6) Response time limit

1) Transferred register data length Designates the transmission data length in word units. (1 to 128 words)

2) Local station register type code This code indicates the type of register in which the local station transmission source data

is stored.

3) Local station leading address Designates the leading address of the register designated by the local station register type

code.

4) Remote station register type code This code designates the type of register at the remote station to which the transmitted data

will be written. (see 7.3(6))Local station register code)

5) Remote station leading address Designates the leading address of the register designated by the remote station register type

code.

 52 

6 F 3 B 0 3 5 6

6) Response time limit Designates a time used to limit the response time from the remote station in 0.1 second

units.

F E 0

A+7

0: Use the user-specified value (0.1 to 3276.7 seconds) 1: Use the default value of 30 seconds.

This code indicates the type of register code in which the local or remote station transmission source data is stored. See “T-series Instruction Set (Ladder, SFC)” (UM-TS03***-E004).

RID Meaning RID Meaning

0000H XW/YW registers 0001H W register 0002H LW register 0007H T register 0003H RW register 0008H C register 0004H D register 0009H SW register

∗∗05H ∗∗06H

F register (0 - 8191) F register (0 - 65535)

*1 *2 *3 *3

*1 Includes the expansion F registers. One bank has 8k words (0 to 8191).

F 7 0

05H

Bank number...00H: T2N internal registers

F0000 to F1023

01H to 03H: Expansion F registers

F0000 to F8191

*2 Includes the expansion F registers(Only T3H). One bank has 64K words (0 to 65535).

F 7 0

Bank number...00H: T3H internal registers

F0000 to F32767

01H: Expansion F registers (IC card)

F0000 to F65535

02H: Expansion F registers (IC card)

F0000 to F57343

 53 

6 F 3 B 0 3 5 6

*3 The T and C registers hold data that has flags attached.

Supplement:

The transfer data length has a maximum of 323 words when data is transferred over the Ethernet.

For the T registers, it is not possible to designate a range that spans both the basic T registers (0 to 511) and the expansion T registers (512 to 999). The T3H has the expansion T register, but the T2N does not have.

F E D C B A 9 8 7 6 5 4 3 2 1 0 B 0 0 0 0 TermSTS B+1 Detailed information (Only valid when TermSTS = 0BH.)

(d) Important items

• The command number (0000H) is the same as the "Data Read".

• A transfer size error (TermSTS = 09H) occurs if the transferred register data length exceeds

the range 1 to 128 words (or 1 to 83 words for the T and C registers).

• A register designation error (TermSTS = 01H) occurs if a value other than a stipulated value

is designated for the register type codes (Register type (self/target-station)).

• A register designation error (TermSTS = 01H) occurs if 0007H (the T register) is designated

for the local station register type code and a register other than T register is designated for the remote station register type code. This also holds for the C register.

• A boundary error (TermSTS = 0AH) occurs if a range spanning both the base T registers

(0 to 511) and the expansion T registers (512 to 999) is designated for the T register.

• For data storage registers, a boundary error occurs if the designated area (leading address +

Local station : TermSTS = 0AH ; Remote station : TermSTS = 8AH

• A response time-out error (TermSTS = 02H) occurs if the response time from the remote station exceeds the time designated by the response time limit.

 54 

6 F 3 B 0 3 5 6

• Write protection can be designated for each register type on the local T2N/T3H by using the special coil settings described below. In this case, a register write protect error (TermSTS = 04H) will occur.

SW067

F 9 8 7 6 5 4 3 2 1 0

SW C T F D RW LW W XW/YW

Special registers

Counter registers

Timer registers

PC internal file registers

Expansion file registers (IC card)

Data registers

Link relay registers

Auxiliary registers

0:Write enabled 1:Write protected

Input/output registers

Link registers

• The write operation is not synchronized with the remote station T2N/T3H scan operation.

 55 

6 F 3 B 0 3 5 6

(7) PC link protocol transmission (Data read)

The T series PC link protocol allows a T2N or T3H on a network to read register data from another T2N’s or T3H’s registers into its own registers.

• Register read request (using the RECV instruction)

(a) Function

The register data designated by the remote station (T2N/T3H) is read to the designated register on the local station (T2N/T3H).

(b) Transfer parameters

Module designation Command number: Normally 0H; request to loopback 000FH

1) Transfer register data length: 1 to 128 words

2) Local station register type code

3) Local station leading address

4) Remote station register type code

5) Remote station leading address

6) Response time limit

1) Transferred register data length

Designates the transmission data length in word units. (1 to 128 words)

2) Local station register type code

This code indicates the type of register in which the local station transmission source data is stored.

3) Local station leading address

Designates the leading address of the register designated by the local station register type code.

4) Remote station register type code

This code designates the type of register at the remote station to which the transmitted data will be written. (see 7.3(6))Local station register code)

5) Remote station leading address

Designates the leading address of the register designated by the remote station register type code.

 56 

6 F 3 B 0 3 5 6

6) Response time limit

Designates a time used to limit the response time from the remote station in 0.1 second units.

F E 0

A+7

0: Use the user-specified value (0.1 to 3276.7 seconds) 1: Use the default value of 30 seconds.

F E D C B A 9 8 7 6 5 4 3 2 1 0 B 0 0 0 0 TermSTS B+1 Detailed information (Only valid when TermSTS = 0BH.)

(d) Important items

• The command number (0000H) is the same as the "Data Write".