Omron srm1 User Manual

Cat.No. W318–E1–4

CompoBus/S

SRM1(-V2)

Master Control Units

OPERATION MANUAL

CompoBus/S

SRM1(-V2) Master Control Units

Operation Manual

Revised May 2000

Notice:

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.

The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.

! DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

! WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

! Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or property damage.

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means “word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for anything else.

Visual Aids

The following headings appear in the left column of the manual to help you locate different types of information.

Note Indicates information of particular interest for efficient and convenient operation of the product.

1, 2, 3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

OMRON, 1997

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON.

No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.

v

TABLE OF CONTENTS

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xi
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xiii
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xiii
SECTION 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		1
1-1 SRM1 Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2
1-2	System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
1-3 Procedures From System Design to Test Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		7
1-4 I/O and Data Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		8
SECTION 2
Specifications and Components . . . . . . . . . . . . . . . . . . . .		11
2-1	Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
2-2	Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	15
SECTION 3
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . .		17
3-1	System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
3-2 Selecting an Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		19
3-3	Installing the SRM1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	20
3-4	Wiring and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
3-5	One-to-one NT Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	30
3-6	One-to-N NT Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	30
3-7 One-to-one PC Link Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		31
SECTION 4
Using the Programming Console . . . . . . . . . . . . . . . . . . .		33
4-1	Basic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	34
4-2	Programming Console Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	36
SECTION 5
Test Runs and Error Processing . . . . . . . . . . . . . . . . . . . .		59
5-1	Startup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	60
5-2	Entering the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	62
5-3	Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	71
5-4	Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	72
5-5 Programming Console Operation Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		75
5-6	Programming Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	75
5-7	Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	77
SECTION 6
Expansion Memory Unit . . . . . . . . . . . . . . . . . . . . . . . . . .		83
6-1	Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	84
6-2	Specifications and Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	85
6-3	Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	86

vii

	TABLE OF CONTENTS
Appendices
A Standard Models . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
B External Dimensions . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

viii

About this Manual:

The SRM1 is a special CompoBus/S controller that provides remote I/O with greatly reduced wiring. A distributed I/O system with up to 32 Slaves and 256 I/O points can be constructed. There are two manuals describing the setup and operation of the SRM1: The SRM1(-V2) Operation Manual (this manual) and the

CPM1/CPM1A/CPM2A/CPM2C/SRM1(-V2) Programming Manual (W353).

This manual describes the system configuration and installation of the SRM1 and provides a basic explanation of operating procedures for the Programming Consoles and introduces the capabilities of the SYSMAC Support Software (SSS). Read this manual first to acquaint yourself with the SRM1.

The CompoBus/S Operation Manual (W266) provides descriptions of the CompoBus/S system and Units.

The CPM1/CPM1A/CPM2A/CPM2C/SRM1(-V2) Programming Manual (W353) provides detailed descriptions of the SRM1’s programming functions. The SYSMAC Support Software (SSS) Operation Manuals: Basics (W247) and C-series PCs (W248) provide descriptions of SSS operations for the SRM1 and C-series PCs.

The SYSMAC-CPT Support Software Quick Start Guide (W332) and User Manual (W333) provide descriptions of ladder diagram operations in the Windows environment.

The WS02-CXPC1-E CX-Programmer User Manual (W361) and the CX-Server User Manual (W362) provide details of operations for the WS02-CXPC1-E CX-Programmer.

Please read this manual carefully and be sure you understand the information provide before attempting to install and operate the SRM1.

Section 1 describes the SRM1’s special features and functions and shows the possible system configurations.

Section 2 provides the technical specifications of the SRM1 and describes its main components.

Section 3 explains how to install and wire the SRM1. Be sure to follow the instructions contained here concerning the control panel, power supply, CompoBus/S transmissions, and RS-232C Port wiring.

Section 4 explains how to use the Programming Console. Be sure to read this section carefully if you are not already familiar with Programming Console operations.

Section 5 describes procedures for trial runs of SRM1 operation, self-diagnosis functions, and error processing to identify and correct the hardware and software errors that can occur during operation.

Section 6 describes how to use the CPM1-EMU01-V1 Expansion Memory Unit. Follow the handling precautions and procedures to properly use the Unit.

Appendix A provides a list of standard models.

Appendix B provides the external dimensions.

! WARNING Failure to read and understand the information provided in this manual may result in personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

ix

PRECAUTIONS

This section provides general precautions for using the SRM1 and related devices.

The information contained in this section is important for the safe and reliable application of the SRM1. You must read this section and understand the information contained before attempting to set up or operate a CompoBus/S System.

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		xii
2	General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xii
3	Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xii
4	Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiii
5	Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	xiii

xi

Safety Precautions

3

1 Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).

•Personnel in charge of installing FA systems.

•Personnel in charge of designing FA systems.

•Personnel in charge of managing FA systems and facilities.

2 General Precautions

The user must operate the product according to the performance specifications described in the operation manuals.

Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

This manual provides information for programming and operating the OMRON SRM1. Be sure to read this manual before attempting to use the software and keep this manual close at hand for reference during operation.

! WARNING It is extremely important that an SRM1 and all CompoBus/S Units be used for the specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a CompoBus/S System to the abovementioned applications.

3Safety Precautions

!WARNING Never attempt to disassemble any Units while power is being supplied. Doing so

may result in serious electrical shock or electrocution.

! WARNING Never touch any of the terminals while power is being supplied. Doing so may result in serious electrical shock or electrocution.

! WARNING Provide safety measures in external circuits (i.e., not in the Programmable Controller), including the following items, in order to ensure safety in the system if an abnormality occurs due to malfunction of the PC or another external factor affecting the PC operation. Not doing so may result in serious accidents.

•Emergency stop circuits, interlock circuits, limit circuits, and similar safety measures must be provided in external control circuits.

•The PC will turn OFF all outputs when its self-diagnosis function detects any error or when a severe failure alarm (FALS) instruction is executed. As a countermeasure for such errors, external safety measures must be provided to ensure safety in the system.

•The PC outputs may remain ON or OFF due to deposition or burning of the output relays or destruction of the output transistors. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

xii

Application Precautions

5

! WARNING When transferring programs to other nodes, or when making changes to I/O memory, confirm the safety of the destination node before transfer. Not doing so may result in injury.

! Caution Execute online edit only after confirming that no adverse effects will be caused by extending the cycle time. Otherwise, the input signals may not be readable.

4 Operating Environment Precautions

Do not operate the control system in the following places.

•Where the SRM1 is exposed to direct sunlight.

•Where the ambient temperature is below 0° C or over 55° C.

•Where the SRM1 may be affected by condensation due to radical temperature changes.

•Where the ambient humidity is below 10% or over 90%.

•Where there is any corrosive or inflammable gas.

•Where there is excessive dust, saline air, or metal powder.

•Where the SRM1 is affected by vibration or shock.

•Where any water, oil, or chemical may splash on the SRM1.

!Caution The operating environment of the CompoBus/S System can have a large effect

on the longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the CompoBus/S System. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.

5 Application Precautions

Observe the following precautions when using the SRM1.

! WARNING Failure to abide by the following precautions could lead to serious or possibly fatal injury. Always heed these precautions.

•Always turn off the power supply to the SRM1 before attempting any of the following.

•Assembling any devices or racks.

•Connecting or disconnecting any cables or wiring.

!Caution Failure to abide by the following precautions could lead to faulty operation of the

SRM1 or the system or could damage the SRM1 or CompoBus/S Units. Always heed these precautions.

•Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes.

•Construct a control circuit so that power supply for the I/O circuits does not come ON before power supply for the Unit. If power supply for the I/O circuits comes ON before power supply for the Unit, normal operation may be temporarily interrupted.

•If the operating mode is changed from RUN or MONITOR mode to PROGRAM mode, with the IOM Hold Bit ON, the output will hold the most recent status. In such a case, ensure that the external load does not exceed specifications. (If operation is stopped because of an operation error (including FALS instructions), the values in the internal memory of the CPU Unit will be saved, but the outputs will all turn OFF.)

xiii

Application Precautions

5

•Use the Units only with the power supplies and voltages specified in the operation manuals.

•Take measures to stabilize the power supply to conform to the rated supply if it is not stable.

•Provide circuit breakers and other safety measures to provide protection against short-circuiting in external wiring.

•Install all Units according to instructions in the operation manuals.

•Do not install the Units in a place where they are subject to excessive noise in order to avoid any trouble or malfunction.

•Be sure that all the mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in the relevant manuals. Incorrect tightening torque may result in malfunction.

•Double-check all the wiring before turning ON the power supply. Incorrect wiring may result in burning.

•Do not attempt to take any Units apart, to repair any Units, or to modify any Units in any way.

•Do not apply any impact to the Units.

•Use the cables specified in this manual and in reference manuals. Use crimp terminals when wiring the terminal block.

•Use a signal wire duct that is separate from the one used for high-tension lines or power lines.

•Be sure to confirm that the switch settings and wiring are correct before turning on the power supply.

•Check the user program for proper execution before actually running it on the Unit. Not checking the program may result in an unexpected operation.

•Confirm that the user programs run properly.

•Confirm that no adverse effect will occur in the system before attempting any of the following. Not doing so may result in an unexpected operation.

•Changing the operating mode of the PC.

•Force-setting/force-resetting any bit in memory.

•Changing the present value of any word or any set value in memory.

•Before touching the Unit, be sure to first touch a grounded metallic object in order to discharge any static build-up. Not doing so may result in malfunction or damage.

•Use, store, and transport the Units within the specifications provided in this manual.

•Resume operation only after transferring to the new SRM1 the contents of the DM and HR Areas required for resuming operation. Not doing so may result in an unexpected operation.

•Do not pull on the cables or bend the cables beyond their natural limit. Doing either of these may break the cables.

•Do not place objects on top of the cables. Doing so may break the cables.

•When replacing parts, be sure to confirm that the rating of a new part is correct. Not doing so may result in malfunction or burning.

•Be sure to observe local ordinances and laws when disposing the Units.

xiv

Application Precautions

5

! Caution The following precautions are necessary to ensure the general safety of the system. Always heed these precautions.

•Provide double safety mechanisms to handle incorrect signals that can be generated by broken signal lines or momentary power interruptions.

•Provide external interlock circuits, limit circuits, and other safety circuits in addition to any provided within the SRM1 to ensure safety.

!Caution Be sure to clear the memory before turning on the power supply to the delivered

SRM1. The contents of the Data Memory (DM), Hold Relay (HR), and Counter (CNT) Areas in the CPU Unit may be cleared and the AR 1314 flag (which turns ON when the power interruption hold area is not held) may turn ON.

! Caution Apply the SRM1 to a system that is not influenced by any undefined data even if the data in the DM, HR, or CNT area is cleared when the SRM1 has been turned off for a period exceeding the data backup period of the internal lithium battery. If the AR 1414 flag is ON, the data will be held unless it is turned OFF by the I/O Monitor, instructions, etc.

The system can be stopped by designating DM 6604 in the PC Setup so that a memory error occurs when the power interruption hold area is not held (with AR 1314 ON)

•A lithium battery in the CPU Unit is used to back up the counter values and the contents of the DM area, and HR area. The deterioration of the lithium battery capacity depends on the ambient temperature. The standard service life is 12 years under an ambient temperature of 40_C when operating 8 hours a day.

If the power remains off for a period exceeding the data backup period, the contents of the Data Memory (DM), Hold Relay (HR), and Counter (CNT) Areas in the CPU Unit may be cleared and the AR 1314 flag (which turns ON when the power interruption hold area is not held) may turn ON.

If the contents of the CPU Unit’s program area are lost, the program stored in flash memory will be read to the CPU Unit’s program area when the SRM1 is started up because the contents in the read-only area (DM 6144 through DM 6599) and PC Setup (DM 6600 through DM 6655) will be written to flash memory.

•However, if the power is turned off without changing the mode even if changes are made in the read-only DM area (DM 6144 through DM 6599), or PC Setup (DM 6600 through DM 6655) using a peripheral device, the contents of changes will not be written to flash memory. Although the data in these areas is backed up by the lithium battery, contents of changes will disappear if the service life of the lithium battery expires. In this case, programs in the flash memory will be automatically read into the user program memory.

The changes can be saved by switching the SRM1 to RUN or MONITOR mode or turning off and restarting the SRM1 soon after the changes are made.

xv

SECTION 1

Introduction

This section describes the SRM1’s special features and functions and shows the possible system configurations.

1-1	SRM1 Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2
	1-1-1	Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
	1-1-2	Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
1-2	System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		3
	1-2-1	Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
	1-2-2	SRM1 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4
	1-2-3	Peripheral Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
1-3	Procedures From System Design to Test Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		7
1-4	I/O and Data Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		8
	1-4-1	I/O Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
	1-4-2	Data Area Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	9

1

SRM1 Features and Functions

Section 1-1

1-1 SRM1 Features and Functions

1-1-1 Features

The SRM1 is a special CompoBus/S controller that provides remote I/O with greatly reduced wiring. The SRM1 has no built-in I/O terminals, but it can provide the same I/O control as earlier PCs through the Slaves (Slave Terminals) that are used for I/O.

A decentralized I/O system with up to 32 Slaves can be constructed. The system can have up to 256 I/O points and these I/O points are controlled with the CompoBus/S System’s high-speed response time of 1 ms max.

A very reliable and efficiently wired system can be constructed from special CompoBus/S components such as Analog Terminals (SRM1-C0j-V2 only), Remote Terminals, Sensor Terminals, Communications Cables, Connectors, and Terminators.

In SRM1-C0j-V2, the CompoBus/S system can be set to operate in long-dis- tance communications mode in addition to the previous high-speed communications mode. This allows a main line length of up to 500 m so that I/O devices can be controlled from some distance away. The SRM1-C0j-V2 can also process analog data as well as digital I/O.

The SRM1’s compact design allows for a smaller and thinner control panel.

The SRM1 is equipped with a program capacity of 4K words and a DM capacity of 2K words.

There are two SRM1(-V2) models available: the SRM1-C02-V2, which is equipped with an RS-232C port and communications functions, and the very cost-effective SRM1-C01-V2, which is not equipped with an RS-232C port.

1-1-2 Functions

Interval Timer Function	The SRM1 is equipped with an interval timer which can be set from 0.5 ms to
	319,968 ms in units of 0.1 ms. The timer can be set to trigger a single interrupt
	(one-shot mode) or repeat scheduled interrupts (scheduled interrupt mode).
	(The interrupts pause execution of the main program while an interrupt program
	is executed.)
Low-maintenance Design	Memory can be backed up without a battery by using flash memory.
Communications	The SRM1 can communicate with PCs or other devices via Host Link, 1:1 NT
	Link, 1:N NT Link, 1:1 PC Link, or RS-232C communications.
	Port	Applicable communications functions
	Peripheral Port	Peripheral device connections, Host Link, and RS-232C
		communications
	RS-232C Port	Host Link, 1:1 NT Link, 1:N NT Link, 1:1 PC Link, and no-protocol
		(RS-232C) communications

Programming Using the

PT

Standard Peripheral Devices

Programming is possible through the PT (Programmable Terminal) screen using an OMRON PT that contains Programming Console functions. (This applies only to the SRM1-C02-V1 and SRM1-C02-V2.)

The SRM1 uses the same Programming Consoles, CX-Programmer, SYSMACCPT, and SYSMAC Support Software (SSS) as the Mini H-type, CQM1, CPM1/CPM1A, and CPM2A/CPM2C PCs.

2

System Configuration

Section 1-2

Expansion Memory Unit The CPM1-EMU01-V1 Expansion Memory Unit is a program loader for smallsize or micro PCs. Using the CPM1-EMU01-V1, simple on-site transfer of user programs and data memory is possible with PCs.

Peripheral port

PERIPHERAL

RS-232C

1-2 System Configuration

1-2-1 Basic Configuration

Host device

Peripheral

device

CompoBus/S Communications Cable

Terminator

SRM1

Slave

Slave

Slave

32 Slaves max.

3

	System Configuration								Section 1-2
1-2-2 SRM1 Models
			Model		RS-232C port			PT programming functions
			SRM1-C01-V2	No			No
			SRM1-C02-V2	Yes			Yes
		The following table compares the functions in the SRM1(-V2) PCs with the func-
		tions in earlier SRM1 PCs.
	Function				SRM1 models
			SRM1-C0j-V2			SRM1-C0j-V1			SRM1-C0j
	Data backup	Backed up by a lithium battery with a minimum lifetime of 10							Capacitor backup
		years at 25_C.
	Programming	Programming can be performed through a Programming							Programming can be performed
	Console functions	Console connected to the peripheral port or an OMRON PT							through a Programming Console
		connected to the RS-232C port.							connected to the peripheral port.
	Data processing	Bit data (ON/OFF for 16 bits) and 16-bit				Bit data (ON/OFF status of bits)
		analog data from Analog Units
	Communications	High-speed communications (previous				High-speed communications mode (previous
		mode) or long-distance communications				mode) only.
		mode
	Connections with	Host Link, no-protocol, 1:1 NT Link, 1:N NT				Host Link, no-protocol, 1:1 NT Link, and 1:1 PC
	host devices	Link, and 1:1 PC Link communications				Link communications
	Instructions	The instructions in earlier SRM1 PCs plus				Basic instructions: 14
		the following instructions:				Special instructions: 77 (123 variations)
		NEG(––), PID(––), SCL(66), and ZCP(––)

Note The Analog Terminal can be used as a slave only with version-2 models. Incorrect data may be transferred if an Analog Terminal is used with the wrong model.

SRM1-C01-V2	SRM1-C02-V2
(No RS-232C port)	(With RS-232C port)

Peripheral port		Peripheral port

RS-232C port

4

System Configuration Section 1-2

1-2-3	Peripheral Connections
	The following peripherals can be connected to the SRM1(-V2) PCs. Refer to
	Appendix A Standard Models for a complete list of connectable peripherals.
Slaves	The following table shows the Slaves that can be connected. Refer to the Com-
	poBus/S Operation Manual (W266) for more details.
		Slave	SRT2 Series	SRT1 Series
			High-speed or long-distance	High-speed
			communications	communications only
		Remote Terminals	SRT2-ID04	SRT1-ID04
		(transistors)
			SRT2-ID04-1	SRT1-ID04-1
			SRT2-ID08	SRT1-ID08
			SRT2-ID08-1	SRT1-ID08-1
			SRT2-ID16	SRT1-ID16
			SRT2-ID16-1	SRT1-ID16-1
			SRT2-ID16T	None
			SRT2-ID16T-1
			SRT2-OD04	SRT1-OD04
			SRT2-OD04-1	SRT1-OD04-1
			SRT2-OD08	SRT1-OD08
			SRT2-OD08-1	SRT1-OD08-1
			SRT2-OD16	SRT1-OD16
			SRT2-OD16-1	SRT1-OD16-1
			SRT2-OD16T	None
			SRT2-OD16T-1
			SRT2-MD16T
			SRT2-MD16T-1
		Connector	SRT2-VID08S	None
		Terminals
			SRT2-VID08S-1
		(transistors)
			SRT2-VID16ML
			SRT2-VID16ML-1
			SRT2-VOD08S
			SRT2-VOD08S-1
			SRT2-VOD16ML
			SRT2-VOD16ML-1
		Remote Terminals	SRT2-ROC08	SRT1-ROC08
		(relays)
			SRT2-ROC16	SRT1-ROC16
		Remote Terminals	SRT2-ROF08	SRT1-ROF08
		(power MOSFET)
			SRT2-ROF16	SRT1-ROF16
		Remote Modules	None	SRT1-ROF08
				SRT1-ROF16
		Analog Input	SRT2-AD04	None
		Terminal
		Analog Output	SRT2-DA02
		Terminal
		Sensor Amplifier	SRT2-TID04S (See note 3.)	SRT1-TID04S
		Terminals
			SRT2-TKD04S (See note 3.)	SRT1-TKD04S
		Sensor Terminals	SRT2-ID08S (See note 3.)	SRT1-ID08S
			SRT2-OD08S (See note 3.)	SRT1-OD08S
			SRT2-MD08S (See note 3.)	SRT1-MD08S

5

System Configuration

Section 1-2

Compatible

Communications Modes

Slave	SRT2 Series	SRT1 Series
	High-speed or long-distance	High-speed
	communications	communications only
Bit Chain Terminal	None	SRT1-B1T
I/O Link Unit	CPM1A-SRT21	None

Note 1. SRT1-series Remote Terminals and Sensor Terminals can operate in highspeed communications mode only. Be sure to use SRT2-series Remote Terminals and Sensor Terminals when the SRM1-C0j-V2 is used in long-dis- tance communications mode.

2.The Analog I/O Terminals can be used with SRM1-C0j-V2 only.

3.To be marketed in the near future.

The long-distance communications mode can be used between SRM1-C0j-V2 Master Control Units and SRT2-series Slaves only, as shown in the following diagram. High-speed mode must be used if even one SRT1-series Slave is included in the CompoBus/S system.

Master Control Unit

SRM1-C0j-V2

Master Control Unit

SRM1-C0j,

SRM1-C0j-V1

		SRT2-series Slave					SRT2-series Slave
					High-speed or long-distance communications mode
					High-speed communications mode only
Peripheral Devices	The SRM1 can use a Programming Console or a personal computer running
	CX-Programmer, SYSMAC Support Software (SSS), or SYSMAC-CPT as a Pe-
	ripheral Device.

Programming Console

Programming Consoles are compact Peripheral Devices that support basic functions such as writing ladder programs and monitoring SRM1 operation. They are useful for onsite operations.

Refer to Section 4 Using a Programming Console for details on Programming

Console operations.

SYSMAC Support Software (SSS), SYSMAC-CPT, and CX-Programmer

In addition to the basic Programming Console operations, the CX-Programmer, SYSMAC-CPT, and SSS can be used to edit ladder programs offline, save programs to disk, and perform high-level monitoring; the CX-Programmer, SYS- MAC-CPT and SSS functions allow the user to design more efficient ladder programs. Refer to the manuals listed on the About this Manual page for details on using them.

SYSMAC Support Software (SSS)

When using the SSS, set the PC model to the “CQM1” and observe the following restrictions.

•Addresses will be checked according to the CQM1 address ranges, which are wider than the SRM1 address ranges. Be sure to use only the allowable addresses.

•The CQM1 has a larger memory than the SRM1 and the amount of memory available display will not be correct. Allow for the difference between capacities.

6

Procedures From System Design to Test Operation

Section 1-3

Host Computers, PTs, and

PCs

•Instructions will be displayed that are not supported by the SRM1. Do not use these instructions.

CX-Programmer and SYSMAC-CPT

The following instructions cannot be programmed when using the CX-Program- mer or SYSMAC-CPT. Errors will occur if an attempt is made to transfer them from the PC to the computer: SCL(66)/@SCL(66), ZCP, NEG/@NEG, and PID.

An SRM1(-V2) can be connected an IBM PC/AT or compatible computer or OMRON PT through an RS-232C Adapter (CPM1-CIF01) mounted to the SRM1’s peripheral port. (Use Host Link mode when connecting a PT through an RS-232C Adapter.)

The RS-232C port on an SRM1-C02-V2 can be used to connect directly to an IBM PC/AT or compatible computer, OMRON PT, or PC (C200HX/HG/HE, C200HS, CQM1, CPM1, CPM1A, CPM2A, or CPM2C). (Use Host Link mode or NT Link mode when connecting a PT directly.)

1-3 Procedures From System Design to Test Operation

The procedures from system design to test operation are explained in the sections of this manual as follows and in the CPM1/CPM1A/CPM2A/CPM2C/ SRM1(-V2) Programming Manual (W353):

1, 2, 3... 1. System Design

Refer to 3-1 System Design.

2.Installation

Refer to 3-3 Installing the SRM1.

3.Wiring

Refer to 3-4 Wiring and Connections.

4.Creating the Ladder Program

Refer to the relevant sections in the CPM1/CPM1A/CPM2A/CPM2C/ SRM1(-V2) Programming Manual (W353) and the applicable PC manual.

5.Inputting the Program

Refer to Section 4 Using the Programming Console, Section 5 Test Runs and Error Processing, CX-Programmer Users Manual (W346), SYSMAC Support Software (SSS) Operation Manuals (W247 and W248), and SYS- MAC-CPT Support Software Quick Start Guide (W332) and User Manual

(W333).

6.Test Operation

Refer to 5-1-2 SRM1 Test Run Procedure.

7

I/O and Data Area Allocations

Section 1-4

1-4 I/O and Data Area Allocations

1-4-1 I/O Allocations

The input bits of SRM1 words 000 to 007, and the output bits of words 010 to 017, are allocated to the CompoBus/S Slave. These allocations are shown in the following table.

I/O	Word address		Bits
		15 to 08		07 to 00
Inputs	000	IN1		IN0
	001	IN3		IN2
	002	IN5		IN4
	003	IN7		IN6
	004	IN9		IN8
	005	IN11		IN10
	006	IN13		IN12
	007	IN15		IN14
Outputs	010	OUT1		OUT0
	011	OUT3		OUT2
	012	OUT5		OUT4
	013	OUT7		OUT6
	014	OUT9		OUT8
	015	OUT11		OUT10
	016	OUT13		OUT12
	017	OUT15		OUT14

IN0 to IN15 are Input Slave node numbers, and OUT0 to OUT15 are Output

Slave node numbers.

If the maximum number of CompoBus/S devices is set to 16, then IN8 to IN15 and OUT8 to OUT15 can be used as work bits.

Words IR 008, IR 009, IR 018, and IR 019 can be used as work words.

The bits for two node number are allocated to 16-point Slaves so that all bits are in the same word. If an even node address is set, the node address that is set and the next node address following it will be used. For example, if node address 6 is set for a 16-point Output Slave, bits for node addresses OUT6 and OUT7 will be used. If an odd node address is set, the node address that is set and the previous node address will be used. For example, if node address 3 is set for a 16-point Output Slave, bits for node addresses OUT2 and OUT3 will be used.

All of the bits for one node address are allocated to a 4-point Slave. If an even numbered node address is set, bits 00 to 03 are used and bits 04 to 07 are not used. If an odd numbered node address is set, bits 8 to 11 are used and bits 12 to 15 are not used.

8

I/O and Data Area Allocations

Section 1-4

Analog Terminals are allocated from 16 to 64 bits per Terminals as shown in the following table. If an allocation is not completely within the input or output area, communications will not be possible and the COMM indicator will not be lit.

I/O bits allocated	Node	Node addresses used	Address
	address		setting range
	setting
64 bits	Even	Set address to set address + 7	0 to 9
(SRT2-AD04, 4 analog inputs)
	Odd	Set address – 1 to set address + 6
48 bits	Even	Set address to set address + 5	0 to 11
(SRT2-AD04, 3 analog inputs)
	Odd	Set address – 1 to set address + 4
32 bits	Even	Set address to set address + 3	0 to 13
(SRT2-AD04, 2 analog inputs)
	Odd	Set address – 1 to set address + 2
(SRT2-DA02, 2 analog outputs)
16 bits	Even	Set address to set address + 1	0 to 15
(SRT2-AD04, 1 analog input)
	Odd	Set address – 1 to set address
(SRT2-DA02, 1 analog output)

Examples

If node address 3 is set for the SRT2-DA02 and 2 analog outputs are used, 32 bits are allocated from OUT2 to OUT5.

If node address 10 is set for the SRT2-AD04 and 4 analog inputs are used, the allocated area would exceed the output area available for allocation and communications would not be possible.

1-4-2 Data Area Allocation

The relationships between the data areas and words that can be used by the

SRM1 are shown in the following table. For details, refer to the CPM1/CPM1A/

CPM2A/CPM2C/SRM1(-V2) Programming Manual (W353).

Name	Number of words or bits	Word addresses
Input bits	8 words	IR 000 to IR 007
Output bits	8 words	IR 010 to IR 017
Work bits	44 words	IR 008 and IR 009,
	(See note 1.)	IR 018 and IR 019,
		IR 200 to IR 239
SR area	16 words	IR 240 to IR 255
HR area	20 words	HR 00 to HR 19
AR area	16 words	AR 10 to AR 15
		(See note 2.)
LR area	16 words	LR 00 to LR 15
DM area (Read/Write)	2,022 words	DM 0000 to DM 2021
DM area (Read Only)	456 words	DM 6144 to DM 6599
DM area (PC Setup)	56 words	DM 6600 to DM 6655
TR area	8 bits	TR 0 to TR 7
TIM/CNT area	128 bits	TIM/CNT 000 to 127

Note 1. When the CompoBus/S system is used in 128-bit mode, IR 004 to IR 007 and IR 014 to IR 017 can be used as work words.

2. AR 04 to AR 07 are used for Slave status.

9

SECTION 2

Specifications and Components

This section provides the technical specifications of the SRM1(-V2) and describes its main components.

2-1	Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		12
	2-1-1	General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
	2-1-2	Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	13
	2-1-3	CompoBus/S Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
2-2	Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		15

11

Specifications Section 2-1

2-1	Specifications
2-1-1	General Specifications
	Item	SRM1-C01/C02-V2
Supply voltage		24 VDC
Allowable supply voltage		20.4 to 26.4 VDC
Power consumption		3.5 W max.
Inrush current		5.0 A max. (pulse width: 15 ms max.)
Noise immunity		Conforms to IEC61000-4-4; 2 kV (power lines)
Vibration resistance		10 to 57 Hz, 0.075-mm amplitude, 57 to 150 Hz, acceleration: 9.8 m/s2 in X, Y, and
		Z directions for 80 minutes each
		(Time coefficient; 8 minutes × coefficient factor 10 = total time 80 minutes)
Shock resistance		147 m/s2 three times each in X, Y, and Z directions
Ambient temperature		Operating: 0° C to 55° C
		Storage: –20° C to 75° C
Absolute humidity		10% to 90% (with no condensation)
Atmosphere		Must be free from corrosive gas.
Terminal screw size		M3
Power interrupt time		DC type: 2 ms min.
Weight		150 g max.

12

Specifications Section 2-1

2-1-2 Characteristics

Item		SRM1-C01/C02-V2
Control method	Stored program method
I/O control method	Cyclic scan method
Programming language	Ladder diagram
Instruction length	1 step per instruction, 1 to 5 words per instruction
Types of instructions	Basic instructions:	14
	Special instructions:	81 instructions, 125 variations
Execution time	Basic instructions:	0.97 s (LD instruction)
	Special instructions:	9.1 s (MOV instruction)
Program capacity	4,096 words
Maximum number of I/O points	256 points
Input bits	00000 to 00715 (Words not used as input words can be used as work words.)
Output bits	01000 to 01715 (Bits not used as output bits can be used as work bits.)
Work bits	704 bits: 00800 to 00915 (Words IR 008 and IR 009)
	01800 to 01915 (Words IR 018 and IR 019)
	20000 to 23915 (Words IR 200 to IR 239)
Special bits (SR area)	248 bits: 24000 to 25507 (Words IR 240 to IR 255)
Temporary bits (TR area)	8 bits (TR0 to TR7)
Holding bits (HR area)	320 bits: HR 0000 to HR 1915 (Words HR 00 to HR 19)
Auxiliary bits (AR area)	256 bits: AR 0000 to AR 1515 (Words AR 00 to AR 15)
Link bits (LR area)	256 bits: LR 0000 to LR 1515 (Words LR 00 to LR 15)
Timers/Counters	128 timers/counters (TIM/CNT 000 to TIM/CNT 127)
	100-ms timers: TIM 000 to TIM 127
	10-ms timers (high-speed counter): TIM 000 to TIM 003
	Decrementing counters and reversible counters
	(Note: TIMH(15) will not time reliably if the cycle time is over 10 ms and timer
	numbers TIM 004 to TIM 127 are used.)
Data memory	Read/Write: 2,022 words (DM 0000 to DM 2021)
	Read-only: 512 words (DM 6144 to DM 6655)
Interval timer interrupts	One-shot mode/Scheduled interrupt mode, one bit (0.5 to 319,968 ms)
Memory protection	HR, AR, and DM area contents; and counter values maintained during power
	interruptions.
Memory backup	Flash memory:
	The program and read-only DM area are backed up without a battery.
	Lithium battery backup:
	The read/write DM area, HR area, AR area, and counter values are backed up by
	the lithium battery whose service life extends over ten years under an ambient
	temperature of 25_C.
	(Note: The lifetime of the lithium battery capacity depends on the ambient
	temperature. Refer to the descriptions on the next page.)
Self-diagnostic functions	CPU Unit failure (watchdog timer), memory check, communications errors, setting
	errors
Program checks	No END instruction, programming errors (continuously checked during operation)
Peripheral port	One point; tool connection, Host Link, no protocol
RS-232C Port	One point (SRM1-C02-V2 only); Host Link, 1:1 NT Link, 1:N NT Link, 1:1 PC Link,
	no protocol

13

Specifications

Section 2-1

Backup Time vs. Temperature A lithium battery in the CPU Unit is used to back up the contents in the user program area, the READ/WRITE area in the Data Memory (DM), Hold Relay (HR), the Auxiliary Memory Relay (AR), and in the data area of the Counter (CNT). The deterioration of the lithium battery capacity depends on the ambient temperature. The standard service life is 12 years under an ambient temperature of 40_C when operating 8 hours a day.

If the power supply is interrupted after the lithium battery capacity has deteriorated, the contents in the user program area, the READ/WRITE area in the Data Memory (DM), Hold Relay (HR), Auxiliary Memory Relay (AR), and in the data area of the Counter (CNT) may be lost. Even if the contents of the CPU Unit’s program area are lost, however, the user program and DM read-only contents (including the one in the PC Setup area) stored in flash memory will be read to the CPU Unit’s user program area when the SRM1 is next started up.

2-1-3 CompoBus/S Communications Specifications

	Item		Specifications
Communications method			CompoBus special protocol
Transmission method			Multi-drop, T-branch
Baud rate		High-speed	750 kbps
		communications
		mode
		Long-distance	93.75 kbps
		communications
		mode
Modulation method			Baseband method
Code method			Manchester coding method
Maximum number of connectible			32: 16 IN and 16 OUT
terminals
			16: 8 IN and 8 OUT
Number of points per frame			256 (128 IN and 128 OUT), when maximum number of connectible terminals
			is 32.
			128 (64 IN and 64 OUT), when maximum number of connectible terminals is
			16.
Communications		High-speed	0.8 ms, when maximum number of terminals is set to 32.
cycle time		communications
			0.5 ms, when maximum number of terminals is set to 16.
		mode
		Long-distance	6.0 ms, when maximum number of terminals is set to 32.
		communications
			4.0 ms, when maximum number of terminals is set to 16.
		mode
Communications function			Cyclic transfer only (no message communications)
Error control checks			Manchester code check, frame length check, parity check, two-transfer
			comparison
Communications		High-speed	Main line length: 100 m max.
distance		communications	Branch line length: 3 m max.
		mode	Total branch line length: 50 m max.
		Long-distance	Main line length: 500 m max.
		communications	Branch line length: 6 m max.
		mode	Total branch line length: 120 m max.
Cable		Vinyl-clad VCTF	Two 0.75 mm2 conductors (2 signal wires)
		JIS C 3306
		Flat cable	Four 0.75 mm2 conductors (2 signal wires and 2 power supply wires)

14

Unit Components

Section 2-2

2-2 Unit Components

SRM1-C01-V2

4. CPU Unit status indicators	2. Peripheral port
	Connector cover

5.CompoBus/S communications status indicators

6.Peripheral/RS-232C port communications status indicators

1. Terminal block

SRM1-C02-V2

4. CPU Unit status indicators	2. Peripheral port
	Connector cover
5. CompoBus/S communications status indicators
	3. RS-232C Port
6. Peripheral/RS-232C Port communications status indicators

		1. Terminal block
1) Terminal Block		These terminals connect the power supply (24 V) and the CompoBus/S trans-
		mission path. For details regarding power supply wiring, refer to 3-4-2 Power
		Supply Wiring.
2)	Peripheral Port	The Peripheral Port connects the programming tool or an RS-232C or RS-422
		adapter. Be sure to use the correct cable.
3)	RS-232C Port	The RS-232C Port connects to an RS-232C interface such as a personal com-
		puter or an OMRON PT. For details, refer to 3-4-4 RS-232C Port Wiring.

15

Unit Components			Section 2-2
4, 5, 6) Indicators	There are three types of LED indicators: CPU Unit status indicators, CompoBus/
	S communications status indicators, and peripheral/RS-232C Port communica-
	tions status indicators. These indicate the status of various Units, as shown in
	the following table.
	Indicator	Display	Status
	PWR (Green)	ON	Power is being supplied.
		OFF	Power is not being supplied.
	RUN (Green)	ON	In RUN mode or MONITOR mode
		OFF	In PROGRAM mode or fatal error has occurred.
	ERR (Red)	ON	Fatal error has occurred.
		Flashing	Non-fatal error has occurred.
		OFF	Normal operation
	SD (Yellow)	ON	CompoBus/S data is being sent.
		OFF	Data is not being sent.
	RD (Yellow)	ON	CompoBus/S data is being received.
		OFF	Data is not being received.
	ERC (Red)	ON	A CompoBus/S communications error has
			occurred.
		OFF	Normal operation
	COMM (Yellow)	Flashing	Data is being sent or received at the Peripheral
			Port or RS-232C Port.
		OFF	Data is not being sent or received.

16

SECTION 3

Installation and Wiring

This section explains how to install and wire the SRM1(-V2). Be sure to follow the instructions contained here concerning the control panel, power supply, CompoBus/S transmissions, and RS-232C Port wiring. For details regarding the wiring of CompoBus/S Terminal transmission paths and I/O, refer to the CompoBus/S Operation Manual (W266).

3-1	System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		18
	3-1-1	Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
	3-1-2 Interlock and Limit Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		18
	3-1-3	Power Supply Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
3-2 Selecting an Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			19
	3-2-1	Installation Site Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
	3-2-2	Panel/Cabinet Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	19
3-3	Installing the SRM1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		20
	3-3-1	Surface Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	20
	3-3-2	DIN Track Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	20
3-4	Wiring and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		21
	3-4-1 General Precautions for Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		21
	3-4-2	Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	23
	3-4-3 CompoBus/S Transmission Line Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		23
	3-4-4	RS-232C Port Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	24
	3-4-5	Host Link Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	26
3-5	One-to-one NT Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		30
3-6	One-to-N NT Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		30
3-7 One-to-one PC Link Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			31
	3-7-1	Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	31
	3-7-2	Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	32
	3-7-3	Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	32
	3-7-4	PC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	32

17

System Design

Section 3-1

3-1 System Design

Take the points covered in this section into consideration when designing the system.

3-1-1 Power Supply Wiring

Separate the power supply wiring from the control system, SRM1 system, and

DC I/O system wiring.

3-1-2 Interlock and Limit Circuits

Construct an external interlock circuit if SRM1 outputs are used to perform reciprocal operations such as controlling the forward and reverse operation of a motor or if incorrect SRM1 operation could cause accidents or mechanical damage. Also, construct an external limit circuit to prevent run-away movement in operations such as position control.

The following diagram shows an example of an interlock circuit.

CompoBus/S transmission path

SRM1

Interlock Circuit

01005 MC2

MC1 Motor forward

Slave

01006 MC1

MC2 Motor reverse

In the interlock circuit above, MC1 and MC2 cannot be ON at the same time even if SRM1 outputs 01005 and 01006 are both ON at the same time (an incorrect operation).

3-1-3 Power Supply Sequence

Time Up to the Start of Operation

The time from when the power supply is turned on to when the operation starts varies depending on the operation conditions such as power supply voltage, configuration, ambient temperature, etc. The minimum time is approximately 500 ms and the maximum is approximately 1.1 s.

Momentary Power Failure Detection

A momentary power failure (i.e., a voltage drop to less than 85% of the rated voltage) lasting less than 2 ms is not detected and the SRM1 continues to operate.

A momentary power failure lasting longer than 2 ms may cause the SRM1 to stop operation. If this occurs, operation will be automatically resumed when the rated voltage again rises above 85%.

Note The SRM1 may repeat stop/start operations if the supply voltage of less than 85% of the rated value gradually goes up or down. If this affects the equipment, etc., provide a protection circuit which shuts off the output if the supply voltage is not above the rated value.

The output status of Slaves when the SRM1 is stopped can be set on the Slave side either to have the ON/OFF status directly prior to the stop retained or to have all outputs turned OFF.

18

Selecting an Installation Site

Section 3-2

3-2 Selecting an Installation Site

The SRM1 is resistant to harsh conditions and highly reliable, but installing it in a favorable site will maximize its reliability and operating lifetime.

3-2-1 Installation Site Conditions

Avoid installing the SRM1 in a site with any of the following conditions.

• Where the SRM1 is exposed to direct sunlight.

• Where the ambient temperature is below 0° C or over 55° C.

•Where the SRM1 may be affected by condensation due to radical temperature changes.

•Where the ambient humidity is below 10% or over 90%.

•Where there is any corrosive or inflammable gas.

•Where there is excessive dust, saline air, or metal powder.

•Where the SRM1 is affected by vibration or shock.

•Where any water, oil, or chemical may splash on the SRM1.

	Be sure that the conditions at the installation site conform to the SRM1’s general
	specifications. Refer to 2-1-1 General Specifications for details.
3-2-2 Panel/Cabinet Installation
	Consider PC operation, maintenance, and surrounding conditions when instal-
	ling the SRM1 in a panel or cabinet.
Overheating	The operating temperature range for the SRM1 is 0_C to 55_C. Be sure that
	there is adequate ventilation for cooling.
	•	Allow enough space for air circulation.
	•	Do not install the SRM1 above equipment that generates a large amount of
		heat, such as heaters, transformers, or large resistors.
	•	Install a cooling fan or system when the ambient temperature exceeds 55_C.
		Control panel
		Fan
		SRM1
		Air vent
Electrical Noise	Power lines and high-voltage equipment can cause electrical noise in the PC.
	•	Do not install the SRM1 in a panel or cabinet with high-voltage equipment.
	•	Allow at least 200 mm between the SRM1 and nearby power lines.

200 mm min.			Power lines
	SRM1
	200 mm min.

19

Installing the SRM1		Section 3-3
Accessibility	Ensure that the SRM1 can be accessed for normal operation and maintenance.
	•	Provide a clear path to the SRM1 for operation and maintenance. High-voltage
		equipment or power lines could be dangerous if they are in the way during rou-
		tine operations.
	•	The SRM1 will be easiest to access if the panel or cabinet is installed about 3 to
		5 feet off of the floor.

3-3 Installing the SRM1

The SRM1 can be installed on a horizontal surface or on a DIN track.

3-3-1 Surface Installation

Use the following pattern when installing an SRM1 on a horizontal surface.

Two M4 or two 4.2 dia.

100

(Unit: mm, with tolerance of ± 0.2 mm)

30

3-3-2 DIN Track Installation

The SRM1 can be installed on a 35-mm DIN track.

DIN Track

PFP-100N (1 m)

PFP-50N (50 cm)

End Plates

(PFP-M)

20