Pepper Computer RS232, RS485 User Manual

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SMART I/O User’s Manual

8 Channel AC Input Unit

Micro PLCs and Real-Time Computers

Manual ID 09901, Rev. Index 0500 of 08 Jan. 98

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Preface

SMART I/O User’s Manual

Preface

Revision History ............................ 0-4

For Your Safety ............................. 0-5

Special Handling and Unpacking In-

structions ................................................. 0-6

08 Jan. 98

HV Safety Instructions............................. 0-6

Two Years Warranty...................... 0-7

Table of Contents.......................... 0-9

Page 0 - 3Manual ID 09901, Rev. Index 0500

Preface

Manual/Product Titl e:

SMART I/O User’s Manual

Manual ID Numb er:

09901

Rev.

Index

Brief Description of Changes

PCB Index

Date of

Issue

0100

Initial Issue

0202Dec. 94

0200

General Update, SM-DAD1 & Software

Library Added

0202Feb. 95

0300

New MS Modules A dded, D 5 For mat

0202Mar. 96

0400

New MS Modules A dded, C orrect ions

Including Update of SM-DAD1 ’C’ Pro-

gramming Section

0202Oct 96

0500

Standard Preface, ACI1 Module Added

0202Dec. 97

Revision History

SMART I/O User’s Manual

This document contains propri etary infor mation of PEP Modular Computers. It may not be copied or transmitted by any means, passed to others, or stored in any retrieval system or media, without the prior consen t of PEP Modul ar Com- puters or its authorized agents.

The information in this document is, to the best of our knowledge , enti rely correct. However, PEP Modular Computers cannot a ccept liability for any inaccu- racies, or the consequences thereof, nor for any liability arising from the use or application of any circui t, pr oduct, or example shown in this document .

PEP Modular Computers reserve the right to change, modify, or improve this document or the product descr ibed herein, as seen fit by PEP Modular Comput-

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08 Jan. 98Manual ID 09901, Rev. Index 0500

SMART I/O User’s Manual

Preface

For your safety

This PEP product is carefully designed for a long, fault-free life. However, its life expectancy can be drastically reduced by improper treatment during unpacking and installation. Therefore, in the interest of your own safety and of correct operation of your new PEP product, please take care of the following guidelines:

Before installing your new PEP product into a system, please, always



switch off your power mains. Thi s appl ie s al so t o installing piggybacks. In order to maintain PEP’s p roduct warranty, pl ease, do not a lter or mod-



ify this product in any way. Changes or modifications to the device, which are not explicitly approved by PEP Modular Computers and described in this manual or received from PEP Technical Support as a special handling instruct ion, wi ll void your warranty.

This device should only be installed in or connected to systems that ful-



fill all necessary technic al and specific envi ronmental requi rements. This applies also to the operational temperature range of the specific board version, which must not be exceeded. If batteries are present, their temperature restrictions mus t be take n int o account.

In performing all necessary installation and application operations, please,



follow only the instructions supplied by the present manual. Keep all the original packaging material for future storage or warranty



shipments. If it is necessary to store or ship the board, warranty shipments. If it is necessary to stor e or ship the board, ple ase, re-pack it in the original way.

08 Jan. 98

Page 0 - 5Manual ID 09901, Rev. Index 0500

Preface

SMART I/O User’s Manual

Special Handling and Unpacking Instructions

Electronic boards are sensitive to static electricity. Therefore, care must be taken during all handling operations and inspections with this product, in order to ensure product integri ty a t al l t imes.

Do not handle this product out of its protective enclosure while it is not



being worked with, or unless it i s ot her wise p rot ect ed. Whenever possible, unpack or pack this product only at EOS/ESD safe



work stations. Where safe work stations are not guaranteed, it is important for the user



to be electrically discharged before touching the product with his/her hands or tools. This is most easily done by touching a metal part of your system housing.

Particularly, observe standard ant i-sta tic prec autions when cha nging pig-



gybacks, ROM devices, jumper settings etc. If the product contains batteries for RTC or memory bac k-up, ensure that the board i s not place d on conductive surfaces, including anti-static plastics or sponges. They can cause short circuits and da ma ge t he bat teries or tracks on the board.

HV Safety Instructions

This chapter of the safety instructions applies to

(> 60 V)

Your new PEP product was developed and tested carefully to provide all features necessary to ensure the renown electrical safety requirements. However, serious electrical shock hazards exist during all installation, repair and maintenance operations with this product. Therefore, always unplug the power cable to avoid exposure to hazardous voltage.

All operations on this d evice have to be c arri ed ou t by su ffic ien tly sk ille d personnel only.

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only.

HIGH-VOLTAGE APPLIANCES

08 Jan. 98Manual ID 09901, Rev. Index 0500

SMART I/O User’s Manual

Two Years Warranty

Preface

PEP Modular Computers grants the original purchaser of PEP products a

YEARS LIMITED HARDWARE WARRANTY

as described in the following. How-

TWO

ever, no other warranties that may be granted or implied by anyone on behalf of

PEP are valid unless the consumer has the expressed written consent of PEP Modular Computers.

PEP Modular Computers warrants their own products, excluding software, to

be exempt of manufacturing and materia l defect s for a perio d of 24 consecut ive months from the date of purchase. Thi s warr ant y is not transferable nor extendible to cover any other users or long-term storage of the product. It does not cover products which have been modified, altered or repaired by any other party than PEP Modular Computers or their authorized agents. Furthermore, any product which has been, or is suspected of being damaged as a result of negligence, improper use, incorrect handling, servicing or maintenance, or which has been damaged as a result of excessive current/voltage or temperature, or which has had its serial number(s), any other markings or parts thereof altered, defaced or re mov ed will also be excluded fro m t his warranty.

If the customer’s eligibility for warranty has not been voided, in case of any claim, he may return the product at the earliest possible convenience to the original place of purchase, together with a copy of the original document of purchase, a full description of the application the product is used on and a description of the defect . Pack the product in such a way as to ens ure saf e tra nsportation (see our saf et y ins tructions).

PEP provides for repair or replacement of any part, assembly or sub-assembly at their own discretio n, or to re fund the or iginal cost of purch ase, if ap propria te. In the event of repair, refunding or replacement of any part, the ownership of the removed or replaced parts reverts to PEP Modular Computers, and the remaining part of the original guarantee, or any new guarantee to cover the repaired or replaced items, will be transferred to cover the new or repaired items. Any extensions to the o riginal guar antee ar e consid ered gest ure s of

08 Jan. 98

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Preface

SMART I/O User’s Manual

goodwill, and will be defined in the “Repair Report” issued by PEP with the repaired or replaced it em.

PEP Modular Computers will not accept liability for any further claims resulting directly or indirectly from any warranty claim, other than the above specified repair, replacement or re funding. Particularly, all clai ms for damage to any system or process in whi ch t he product was employed, or an y l oss incurred as a result of the product not functioning at any given time, are exclude d. The extent of PEP Modular Computers liability to the customer shall not exceed the origi- nal purchase price of the i tem f or whi ch t he cl aim exist.

PEP Modular Computers issues no warranty or representation, either explicit or implicit, with respect to its products, reliability, fitness, quality, marketability or ability to fulfil any pa rticular applicatio n or purpose. As a res ult, the products are sold “as is,” and the responsibility to ensure their suitability for any given task remains of the purchaser. In no event will PEP be liable fo r direct, indirect or consequential damages resulting from the use of our hardware or software products, or documentation, even if PEP were advised of the possibility of such claims prior to the purchase of the product or during any period since the date of its purc hase .

Please remember that no PEP Modul ar Computers employe e, dealer or agent is authorized to make any modification or addition to the above specified terms, either verbally or in any other form written or electronically transmitted, without the company’s consent.

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SMART I/O User’s Manual

Table of Contents

Preface

Chapter

1. General Information............................... 1-3

1.1 Product Overview ............................................ 1-8

1.2 Ordering Information ....................................... 1-9

1.3 Product Information ................................... .... 1-10

1.4 Installation ..................................................... 1-13

1.5 ISaGRAF Installation ..................................... 1-18

Chapter

2. SMART-BASE ....................................... 2-3

2.1 Specifications .................................................. 2-4

2.2 Board Overview ............................................... 2-5

2.3 Functional Description ..................................... 2-6

2.4 Configuration ................................................... 2-8

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Preface

2.5 Pinouts ............................................................. 2-9

2.6 ‘C’ Programming .. ............................ .... ..... ..... 2-17

2.7 ISaGRAF Programming ............................ ..... 2-32

2.8 Flash Utility .................................................... 2-37

SMART I/O User’s Manual

Chapter

3. SMART-EXT ......................................... 3-3

3.1 Specifications ................................................... 3-3

3.2 Board Overview ............................... .... ..... ....... 3-4

3.3 Functional Description ..................................... 3-5

3.4 Pinouts ............................................................. 3-6

Chapter

4. Digital Modules .....................................4-5

4.1 SM-DIN1........................................................... 4-5

4.2 SM-DOUT1..................................................... 4-19

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SMART I/O User’s Manual

4.3 SM-REL1........................................... ..... .... .... 4-33

4.4 SM-ACI1............................................ ..... .... .... 4-51

Preface

Chapter

5. Analog Modules..................... ... .. ... .. ...... 5 -7

5.1 SM-DAD1......................................................... 5-7

5.2 SM-PT100 ..................................................... 5-29

5.3 SM-THERM ................................................... 5-59

5.4 SM-ADC1................... ............................ .... .... 5-89

5.5 SM-DAC1..................................................... 5-107

Chapter

6. Communications Modules .................... 6-5

6.1 SM-RS232........................................................ 6-5

6.2 SM-SSI......................................... ..... ..... ........ 6-17

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Introduction

General Information.....................................1-3

SMART I/O User’s Manual

Weights & Measures .................................................................... 1-4

1.1 Product Overview .................................................................. 1-8

1.2 Ordering Information ............................................................. 1-9

1.3 Product Information ............................................................. 1-10

1.4 Installation ........................................................................... 1-13

1.4.1 Overview ........................................................................................... 1-13

1.4.2 SMART I/O Module Installation....................................................... 1-15

1.4.3 RJ45 Telephone Connector Installation ............................................ 1-16

1.4.4 Screw Terminal Block Installation .................................................... 1-16

1.4.5 Battery Installation ............................................................................ 1-17

1.5 ISaGRAF-Installation .......................................................... 1-18

1.5.1 Before Installing ................................................................................1-18

1.5.2 Installation of the ISaGRAF for Windows Workbench..................... 1-19

1.5.3 Installation of PEP Library Functions ............................................... 1-21

1.5.4 Demo Application ............................................................................. 1-26

SMART I/O User’s Manual

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Introduction

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Introduction

General Information

SMART I/O User’s Manual

All PEP products are intended for use in industrial climates where extreme environments exist. Dirt, temperature extremes, varying humidity levels, vibration, noise, shock and electromagnetic signals must all be considered. Only when certain precautions have been followed can PEP guarantee the performance of the product stated in the data sheet.

In most cases, controllers are situated in close vicinity to electromechanical devices like relays, transformers, motor controllers and high-frequency switches etc. In such situations, a variety of disturbance sources are present and effect the performance characteristics of the controller. However, by observing the following precautions, many of the bad effects can be minimized.

• Earth protect the controller fixing

• Use screened/shielded cable connections

• Place cables according to relevant standards

• Observe the use of the correct cable diameter and type

• For unused module sockets, install a blank front-panel

• Leave enough room between a ‘hot body’ and the controller for air to circulate freely

• Place the controller as far away as possible from ‘noisy’ components

• Separate digital and analog cabling

• Only replace/insert modules in the carrier unit with the power OFF

• Handle the controller components with care; Modules containing highly integrated CMOS components are very sensitive to static discharges

• Try to separate analog modules from their digital cousins.

SMART I/O User’s Manual

Weights & Measures

The following line drawings serve to illustrate the method of fixing the controller to a DIN rail or brackets for wall/cabinet mounting. Note that all measurements are in millimetres.

Introduction

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DIN Rail Mounting

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Introduction

SMART I/O User’s Manual

Optional Bracket Mounting

SMART I/O User’s Manual

Introduction

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Introduction

SMART I/O User’s Manual

Unit Weight Unit Weight

SMART-BASE 650g SM-THERM 40g SMART-EXT 250g SM-ADC1 70g SM-DIN1 40g SM-DAC1 70g SM-DOUT1 70g SM-SSI 70g SM-REL1 61g SM-CNT1 N/A SM-DAD1 70g SM-RS232 40g SM-PT100 40g

SMART I/O User’s Manual

1.1 Product Overview

SMART I/O is based on a cost effective open system for industrial automation and industrial computing. By programming the SMART I/O using the standard ISaGRAF workbench for IEC 1131-3 PLC programming languages and the Ultra-C compiler (DOS, OS-9) for ANSI-C real-time programming, the SMART I/O can be used as a micro PLC and as a real-time computer system.

Equipped with the standard real-time fieldbus PROFIBUS, it allows the use of the SMART I/O in a fully transparent real-time network architecture. This architecture provides open communication between PEP systems and third party I/O systems, as well as MMI. PROFIBUS not only allows I/O communication, but also file transfer, remote login and remote debugging facilities.

SMART I/O is designed around the MC68302 CPU from Motorola which has two on-chip microprocessors. One is the industry standard 68HC000 running at 20MHz, and the second is a communication orientated RISC processor. Fieldbus protocols use the power of this RISC CPU, freeing the 68HC000 for other tasks. Communication between the 68HC000 and the communication processor is made using on-chip dual-ported RAM. Nonvolatile memory (battery backed SRAM and FLASH memory) allows a secure and long-term backup of the application program and data.

Introduction

Well suited for machinery manufacturers and all OEMs, the SMART I/O is an ideal companion for VME9000 and IUC9000 systems. Connected together with these high-end VME or IUC computers and PLCs, SMART I/O allows the decentralization of I/O functions through the world wide accepted PROFIBUS fieldbus.

SMART I/O systems provide more power than dumped remote I/O systems since they support local intelligence: an IEC1131-3 programming environment as well as ANSI-C programming under real-time OS. All this power is provided with excellent price/performance characteristics.

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Introduction

1.2 Ordering Information

SMART I/O User’s Manual

Product Description Order Nr.

SMART-BASE

SMART-BASE SMART-EXT

SM-DIN1 SMART-Module with 8 optoisolated 24V DC digital inputs 4229 SM-DOUT1 SMART-Module with 8 optoisolated 24V DC/500mA digital outputs 4231 SM-DAD1 SMART-Module with 4 channel A/D (±10V), 2 channel D/A (±10V, 0..10V) 9868 SM-PT100 SMART-Module with 4 optoisolated 2, 3 or 4-wire PT100 inputs 12405 SM-THERM SMART-Module with 4 optoisolated thermocouple inputs 12426 SM-REL1 SMART-Module with 6 optoisolated normally open relay outputs 12238 SM-RS232 SMART-Module with RS232 (Rx & Tx) interface 12461

SM-SSI SM-ADC1 SMART-Module with 6 12-bit, ±10V optoisolated analog inputs 13380

SM-ADC1 SMART-Module with 6 12-bit, 0..20mA optoisolated analog inputs 13868 SM-DAC1 SMART-Module with 2 12-bit, ±10V optoisolated analog outputs 13379

SM-DAC1 SM-DAC1 SMART-Module with 6 12-bit, ±10V optoisolated analog outputs 14019 SM-DAC1

Micro PLC & real-time computer, 1 MByte EPROM, 512 kByte DRAM, 64kByte SRAM, OS-9 v3.0, ISaGRAF v3.0x, PROFIBUS v3.12, Layer 2 & 7, RTC, full modem RS232 (8-pin RJ45 connector), 190 mAh battery, housing and terminal block for the 24V DC power supply As product 13843 but with additional 1 MByte Flash memory (TSOP) on solder side Expansion module for the SMART-BASE supporting 2 SMART-Modules Delivered without terminal blocks, SMART-Modules or blank panels

SMART-Module with 1 SSI channel providing a 24V DC digital input and a 24V DC, 500mA digital output

SMART-Module with 2 12-bit, 0..20mA optoisolated analog outputs with current sensing for broken sensor detection

SMART-Module with 6 12-bit, 0..20mA optoisolated analog outputs with current sensing for broken sensor detection

13843

13844 4228

12825

14018

14020

All SM-Modules are delivered without screw terminals.

SMART I/O User’s Manual

Introduction

Product Description Order Nr.

ISaGRAFROM-START

OS9TRG-RGSMART

OS9DEVFTWIN-SMART

OS9DEVFTUNIX-SMART

OS9-PFBSMART OS9-PFBSMART(FT)

Cable Cable

Screw Term. For the SMART-BASE timer I/O. Pack of 5, 2x3 array 10892 SCR-2*7. For the SMART-Modules. Pack of 5, 2x7 array 10893 Dummy FP For unused SMART-Module slots. Available in packs of 20 10894

Battery Battery

ROM kit v3.x for SMART I/O enables the generation of custom firmware EPROMs. Platform can be a PC or OS-9 development system

Target CPU kit for SMART I/O (OS-9 v3.x/Ix.x disks) 11299 OS-9/68000 FasTrak for Windows development pack for SMART I/O.

Contains extended OS-9 v3.x/Ix.x, PEP utilities and I/O drivers with necessary makefiles for complete application and EPROM generation. OS-9/68000 FasTrak for UNIX development pack for SMART I/O. Contains extended OS-9 v3.x/Ix.x, PEP utilities and I/O drivers with necessary makefiles for complete application and EPROM generation. OS-9 PROFIBUS starter kit II for 1 node. Includes license, disk and manual OS-9 PROFIBUS starter kit II for 1 node operating under FasTrak for Windows. Includes license, disk and manual 3 meters with 9-pin D-Sub (female) & RJ45 connectors for PC operation 3 meters with 25-pin D-Sub (male) & RJ45 connectors for modem operation

3V, 190mAh lithium batery (button) BR2032 for use in the standard temperature range (0°C to +70°C) 3V, 850mAh lithium batery (cylinder) CR14250 for use in the extendedtemperature range (-40°C to +85°C)

13829

13887

13926

1662 12666 10890 10891

11281 11282

1.3 Product Information

The SMART-BASE is a control module possessing an RS485 PROFIBUS and serial RS232 interface as standard and provision for up to three SMARTModules. The modules currently available are discussed later. Normally, the base unit is mounted on a DIN rail (see Weights & Measures section) which in turn may be fixed in a cabinet. SMART-EXT units may be attached in a similar manner.

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Introduction

SMART I/O User’s Manual

The attachment of both units is achieved by sliding them over the DIN rail with the clip assembly pulled out and then releasing it when correctly positioned.

The 24V supply source should possess the following characteristics:

Voltage Current

min ma x Continuous Peak

18V 36V 400mA 1.5A (2ms)

Because of power limitations, it should be noted that although up to 11 SMART-Modules are possible in a complete configuration, attention should be paid to the following tables that show the individual component power requirements. The maximum of 6750mW should not be exceeded as damage to the on-board DC-DC converter may result due to overheating or entering a reset status due to the thermal cutoff protection switching mechanism.

SM-BASEPower Consumption

min max

CPU Core 1500mW 1700mW Profibus 250mW 750mW

Module Power Consumption Module Power Consumption

min m a x min ma x

SM-DIN1 5mW 100mW SM-ADC1 350mW 450mW SM-DOUT1 5mW 270mW SM-DAC1 5mW 400mW SM-DAD1 350mW 450mW SM-DAC1 350mW 660mW SM-PT100 400mW 500mW SM-SSI unknown unknown SM-THERM 400mW 500mW SM-RS232 23mW 75mW SM-REL1 23mW 160mW

SMART I/O User’s Manual

An on-board fuse protects the 24V DC input circuitry from damage through higher voltages than those expected or AC voltages being inadvertently applied to the system. This fuse, should it be assumed defect (the Power In LED on the housing will not be illuminated), may be accessed by removing the cover of the SMART-BASE and accessing the holder on the left-hand side as shown in the illustration below.

Introduction

F1 0.60A M

R77

SCR2

123

In the event of a blown fuse, replace it with the same size and type as the one installed.

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C6 C7

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Introduction

1.4 Installation

SMART I/O User’s Manual

1.4.1 Overview

The SMART-BASE and SMART-EXT units are supplied without screw terminal blocks for the I/O slots, SMART Module piggybacks or blank panels. These must be ordered separately to meet the requirements of individual specifications.

SMART I/O User’s Manual

Up to 4 SMART-EXT units can be cascaded depending on the power consumption of the individual SMART Modules.

Introduction

SMART I/O Modules or blank panels must be ordered separately to the SMART-BASE or SMART-EXT units. Blank panels come in packs of 20.

Two RS232 cables are available. One terminates with a female 9-pin D-Sub connector for PC use and the other terminates in a male 25-pin D-Sub connector for Modem operation.

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Introduction

SMART I/O User’s Manual

Screw terminal connectors are available in packs of 5.

1.4.2 SMART I/O Module Installation

The SMART I/O Modules are fitted into the relevant sockets (ST1 - ST6; 3 slots) on the SMART-BASE or in sockets on the SMART-EXT unit. It is important that the Modules are inserted the correct way. The Figure below illustrates this procedure.

Figure 1.4.2.1 : SMART I/O Module Installation

SMART-Module

Socket

WARNING!

Once fitted on the board, the Module sockets and components should be on the right hand side of the Module.

SMART-Module

SMART I/O User’s Manual

1.4.3 RJ45 Telephone Connector Installation

The RJ45 connector is fitted into the RS232 Telephone connector (BU1) on the SMART-BASE. This is illustrated in the Figure below.

Figure 1.4.3.1 : RJ45 Telephone Connector Installation

SMART-BASE

Introduction

SCR2

BU1

RJ45 Connector

1.4.4 Screw Terminal Block Installation

The Screw Terminal Blocks are easily fitted to the SMART-BASE or SMART-EXT by pushing them onto the relevant Screw Terminal, as shown in the figure below.

Figure 1.4.4.1 : Screw Terminal Block Installation

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Introduction

SMART I/O User’s Manual

1.4.5 Battery Installation

The battery piggyback SMPBBAT is fitted into the socket BU3 on the SMART-BASE. It is important that the piggyback is inserted in the correct way. The figure below illustrates this procedure.

Figure 1.4.5.1: Battery Piggyback Installation

Pin 5

BU3

Pin 1

SMPBLED

SMPBBAT

Battery

Battery Type 3V Lithium BR2032 3V Lithium CR14250 Battery Capacity 190mAh 850mAh Typical Data Retention Time *140 Days 590 Days

* this is the time without the main power being applied

WARNING!

Once fitted on the board, the battery should be on the right hand side of the SMPBBAT piggyback. If the battery needs to be replaced, it must only be done with a replacement SMPBBAT piggyback, the order number of which is shown in the Ordering Information section of this manual.

The temperature on the battery must not exceed +70°C, due to the risk of battery damage! For SMART I/O modules with extended temperature ranges of up to 85°C, a special lithium battery must be fitted to the SMPBBAT.

SMART I/O User’s Manual

1.5 ISaGRAF-Installation

1.5.1 Before Installing

ISaGRAF is a Windows™ 3.xx based software development tool requiring a minimum of 10 MB of hard disk space and 4 MB of available memory.

Before installing ISaGRAF, make a backup copy of each DOS disk in the package and write-protect them to prevent accidental overwriting of files.

Note : The backup disks must have the same volume labels as the original ISaGRAF disks. Use the Windows Copy Disk... command on the Disk menu in the File Manager to create backup disks with the original volume labels and disk contents.

If it is intended to install ISaGRAF in a directory other than the default (C:\ISAWIN) then remember to provide the full path of the new directory when prompted during installation.

Introduction

Altogether, 10 DOS disks and 2 OS-9 disks are supplied for ISaGRAF installation; four for the Workbench, two composite and four for the ISaGRAF Target and are labelled:

“Workbench Disk 1/4” “Workbench Disk 2/4” “Workbench Disk 3/4” “Workbench Disk 4/4” “Lib/Appli/Help Disk 1/2” “Lib/Appli/Help Disk 2/2” “Samples for OS-9 1/1” “Target Disk 1/2” for DOS “Target Disk 2/2” for DOS “Profibus FMS for ISaGRAF, Documentation, Disk 1/1” “Target Disk 1/2” for OS-9 “Target Disk 2/2” for OS-9

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SMART I/O User’s Manual

1.5.2 Installation of the ISaGRAF for Windows Workbench

The following steps should be followed to ensure successful installation of the ISaGRAF software. Initially the disk labelled Workbench Disk 1/4 will be required.

• Start Windows

• Insert diskette Workbench Disk 1/4 into the floppy drive (usually A:)

• Select File from the Windows Program Manager and select Run ...

• Type A:\INSTALL in the command field and select OK

The ISaGRAF installation will start automatically. Figure 1.5.2.1 illustrates a typical opening screen.

Figure 1.5.2.1 Typical Opening Screen

SMART I/O User’s Manual

Having checked the installation directory (default is C:\ISAWIN) and selected Install, the program progresses by asking whether the complete system should be installed or just certain sections. The selection possibilities are shown in figure 1.5.2.2.

Introduction

Figure 1.5.2.2 Installation Selection

The default is for a complete installation, i.e. all files. Once confirmed, the installation copies the required files to the installation directory and unpacks their contents. This procedure will take a few minutes. Upon completion, the windows desktop will show a new program group containing the files shown in figure 1.5.2.3.

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Introduction

SMART I/O User’s Manual

Figure 1.5.2.3 ISaGRAF Program Group

1.5.3 Installation of PEP Library Functions

The library functions are adapted to suit the SMART I/O and other PEP products and should be installed using the two diskettes labelled LIB/ APPLI/HELP.

SMART I/O User’s Manual

These libraries for projects, I/O boards, ’C’ functions and common data are extracted by following the described procedure:

• Start Windows if not already started

• Insert diskette Lib/Appli/Help Disk 1/2 into the floppy drive

• Select File from the Windows Program Manager and select Run ...

• Type A:\INSTALL in the command field and select OK

Figure 1.5.3.1 illustrates the Installation Start-up screen.

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Figure 1.5.3.1 The Installation Start-up Screen

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Introduction

SMART I/O User’s Manual

It should be noted that the standard ISA-Terminal is configured for COM2. If another port is required then the switch to the new one is made by firstly starting the ISA-Terminal program and then selecting the Settings from the Communication pull-down menu. Here the possibility exists to select the desired communications port. When leaving the ISA-Terminal environment, remember to save the configuration if changes have been made.

The installation of the ISaGRAF development tool is now complete and access is provided to a full IEC1131-3 programming platform.

The following sections deal with the application of this tool with the SMART I/O and other PEP PLCs. Note that ‘C’ programming is not an option for the SMART I/O Starter Kit and if required must be ordered separately through one of the PEP offices or agents.

SMART I/O User’s Manual

In order to verify that the hardware and software have been correctly setup, the following procedure should be followed.

• Connect the D-Sub connector end of the terminal cable to the chosen COM port of the computer. The other end, with the telephone type connector should be pushed into place in the RS232-port of the SMART I/O base (see figure 1.4.3.1)

• With the power supply turned OFF, connect the power plug to SCR-2 on the SMART base.

• Start the ISA-Terminal program.

• Switch on the power supply to the SMART I/O; three green LEDs should illuminate on the control panel (not the SMART Modules!). The terminal should display the messages shown in figure 1.5.3.2.

Introduction

Page 1 - 24

Figure 1.5.3.2 Power Up Messages

March 12, 1996

Introduction

SMART I/O User’s Manual

The error messages that are shown in figure 1.5.3.2 are normal as the system is trying to create files or directories in the RAM disk that are already present.

If no further messages appear, then the installation is complete. Should the terminal result in anything different than shown then check through the installation steps again before contacting PEP for help.

The three green LEDs mentioned earlier show the state of

• PROFIBUS 5V

• System 5V and

• Power ON

SMART I/O User’s Manual

1.5.4 Demo Application

Several demonstration applications are delivered with the ISaGRAF set of disks and are installed automatically. The applications suitable for use with the SMART I/O are prefixed SM- and serve to show how the SMART I/O can be used through practical examples. Two such programs, the SM-

DEMO1 and 2 are discussed here :

SM_DEMO1 should be used if the SMART I/O has the SM_DOUT1

module in the first of the SMART Module slots and has SM_DIN1 in slot 2 (the last) on the SMART-BASE.

SM_DEMO2 should be used if the modules are reversed.

To install the demonstrations correctly, observe the following procedure and make sure the correct diskette is in place :

•Run the Projects Program and select SM_DEMO1 or SM_DEMO2 by

double clicking on the icon;

Introduction

•Go to the Debug/PC-PLC Link Menu to ensure that the correct COM

port is selected for communication to the SMART I/O;

•When confirmed, select Debug/Debug;

•From the Debugger Window, select File from the pull-down

menu if an application is already executing (indicated by Run in the status line);

Page 1 - 26

March 12, 1996

Introduction

SMART I/O User’s Manual

• Finally, from the Files/Download pull-down menu, select Motorola Target Code.

The chosen SM_DEMO will be downloaded to the SMART I/O (target system) and the application will begin automatically.

This is a simple SFC-program which will activate channel 7 of the SMDOUT1 when the first SFC-step (init) is encountered thereby illuminating the diode. During the next cycle, step 2 is encountered and activates channel 2 and at the same time deactivates channel 3. The program will wait for 1 second in this state before reversing the action. The effect is that the second and third LED illuminate alternately with a pause of 1 second between.

SMART I/O User’s Manual

This page has been left blank intentionally.

Introduction

Page 1 - 28

March 12, 1996

Chapter 2 SMART-BASE

2. SMART-BASE.........................................2-3

2.1 Specifications ......................................................................... 2-4

2.2 Board Overview ..................................................................... 2-5

2.3 Functional Description........................................................... 2-6

2.4 Configuration ......................................................................... 2-8

2.4.1 Jumper J1: Boot Selection (Pin Connector) ........................................ 2-8

2.4.2 Jumper J6: LED Function (Pin Connector) ......................................... 2-9

2.5 Pinouts ................................................................................... 2-9

2.5.1 SMART Module Piggyback Connectors........................................... 2-10

2.5.2 Screw Terminal Pinouts .................................................................... 2-12

2.5.3 Timer I/O Screw Terminal (SCR1) ...................................................2-12

2.5.4 Supply Screw Terminals (SCR2) ...................................................... 2-14

2.5.5 RS232 Telephone Connector (BU1) .................................................2-15

2.5.6 RS485 D-Sub Connector for Half-Duplex Operation (Profibus) ...... 2-15

2.5.7 SPI Connector (ST7) ......................................................................... 2-16

2.6 ‘C’ Programming ................................................................. 2-17

2.6.1 SMART-BASE Library ..................................................................... 2-17

2.6.2 SMTselIn ...........................................................................................2-18

2.6.3 SMTsettout ........................................................................................2-20

2.6.4 SMTpre .............................................................................................2-21

2.6.5 SMTstasto.......................................................................................... 2-23

2.6.6 SMTrd ............................................................................................... 2-24

2.6.7 SMTtin .............................................................................................. 2-25

2.6.8 SMTstat ............................................................................................. 2-26

2.6.9 SMTout.............................................................................................. 2-27

2.6.10 SMLed .............................................................................................2-28

2.6.11 SMwdon .......................................................................................... 2-29

2.6.12 SMwdtrig ......................................................................................... 2-30

2.6.13 SMwdoff .........................................................................................2-31

SMART I/O User’s Manual

Chapter 2 SMART-BASE

2.7 ISaGRAF Programming ...................................................... 2-32

2.7.1 The ISaGRAF Board Parameters ...................................................... 2-32

2.7.2 The ISaGRAF Operate Calls............................................................. 2-33

2.8 Flash Utility ......................................................................... 2-37

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March 12, 1996

Chapter 2 SMART-BASE

2. SMART-BASE

The SMART-BASE is the main unit to which up to three SMART-Modules may be connected to fulfil a given I/O task with I/O enhancement being provided through the connection of a SMART-EXT unit which itself may accommodate up to 2 SMART-Modules. A counter/timer is also a standard feature providing direct access to IRQ4 of the I/O controller. The driving force behind the SMART-BASE is the MC68302 microprocessor from Motorola operating at 20MHz.

The SMART-BASE, complete with built-in RS232 and RS485 (PROFIBUS) interfaces is connected to the outside world by RJ45 and 9-pin D-Sub connectors respectively. Connected SMART-Modules use industrial standard, plug-in screw terminals.

Program code is stored in EPROM or FLASH memory thereby doing away with disk accesses and ensuring data security in harsh industrial environments. A SMART-BASE unit with additional 1MByte FLASH memory may be ordered as an option in which to extend the standard code and supply user-specific functionality.

SMART I/O User’s Manual

2.1 Specifications

Nominal Input Voltage 24V DC Input Voltage Range 18V - 36V DC

Input Current Main Output Voltage 5V DC / 1.2A ± 2.5%

Auxiliary Output Voltage 5V DC / 150mA (PROFIBUS/RS485) ± 5% Switching Frequency 100kHz Main Output Ripple ± 10mV typ. Max. Efficiency 68% typ. (between 74% and 100% load) Galvanic Isolation 500V DC max. to/from supply source

CPU MC68302 @ 20MHz EPROM or FLASH* FLASH*

DRAM 512 kByte, byte/word access (16-bit) SRAM 64 kByte, byte/word access (16-bit) EEPROM 93C46, 32-byte system data Galvanic Isolation 2.5kV DC to/from process I/O

Temperature Range

- Storage

- Operating

- Extended Operating Humidity 0 to 95% non-condensing Weight 640g typ. without SMART-Modules, blank

Chapter 2 SMART-BASE

DC/DC

140mA typ. @ 24V (static) 400mA typ. @ 24V (full load)

Controlling Unit

1 MByte or 256 kByte on Jedec 32-pin sockets (16-bit access)

1 MByte or 256 kByte additionally soldered on rear side of the board (16-bit access)

Common

-40°C to + 85°C (without battery) 0°C to +70°C

-40°C to +85°C

panels or screw terminals

* Option

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March 12, 1996

Chapter 2 SMART-BASE

2.2 Board Overview

Front view

RS485 Isolated

(PROFIBUS)

SMART I/O User’s Manual

J13 J1

ST5 ST3 ST1 ST7

SPI

DC/DC

24V DC

Rear View

BU2

Status

Piggyback

SMPBLED

Battery Piggyback SMPBBAT

RS232

BU1SCR2 SCR1 SCR5 SCR4 SCR3

DRAM

UD LD

EPROM/FLASH

BU3

EPROM/FLASH

Timer

I/O

(SRAM)

RTC Quartz

68302FC20

RTC

I/O Controller

ST6 ST4 ST2

SMART Modules

I/O Slot #2I/O Slot #1I/O Slot #0

2 1

J15

Full DUPLEX RS485 (Option)

Optional FLASH

RS232 Driver

SMART I/O User’s Manual

2.3 Functional Description

Figure 2.3.0.1: SMART I/O Block Diagram

Chapter 2 SMART-BASE

Clock

Generators

Serial Interfaces

RS485 RS232

DC/DC

I/O Controller

Timer/Counter

Interface

MCU

MC68302

@ 20 MHz

SMART-Module

Interface

The MCU, an MC68302 microprocessor operating at 20 MHz is responsible for handling all communication between the various interfaces and on-board memory.

An RS485 highspeed PROFIBUS 2-wire interface is optically isolated from the system and may be configured for full duplex operation (a 4-wire interface available on request for OEM volume). Likewise, a fully configured RS232 modem interface is available for program downloading for example on SMART I/O systems supporting FLASH memory for this task or to the RAM disk etc.

Memory

FLASH

EPROM

SRAM

SPI

Interface

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March 12, 1996

Chapter 2 SMART-BASE

The isolated DC/DC converter is based on a switched mode regulating system operating at 100 kHz and supplies power to both the system and the isolated RS485 (PROFIBUS) interface.

The SPI interface, a 3-wire communication protocol providing SCLK, RxD and TxD is embedded within a larger 10-wire interface for handling communication between the base unit and SMART-Modules attached either directly or on extension units.

Up to three SMART-Modules are supported on the SMART-BASE unit with connection to the outside world being provided by industrial standard screw terminals. The same calibre of terminal is used for the counter/timer, which is directly coupled to the system I/O controller. A more detailed description of the counter/timer appears in the pinout section of this chapter.

Figure 2.3.0.2 shows the interrupt handling capability of the I/O controller. It should be noted that the controller can only be programmed with the use of a PEP defined software protocol that ensures compatibility in case of hardware changes.

SMART I/O User’s Manual

Figure 2.3.0.2 IRQ Capabilities

Smart Base

Smart

Module

IRQ

Int 1

Int 2

Interrupt

I/O

Timer

Logic

IRQ 4

Smart

Module

IRQ Int 3

IRQ 1

1st Smart Ext

Smart

Module

IRQ

Int 4

Smart

Module

Programmable

SMART I/O User’s Manual

Chapter 2 SMART-BASE

2.4 Configuration

The SMART BASE has 2 configurable jumpers which are explained in the following sections. The jumper settings marked in italics in the tables are default.

Figure 2.4.0.1: SMART BASE Jumper Layout (Front View)

RS485 Isolated

(PROFIBUS)

J13 J1

ST5 ST3 ST1 ST7

SPI

DC/DC

24V DC

BU2

Status

Piggyback

SMPBLED

Battery Piggyback SMPBBAT

RS232

BU1SCR2 SCR1 SCR5 SCR4 SCR3

DRAM

UD LD

EPROM/FLASH

BU3

EPROM/FLASH

Timer

I/O

(SRAM)

68302FC20

I/O Controller

ST6 ST4 ST2

SMART Modules

I/O Slot #2I/O Slot #1I/O Slot #0

2.4.1 Jumper J1: Boot Selection (Pin Connector)

The jumper J1 selects whether the SMART I/O boots directly from OS-9 or from ISaGRAF.

Jumper J1 Description

1-3 Application Boot (ISaGRAF)

1-2 OS-9 Shell Boot

Page 2 - 8

March 12, 1996

Chapter 2 SMART-BASE

2.4.2 Jumper J6: LED Function (Pin Connector)

This jumper selects the function of the red LED; halt or user defined. The user defined function that is supported in software will only take effect if this jumper is set accordingly.

SMART I/O User’s Manual

Jumper J6 Description

1-3 Processor HALT function monitor

1-2 User defined function

2.5 Pinouts

Figure 2.5.0.1: SMART-BASE Connector Overview

Pin 5

Pin 9

DC/DC

SCR2

Pin 1 Pin 2 Pin 3

BU2

Pin 6

B17

SMPBLED

BU1

Pin 1

Pin 8

Pin 1

UD LD

B10

Pin 5

BU3

Pin 1

EPROM/FLASH

B11

B16 B1

Pin 1

Pin 5

Pin 2

Pin 6

SCR1

68302FC20

Pin 1

Pin 2

Slot #0 Slot #1 Slot #2

SCR5 SCR4 SCR3

ST5

Slot #0 Slot #1 Slot #2

ST6

Pin 1

Pin 13

Pin 2

Pin 14

J13

Pin 15Pin 16

ST3

Pin 1Pin 2

Digital Side

Process SIde

Pin 15Pin 16

ST4

Pin 1Pin 2

Pin 13

Pin 14

Pin 15Pin 16

ST1

Pin 1Pin 2

Pin 15Pin 16

ST2

Pin 1Pin 2

Pin 1

Pin 2

Pin 1

Pin 15Pin 16

Pin 2

ST7

Pin 1Pin 2

Pin 10

Pin 9

Pin 15Pin 16

Pin 1Pin 2

Pin 13

Pin 14

WARNING !

Dangerous voltages may be present at the terminals.

SMART I/O User’s Manual

Chapter 2 SMART-BASE

Note

Slot# numbers are counted from #0 up to #10 while the ISaGRAF logic counts from #1 to #11!

2.5.1 SMART Module Piggyback Connectors

There are three sets of SMART Module piggyback connectors available on the SMART-BASE, each divided into two sets of 2x8 standard pin rows.

Pinouts digital side (ST1, ST3 and ST5)

SMART-Module location #0 (ST5) pinouts

Pin Nr. Signal Description Pin Nr. Signal Description

1 PA8 68302 Port A8 2 PA9 68302 Port A9 3 PA10 68302 Port A10 4 PA11 68302 Port A11 5 PA12 68302 Port A12 6 PA13 68302 Port A13 7 PA14 68302 Port A14 8 PA15 68302 Port A15

9 System GND GND 10 Serial RxD RxD 11 System VCC 5V VCC 12 Serial TxD TxD 13 CS-SM1 Port Select (Module 0) 14 Serial CLK CLK

15 Reset Reset (Power ON/OFF) 16 SM1 Interrupt PI/T

INT3 to the I/O Controller

SMART-Module location #1 (ST3) pinouts

Pin Nr. Signal Description Pin Nr. Signal Description

1 PITB0 I/O Controller Port B0 2 PITB1 I/O Controller Port B1 3 PITB2 I/O Controller Port B2 4 PITB3 I/O Controller Port B3 5 PITB4 I/O Controller Port B4 6 PITB5 I/O Controller Port B5 7 PITB6 I/O Controller Port B6 8 PITB7 I/O Controller Port B7

9 System GND GND 10 Serial RxD RxD 11 System VCC 5V VC C 12 Serial TxD TxD 13 CS-SM2 Port Select (Module 1) 14 Serial CLK CLK

15 Reset Reset (Power ON/OFF) 16 SM2 Interrupt PI/T

Page 2 - 10

INT2 to the I/O Controller

March 12, 1996

Chapter 2 SMART-BASE

SMART-Module location #2 (ST1) pinouts

Pin Nr. Signal Description Pin Nr. Signal Description

1 PITA0 I/O Controller Port A0 2 PITA1 I/O Controller Port A1 3 PITA2 I/O Controller Port A2 4 PITA3 I/O Controller Port A3 5 PITA4 I/O Controller Port A4 6 PITA5 I/O Controller Port A5 7 PITA6 I/O Controller Port A6 8 PITA7 I/O Controller Port A7

9 System GND GND 10 Serial RxD RxD 11 System VCC 5V VC C 12 Serial TxD TxD 13 CS-SM3 Port Select (Module 2) 14 Serial CLK CLK

15 Reset Reset (Power ON/OFF) 16 SM3 Interrupt PI/T

Pinouts process side (ST6, ST4 and ST2) for Modules #0 to #2

Pin Nr. Signal Pin Nr. Signal

1 Screw Terminal 13 2 Screw Terminal 13 3 Screw Terminal 1 4 Screw Terminal 2 5 Screw Terminal 3 6 Screw Terminal 4 7 Screw Terminal 5 8 Screw Terminal 6

9 Screw Terminal 7 10 Screw Terminal 8 11 Screw Terminal 9 12 Screw Terminal 10 13 Screw Terminal 11 14 Screw Terminal 12 15 Screw Terminal 14 16 Screw Terminal 14

SMART I/O User’s Manual

INT1 to the I/O Controller

The PC board connections to the screw terminals are capable of absorbing a continuous current of up to 3A each. However, pins 13 and 14 can support up to 6 Amps.

WARNING !

Dangerous voltages may be present at the terminals.

SMART I/O User’s Manual

Chapter 2 SMART-BASE

2.5.2 Screw Terminal Pinouts

The following shows the pinout for a screw terminal block suited for use with SMART-Modules. The pinouts of these blocks depends on the SMART Modules that are fitted.

Pin 1

Pin 2

Pin 13

Pin 14

2.5.3 Timer I/O Screw Terminal (SCR1)

Pin Nr. Signal Description Pin Nr. Signal Description

1 External VCC 5V VCC 2 TOUT Timer OUT 3 External GND Ground for TIN, TOUT 4 TIN Timer IN 5 External GND Ground for TGATE 6 GATE GATE Connection

Pin 1

Pin 5

Page 2 - 12

Pin 2

Pin 6

March 12, 1996

Chapter 2 SMART-BASE

To understand the functionality of the counter/timer, it is necessary to understand the purpose of TIN, TOUT and TGATE. Figure 2.5.3.1 shows the block diagram of TIN.

Figure: 2.5.3.1 Timer I/O (TIN) Schematic

SMART I/O User’s Manual

+Vcc (24V)

TINGATE

Gnd (common)

+Vcc (24V)

Gnd (common)

4 3

6 5

Input

Circuit

Input

Circuit

Low Pass Filter

Digital

Input

Timer I/O

TIN

GATE

The I/O Controller timer is used for the generation of the TOUT and TIN functions with the three timer I/O lines being fully isolated from the system. The internal clock of the timer/counter is 6MHz and can be prescaled to enable lower frequencies as necessary.

With the GATE permanently active (relay closed), every pulse detected on the TIN line will be acknowledged up to a frequency of 20kHz. Otherwise, TIN will only be recognized for the duration that the GATE is active.

SMART I/O User’s Manual

Chapter 2 SMART-BASE

Figure 2.5.3.2 shows the TOUT block diagram. Here, the output is only active when an interrupt on level 4 has been acknowledged by the I/O controller or a previously set timer has decremented to 0. The driving stage of the output consists of a Darlington connected transistor pair protected from inductive loads by a clamp diode. This TOUT line can generate squarewave pulses from 0.2ms to 178ms and can deliver 500mA continuously at 24V DC. The maximum frequency of TOUT is 5kHz.

Figure 2.5.3.2: Timer I/O (TOUT) Schematic

+Vcc (common)

Timer I/O

TOUT

Digital

Output

2.5.4 Supply Screw Terminals (SCR2)

Pin Nr. Signal

1 SHIELD 2 GND 3 +24V

Pin 1

Pin 3

Output

Stage

Load

Gnd

Page 2 - 14

March 12, 1996

Chapter 2 SMART-BASE

2.5.5 RS232 Telephone Connector (BU1)

In order to meet the needs of widespread standards, the RS232 connector is selected as a telephone connector, an 8-pin RJ12 telephone jack with full MODEM support.

SMART I/O User’s Manual

Pin Nr. Signal Description

1 DSR Data Set Ready 2 RTS Ready to Send 3 System GND System GND 4 TxD Transmit Line 5 RxD Receive Line 6 DCD Data Carrier Detect 7 CTS Clear to Send 8 DTR Data Terminal Ready

2.5.6 RS485 D-Sub Connector (BU2) for Half-Duplex Operation (Profibus)

Pin Nr. Signal Description Pin Nr. Signal Description

1 SHIELD Shield Isolation 6 Aux. +5V Auxiliary +5V 2 N/C Not Connected 7 N/C Not Connected 3 T/RxD + Transmit / Receive Line 8 T/RxD - Transmit / Receive Line 4 CNTR +* Control Line 9 CNTR -* Control Line 5 Aux. GND Auxiliary Ground

* optional, for full-duplex operation

12 8

9 6

SMART I/O User’s Manual

Chapter 2 SMART-BASE

The full-duplex description may be found in the SMART-I/O Advanced

User’s Guide.

Note

There is no internal line termination as laid down in DIN 19245 Part 1 and must be performed externally.

Aux. +5V, 90mA

The line termination is achieved as shown in the figure. Assuming a power supply voltage of +5V emanating from the PROFIBUS connector (pin 6), the following resistor

T/RxD +

values are recommended.

150Ω ± 2%, min 0.25W

390Ω ± 2%, min 0.25W

T/RxD -

Ru = 390Ω

= 150Ω

= 390Ω

Aux. GND

2.5.7 SPI Connector (ST7)

The SPI connector is a 2x5 standard pinrow connector, located on the righthand side of the SMART-BASE to enable easy connection of the SMARTEXT module using a flat ribbon cable connection.

Pin Nr. Signal Pin Nr. Signal

1 System VCC 2 Serial RxD

Pin 1 Pin 2

3 System VCC 4 Serial TxD 5 Serial Ext. Select 6 Serial CLK 7 System GND 8 Reset

9 System GND 10

Page 2 - 16

Serial Ext. Interrupt (Controller I/O IRQ4)

Pin 9 Pin 10

SMART-BASE

ST7

March 12, 1996

Chapter 2 SMART-BASE

2.6 ‘C’ Programming

2.6.1 SMART-BASE Library

The SMART-BASE library of functions smartio.l provide a convenient way of accessing various features of the SMART-BASE.

• All functions are written in ANSI C;

• Prototypes are to be found in the file BSP/SMART/DEFS/SMAC.h.

Hardware Requirements

• SMART I/O Base Module.

Software Requirements

The compiler from one of the following:

SMART I/O User’s Manual

• Ultra C Version 1.1.2 or higher;

• FasTrak 2.0.2 or higher.

The examples provided here are primarily concerned with the timer/counter. Other aspects of SMART BASE programming may be found in the Advanced User’s guide.

SMART I/O User’s Manual

2.6.2 SMTselIn

Syntax

error_code SMTselIn(u_int8 mode);

Description

This function selects one of four possible counter/timer input (TIN) configurations utilizing the 6MHz internal counter/timer clock.

Input

Chapter 2 SMART-BASE

u_int8 mode

This represents the four input configurations. They are:

MODE00

the Simple I/O and the CLK and prescaler are used. The prescaler is decremented on the falling transition of the clock pin; the 24-bit counter is decremented, rolls over or is loaded from the counter preload registers when the prescaler rolls over from $00 to $1F.

MODE01

input and the CLK and prescaler are used. The prescaler and counter are decremented as in MODE00.

MODE10

timer input and the prescaler is used. The prescaler is decremented following the rising transition of the TIN pin after being synchronized with the internal clock. The 24-bit counter is decremented, rolls over or is loaded from the counter preload registers when the prescaler rolls over from $00 to $1F.

The Simple I/O/TIN input pin carries

The Simple I/O/TIN serves as a timer

The Simple I/O/TIN pin serves as a

Page 2 - 18

March 12, 1996

Chapter 2 SMART-BASE

SMART I/O User’s Manual

MODE11

timer input and the prescaler is not used. The 24-bit counter is decremented, rolls over or is loaded from the counter preload registers following the rising edge of the TIN pin after being synchronized with the internal clock.

Output

error_code SUCCESS

E_BMODE

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Example

RetVal = SMTselIn(MODE00);

The counter/timer contains a 24-bit synchronous down counter that is loaded from three 8-bit counter preload registers. The 24-bit counter may be clocked by the output of a 5-bit (divide by 32) prescaler or by an external timer input (TIN). If the prescaler is used, it may be clocked by the system clock (6 MHz CLK pin) or by the TIN external input. The counter signals the occurrence of an event primarily through zero detection. (A zero is when the counter of the 24-bit timer is equal to zero). This sets the zero detect status (ZDS) bit in the timer status register. It may be checked by the processor or may be used to generate a timer interrupt. The ZDS bit can be reset by writing a one to the timer status register in that bit position independent of timer operation.

The Simple I/O/TIN pin serves as a

Unsupported mode

The general operation of the timer is flexible and easily programmable. The timer is fully configured and controlled by programming the 8-bit timer control register. It controls 1) the choice between Simple I/O operation and the timer operation of the three timer pins, 2) whether the counter is loaded from the counter preload registers or rolls over when zero detect is reached,

3) the clock input, 4) whether the prescaler is used and 5) whether the timer is enabled.

SMART I/O User’s Manual

2.6.3 SMTsettout

Syntax

error_code SMTsettout(u_int8 mode);

Description

This function sets the timer output (TOUT) control.

Input

u_int8 mode

Output

error_code SUCCESS

Two modes of TOUT control are available. They are:

MODE_PORTC MODE_SQUARE

When the timer is stopped, tout is high (see diagram).

E_BMODE

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Chapter 2 SMART-BASE

tout has the Simple I/O function. tout toggles on counter zero.

Unsupported mode

Example

RetVal = SMTsettout(MODE_SQUARE);

OUT

OFF

Timer

Stop

The high state of TOUT illustrated in the above diagram shows that the output is deactivated i.e. OFF. Only when TOUT is in the low state can a load be driven.

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March 12, 1996

Chapter 2 SMART-BASE

2.6.4 SMTpre

Syntax

error_code SMTpre(u_int32 *value);

SMART I/O User’s Manual

Description

This function reads / sets the timer preload register.

Input

u_int32 *value

Output

error_code SUCCESS

Example

RetVal = SMTpre(0);

Pointer to a variable that holds the value to set. The previous value is returned to the variable. If value is 0, only the read is performed.

E_BMODE

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Requested value is out of range

SMART I/O User’s Manual

Chapter 2 SMART-BASE

Example for a Square Wave Generator

The Timer Control Register

76543210

TOUT/TIAC

Control

0 1 x 0 0 00 or 1x Changed

Z.D.

Control

•

Clock

Control

Timer

Enable

In this configuration, the timer produces a square wave at the TOUT pin which is connected to the user’s circuitry. The TIN pin may be used as a clock input. The processor loads the counter preload registers and the timer control register and then enables the timer. When the 24-bit counter passes from $000001 to $000000, the ZDS status bit is set and the TOUT is toggled. At the next clock to the 24-bit counter it is again loaded with the contents of the CPRs and thereafter decrements.

Page 2 - 22

March 12, 1996

Chapter 2 SMART-BASE

2.6.5 SMTstasto

Syntax

error_code SMTstasto(u_int8 mode);

SMART I/O User’s Manual

Description

This function starts / stops the timer; the zero-detect control bit is set at the start; the counter rolls over on reaching zero or is loaded with the value set in the preload register and continues counting down.

Input

u_int8 mod

Output

error_code SUCCESS

Example

RetVal = SMTstasto(TMR_STRT);

e Two modes are available. They are:

TMR_STRT TMR_STOP

E_BMODE

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Start timer Stop timer

Unsupported mode

SMART I/O User’s Manual

2.6.6 SMTrd

Syntax

error_code SMTrd(u_int32 *value);

Description

This function reads the actual timer count value.

Chapter 2 SMART-BASE

NOTE !

A stable read value can only be achieved if the timer is not running. Therefore, a read request to the running timer terminates with

E_DEVBSY.

Input

u_int32 *value

Output

error_code SUCCESS

E_DEVBSY

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Example

RetVal = SMTrd(buffer);

Page 2 - 24

Pointer to a variable in which to place the read value.

Timer is currently running

March 12, 1996

Chapter 2 SMART-BASE

2.6.7 SMTtin

Syntax

error_code SMTtin(u_int8 *value);

SMART I/O User’s Manual

Description

This function reads the current level present on TIN/PC2.

Input

u_int8 *value

Output

error_code SUCCESS

Example

RetVal = SMTin(buffer);

Pointer to a variable in which to place the read value. 0 represents low, 1 represents high

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

SMART I/O User’s Manual

2.6.8 SMTstat

Syntax

error_code SMTstat(u_int8 *value);

Description

This function reads the timer status register and clears it if set.

Input

u_int8 *value

Output

error_code SUCCESS

Pointer to a variable in which to place the read value. 0 represents not set, 1 represents set

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Chapter 2 SMART-BASE

Example

RetVal = SMTstat(buffer);

Description of the Timer Status Register (TSR)

76543210

•••••••ZDS

The timer status register contains one bit from which the zero detect status can be determined. The ZDS status bit (bit 0) is an edge-sensitive flip-flop that is set to one when the 24-bit counter decrements from $000001 to $000000. The ZDS status bit is cleared to zero following the direct reset operation or when the timer is halted. This register is always readable without consequence. A write access performs a direct reset operation if bit 0 in the written data is one!

Page 2 - 26

March 12, 1996

Chapter 2 SMART-BASE

2.6.9 SMTout

Syntax

error_code SMTout(u_int8 *value);

SMART I/O User’s Manual

Description

This function reads the actual status of the TOUT pin.

Input

u_int8 *value

Output

error_code SUCCESS

Example

RetVal = SMTout(buffer);

Pointer to a variable in which to place the read value. 0 represents a low level while a 1 represents a high level.

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

SMART I/O User’s Manual

2.6.10 SMLed

Syntax

error_code SMLed(u_int8 led, u_int8 value);

Description

This function switches on / off user LED’s.

Input

u_int8 led

Two options are available. They are:

USERL1 USERL2

if the LED is not jumpered as 68302 HALT.

Yellow LED on piggyback Red LED on piggyback (only

Chapter 2 SMART-BASE

u_int8 value

Output

error_code SUCCESS

E_BMODE

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Example

RetVal = SMLed(USERL1, 0);

Page 2 - 28

Indicates the status of the LED. 0 Switch LED off Not 0 Switch LED on

LED does not exist

March 12, 1996

Chapter 2 SMART-BASE

2.6.11 SMwdon

Syntax

error_code SMwdon(u_int32 *time);

SMART I/O User’s Manual

Description

This function activates the watchdog timer of the 68302. If timeout is reached, the system is reset; in normal operating mode, this must be avoided by periodically triggering the watchdog using the function SMwdtrig.

Input

u_int32 *time

Output

error_code SUCCESS

Example

RetVal = SMwdon(time);

Time in ms. The range is from 1ms to approx. 13 seconds. The function returns the real set time in *time.

E_BMODE

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Time is out of range or subsequent error

SMART I/O User’s Manual

2.6.12 SMwdtrig

Syntax

error_code SMwdtrig(void);

Description

This function re-triggers the watchdog of the 68302 preventing a timeout and subsequent system reset.

Output

error_code SUCCESS

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Example

RetVar = SMwdtrig();

Chapter 2 SMART-BASE

Page 2 - 30

March 12, 1996

Chapter 2 SMART-BASE

2.6.13 SMwdoff

Syntax

error_code SMwdoff(void);

SMART I/O User’s Manual

Description

This function deactivates the watchdog timer.

Output

error_code SUCCESS

or standard OS-9 error code (refer to the OS-9 Technical Manual Error Codes Section).

Example

RetVar = SMwdoff();

SMART I/O User’s Manual

Chapter 2 SMART-BASE

2.7 ISaGRAF Programming

2.7.1 The ISaGRAF Board Parameters

Information on board parameters may be found in the PEP online help and ISaGRAF online help or user’s manual.

Figure 2.7.1.1 Typical Screen Section for the SMART-BASE

Because the communication to the timer/counter is performed using Operate Calls, there is no need for manual selection of such things as a logical address etc. the operate call to decide which port to access.

t_in

represents a variable for the counter timer and is used for

Page 2 - 32

March 12, 1996

Chapter 2 SMART-BASE

2.7.2 The ISaGRAF Operate Calls

Operate calls are built into a program using ST or FBD languages when defining the project. A typical use could be at the initialization stage to check that the SMART-Modules are in fact located where they have been programmed to be. The syntax of the operate call is as follows:

SMART I/O User’s Manual

Syntax:

<return variable> := OPERATE(<source var>, COMMAND,

<source data>);

Here the return variable is assigned a value associated with the selected COMMAND parameter. A number of these COMMANDS exist for the SMART-BASE.

Example:

<error.code>:= OPERATE(<channel>, O_INIT_CODE, 0);

O_INIT_CODE is one of a number of distinct commands recognized by the

PEP Modular Computers’ implementation of board drivers and checks for example that a SMART-Module is located where the program expects it to be.

channel provides channel specific information and in the example shown here, any of the input channels may be used. The last parameter is not usually used by PEP implementations and is set to 0 (zero).

The error.code returns a value of zero if no error was detected, otherwise it returns a non-zero value depending on the error encountered. A list of these error codes may be found in the PEP online help.

SMART I/O User’s Manual

Chapter 2 SMART-BASE

A complete list of the operate COMMANDS may be obtained by selecting a project from the ISaGRAF projects group, opening an application and observing the Common defines in the Dictionary pull-down menu. Note that not all calls in the list may be used within the SMART I/O environment however, the calls applicable to this module are :

O_INIT_CODE : The syntax and usage have already been explained.

O_POWERFAIL_SET : The purpose of this operate call is to detect when

(if) the power to the PLC (SMART I/O) has failed. The function is normally built into the initialization stage of an application and has the following syntax :

RetVar := OPERATE(s_time, O_POWERFAIL_SET, 0);

When the application is initialized, the start time is recorded in battery backed ram (1) at the given address (

s_time

). If the power to the PLC fails (2) and recovers at a later stage (3), the software makes a comparison with the actual clock time (via the RTC) and the time stored in this memory location. If a discrepancy exists then the RetVar will record this fact. Refer to the PEP online help for more information pertaining to the implementation of this operate call.

Voltage

Page 2 - 34

123

Time

March 12, 1996

Chapter 2 SMART-BASE

O_START_COUNTER : This call starts the counter; it’s syntax is as follows :

<RetVar> := OPERATE(<iovar>, O_START_COUNTER, <null>);

SMART I/O User’s Manual

where the

O_READ_COUNTER : With this call the contents of the counter register

may be read. When this call is issued, the counter is stopped, it’s register read and then restarted. If a high-frequency input exists then pulses may be lost (not counted). The same effect may also be true due to timeslicing during timer stop and start operations. Therefore it is recommended that this call be only used for low frequency inputs (<1kHz). There is no detection for counter overflow and the call should not be used for count down operations or square wave generation. It’s syntax is as follows :

<RetVar> := OPERATE(<iovar>, O_READ_COUNTER, <null>);

where the

O_STOP_COUNTER : This call stops the counter counting up or down and

square-wave generation and has the following syntax :

<RetVar> := OPERATE(<iovar>, O_STOP_COUNTER, <null>);

where the

<iovar>

is typically t_in.

The counter/timer is configured automatically as MODE10 (refer to the ‘C’ Programming section) and from within ISaGRAF there is no ability to alter this configuration.

SMART I/O User’s Manual

O_PRELOAD : With this call the counter preload register can be

set. The syntax is as follows :

<RetVar> := OPERATE(<iovar>, O_PRELOAD, <prevar>);

Chapter 2 SMART-BASE

where the <prevar> which lies between 1 and 0xFFFFFF.

O_START_CNTDWN : This function starts the counter counting-down.

When the counter reaches zero, it rolls over to the maximum value of 0xFFFFFF on the following clock pulse and starts afresh. The syntax is as follows :

<RetVar> := OPERATE(<iovar>,O_START_CNTDWN,<prevar>);

where the Timer I/O (typically t_in) and one of 6 MHz/32 clock input or t_in inputs.

<iovar>

is the value for the preload register

<iovar>

OA_PITCLOCK

is typically t_in and

is a variable attached to the

for selection of the

OA_TIN

for selection of

may be

Page 2 - 36

March 12, 1996

Chapter 2 SMART-BASE

2.8 Flash Utility

The flash utility allows ISaGRAF applications, a new ISaGRAF kernel or other OS-9 modules to be loaded into FLASH memory. The SMART I/O may be equipped with 1 MByte of memory depending on the version ordered. If an application is stored in FLASH then it will be loaded into the system at start-up.

The main features of this utility are:

• Erase memory

• Fill memory

• Append memory

• Read memory

The following syntax should be observed:

flash -b[board] <parameter(s)>

SMART I/O User’s Manual

Examples

To erase the FLASH:

Isa: flash -b=SMART -p=ff

To write a file to FLASH (base address is $D00000):

flash -b=SMART -d=d00000 -i=path/filename

To append a file to existing FLASH contents:

flash -b=SMART -d=d00000 -u -i=path/filename

SMART I/O User’s Manual

Example to download ISA11 module and store in FLASH

Start the isa terminal in MS Windows:

Press the <ENTER> key three times to display the following screen prompt:

Isa:

Start kermit on the target system

Isa: kermit ri <ENTER>

Select the menu item transfers-send binary file from the windows terminal and select the file flash on the PC to transfer

Load flash into memory

Isa: load -ld/dd/APL/flash

Chapter 2 SMART-BASE

Start kermit on the target system again

Isa: kermit ri <ENTER>

Select the menu item transfers-send binary file from the windows terminal and select the file isa11 on the PC to transfer

Append the file to the existing flash contents

flash -b=SMART -d=d00000 -u -i=/dd/APL/isa11

Page 2 - 38

March 12, 1996

Chapter 3 SMART-EXT

3. SMART-EXT ...........................................3-3

3.1 Specifications ......................................................................... 3-3

3.2 Board Overview ..................................................................... 3-4

3.3 Functional Description........................................................... 3-5

3.4 Pinouts ................................................................................... 3-6

3.4.1 SMART Module Piggyback Connectors............................................. 3-7

3.4.2 Parallel I/O Screw Terminals (SCRA and SCRB) .............................. 3-8

3.4.3 SPI Connectors (ST5 and BU1) .......................................................... 3-9

SMART I/O User’s Manual

This page has been left blank intentionally

Chapter 3 SMART-EXT

Page 3 - 2

March 12, 1996

Chapter 3 SMART-EXT

3. SMART-EXT

The SMART-EXT is a carrier unit enabling the connection of a further 2 SMART-Modules thereby enhancing the I/O capacity of the SMART I/O system. Up to 4 of these extensions may be cascaded via a 10-wire flat-band cable with integrated 3-wire SPI (Serial Peripheral Interface). To achieve a common interface between modules, a SMART I/O ‘C’ library is provided by PEP.

3.1 Specifications

SMART I/O User’s Manual

Controller

- Frequency

- Firmware Interface Speed Set to 1 MHz

Power Consumption Typ. 25 mW Temperature Range

- Storage

- Standard

- Extended Operating Humidity 0 to 95% non-condensing

Weight

The SPI follows a Motorola defined communication protocol which is beyond the scope of this manual to describe. More information may be found by referring to the relevant data-sheets.

MC68HC705C8A 4 MHz PEP Firmware for OTP device

-20°C to + 125°C 0°C to +70°C

-40°C to +85°C 260g (without modules, blank

panels or screw terminals

SMART I/O User’s Manual

3.2 Board Overview

From SMART-BASE or other SMART-EXT Modules

SPI

BU1

ST3 ST1

MCU

68HC05C4

ST4 ST2

SMART Modules

I/O Slot BI/O Slot A

Chapter 3 SMART-EXT

SPI ST5

To further SMART-EXT Modules

Page 3 - 4

SCRA SCRB

March 12, 1996

Chapter 3 SMART-EXT

3.3 Functional Description

Figure 3.3.1: SMART-EXT Block Diagram

SMART I/O User’s Manual

Interface

Connector

with

Integrated

SPI

Slot Detect

Logic and

Slot

Buffer

Slot

Interface

Connector

with

Integrated

SPI

The SMART-EXT is a carrier board for up to 2 SMART-Modules with data transfer between SMART-BASE and EXT units being performed by the interface connector incorporating the Motorola synchronous Serial Peripheral Interface (SPI).

The maximum bit transfer rate is set to 1 MHz which ensures a typical response time from an addressed extension slot of approximately 50µs.

The MCU (Micro Controller Unit - 68HC05C4) handles the SPI transfers and the slot-dependent commands and actions through the SMART-EXT firmware burned into the MCU mask or in an OTP (One-Time Programmable) PROM area.

In order to communicate with a particular SMART-EXT slot, a specific PEP defined protocol has to be observed. All necessary functions are provided in the OS-9 ‘C’ library SMAC.L which should be included when writing a specific C’ application program.

SMART I/O User’s Manual

3.4 Pinouts

Figure 3.4.0.1: SMART-EXT Pinout Overview

Chapter 3 SMART-EXT

SPI

Pin 1

Pin 9

Pin 2

BU1

Pin 10

Pin 15Pin 16

ST1

Pin 1Pin 2

Slot A

Process SIde

Pin 15Pin 16

ST2

Pin 1Pin 2

Slot A Slot B

Pin 1

Pin 2

Slot #3,5,7,9 Slot #4,6,8,10

Pin 13

Pin 14

Pin 1

Pin 2

SCRA SCRB

WARNING !

ST3

Digital Side

ST4

Slot B

Pin 13

Pin 15Pin 16

Pin 1Pin 2

Pin 15Pin 16

Pin 1Pin 2

Pin 14

SPI

Pin 1

Pin 2

ST5

Pin 10

Pin 9

Page 3 - 6

Dangerous voltages may be present at the terminals.

March 12, 1996

Chapter 3 SMART-EXT

3.4.1 SMART Module Piggyback Connectors

There are two sets (one for each module) of SMART-Module piggyback connectors present on the SMART-EXT, each divided into two sets of 2x8 standard pin rows. The communication to these connectors is achieved in part via the 10-wire flat-band interface cable and directly by the MCU.

Pinouts digital side (ST1 and ST3)

Refer to figure 3.4.0.1 for the correct location of these pin-row connectors.

SMART I/O User’s Manual

Slot A from 68HC05C4 MCU port A (ST1)

Pin Nr. Signal Description Pin Nr. Signal Description

1 PA1 Port A Pin 1 2 PA2 Port A Pin 2 3 PA3 Port A Pin 3 4 PA4 Port A Pin 4 5 PA5 Port A Pin 5 6 PA6 Port A Pin 6 7 PA7 Port A Pin 7 8 PA8 Port A Pin 8

9 System GND GND 10 Serial RxD RxD to SM-BASE 11 System VCC System +5V VCC 12 Serial TxD TxD from SM-BASE 13 CS-SLOTA Chip Select A 14 Serial CLK CLK from SM-BASE

15 Reset Power ON/OFF Reset 16 Slot A Interrupt line

INT4 to the I/O Controller

Slot B from 68HC05C4 MCU port B (ST3)

Pin Nr. Signal Description Pin Nr. Signal Description

1 PB1 Port B Pin 1 2 PB2 Port B Pin 2

3 PB3 Port B Pin 3 4 PB4 Port B Pin 4

5 PB5 Port B Pin 5 6 PB6 Port B Pin 6

7 PB7 Port B Pin 7 8 PB8 Port B Pin 8

9 System GND GND 10 Serial RxD RxD from SM-BASE 11 System VCC System +5V VCC 12 Serial TxD TxD from SM-BASE 13 CS-SLOTB Chip Select B 14 Serial CLK CLK from SM-BASE 15 Reset Power ON/OFF Reset 16 Slot B Interrupt line Interrupt PI/T (H4)

SMART I/O User’s Manual

Pinouts process side (ST2 and ST4)

Refer to figure 3.4.0.1 for the correct location of these pin-row connectors.

Slots A and B (ST2 and ST4)

Pin Nr. Signal Pin Nr. Signal

1 Screw Terminal 13 2 Screw Terminal 13 3 Screw Terminal 1 4 Screw Terminal 2 5 Screw Terminal 3 6 Screw Terminal 4 7 Screw Terminal 5 8 Screw Terminal 6

9 Screw Terminal 7 10 Screw Terminal 8 11 Screw Terminal 9 12 Screw Terminal 10 13 Screw Terminal 11 14 Screw Terminal 12 15 Screw Terminal 14 16 Screw Terminal 14

The PC board connections to the screw terminals are capable of absorbing a continuous current of up to 3A each. However, pins 13 and 14 can support up to 6 Amps.

Chapter 3 SMART-EXT

WARNING !

Dangerous voltages may be present at the terminals.

3.4.2 Parallel I/O Screw Terminals (SCRA and SCRB)

The screw terminal blocks are individually composed of 7 free connections which, when stacked provide 14 free connections per I/O slot. The pinout functionality depends on the type of SMART-Modules fitted and the relevant module should be referred to in the appropriate section of this manual.

Page 3 - 8

March 12, 1996

Chapter 3 SMART-EXT

3.4.3 SPI Connectors (ST5 and BU1)

On both sides of the board are standard 2x5 pinrow connectors (BU1, ST5), that provide the interface connection between SMART-EXT units and the SMART-BASE.

A 10-wire flat cable is soldered directly on the left-hand side of the board (BU1), that interfaces the SMART-BASE module or other (earlier cascaded) SMART-EXT modules.

SMART I/O User’s Manual

Pinouts for this 10-pin connector

Pin Nr. Signal Pin Nr. Signal

1 System VCC (+5V) 2 Serial RxD from SMART-BASE 3 System VCC (+5V) 4 Serial TxD from SMART-BASE 5 Serial Ext. Select 6 Serial CLK from SMART-BASE 7 System GND 8 Reset (Power ON/OFF)

9 System GND 10 (BU1)

10 (ST5) N/C

Pin 10 of BU1 is only useful on the first SMART-EXT connected to the SMART-BASE. For this reason, SMART-Modules utilizing this feature can only be connected to the first slot of the first extension unit.

Serial Ext. Interrupt (INT4 1st Module only)

Note

SMART I/O User’s Manual

This page has been left blank intentionally.

Chapter 3 SMART-EXT

Page 3 - 10

March 12, 1996

Digital Modules

SMART I/O User’s Manual

08 Jan. 98

Page 4 - 1Manual ID 09901, Rev. Index 0500

SMART I/O User’s Manual

Table of Contents

Digital Modules

Chapter

4.1 SM-DIN1............ ................. .. ................. ... 4-5

4.1.1Introduction .................................................. 4-5

4.1.2Specifications .............................................. 4-5

4.1.3Front Panel Layout ...................................... 4-6

4.1.4Board Overview ........................................... 4-7

4.1.5Functional Description ................................. 4-8

4.1.6 Configuration ............................................... 4-9

4.1.7Pinouts ...................................................... 4-10

4.1.8‘C’ Programming .............................. ..... ..... 4-12

4.1.9ISaGRAF Programming ............................. 4-16

4.2 SM-DOUT1......................... ................. ... 4 -1 9

4.2.1Introduction ................................................ 4-19

4.2.2Specifications ............................................ 4-19

4.2.3Front Panel Layout .................................... 4-20

4.2.4Board Overview ......................................... 4-20

4.2.5Functional Description ............................... 4-21

4.2.6 Configuration ............................................. 4-22

Page 4 - 2

08 Jan. 98Manual ID 09901, Rev. Index 0500

Digital Modules

SMART I/O User’s Manual

4.2.7 Pinouts ...................................................... 4-22

4.2.9ISaGRAF Programming ............................ 4-29

4.3 SM-REL1................................................ 4-33

4.3.1Introduction ............................................... 4-33

4.3.2 Specifications ............................................ 4-33

4.3.3Front Panel Layout ................................ .... 4-34

4.3.4Board Overview ........................................ 4-34

4.3.5Functional Description .............................. 4-35

4.3.6Configuration ............................................. 4-36

4.3.7 Pinouts ...................................................... 4-36

4.3.8‘C’ Programming ....................................... 4-38

4.4 SM-ACI1................................................. 4-53

4.4.1Introduction................................................ 4-53

4.4.2 Specifications ............................................ 4-54

4.4.3Front Panel Layout ................................ .... 4-55

4.4.4Board Overview ........................................ 4-56

4.4.5Functional Description .............................. 4-58

4.4.6Configuration ............................................. 4-59

4.4.7Screw Terminal Pinouts ............................ 4-61

4.4.8‘C’ Programming ....................................... 4-64

4.4.9ISaGraf Programming................................ 4-68

08 Jan. 98

Page 4 - 3Manual ID 09901, Rev. Index 0500

This page was intentionally left blank.

Chapter 4 Digital Modules

4. Digital Modules

4.1 SM-DIN1

4.1.1 Introduction

The SM-DIN1 provides 8 optoisolated 24V DC digital inputs arranged in 6 independent groups with respect to the ground connections. The maximum input switching frequency is set to 200Hz with the system registering a logical ‘1’ when the input exceeds 10V. Logical ‘0’ is returned when the input falls below 8V. A low-pass filter restricts signals exceeding the filter limit and registers a logical ‘0’ with the system. The user interface is realized by 8 green LEDs (one per input channel) which illuminate when the input exceeds 10V DC and a configurable filter on the last channel for INTx interrupts (where ‘x’ lies between 1 and 4 depending on which slot the module is located).

4.1.2 Specifications

SMART I/O User’s Manual

Isolation 2.5 kV optoisolated from the system Input

Front Panel Green LEDs (ON when Input > 10V) Options User configurable R-C filter on the

Power Consumption 5mW (min.), 100mW (max.) Temperature Range Standard (0°C to +70°C), Extended (-40°C to +85°C) Module Weight 40g ID Byte $01, read by the SPI Interface

8 Digital Channels (24V) DC ± 10% 6 Independent Groups Common GND < 5mA Input Current Filter set to 200 Hz (5ms) Overvoltage Protection (rate) Overvoltage Protection (continuous) Switch ON Delay Switch OFF Delay High Level Low Level

last channel for INTx generation

: 300V/90µs : 35V : 2ms (approx.) : 2ms (approx.) : > 10V : < 8V

SMART I/O User’s Manual

4.1.3 Front Panel Layout

Green LEDs

Chapter 4 Digital Modules

User Descriptor Fields

Page 4 - 6

March 12, 1996

Chapter 4 Digital Modules

4.1.4 Board Overview

Component Side

Input Circuit

Optoisolation

Low Pass Filter

SMART I/O User’s Manual

LED 0LED 7

ID Register

Digital Input and LED Drivers

Solder Side

Pin 1

Pin 2

LED 0

Pin 16

Pin 15

BU1 BU2

Pin 16

BU2

Pin 2

Pin 1

Pin 2

LED 7

2 1 3

1 3

Pin 16 Pin 2

Pin 15

Pin 16

BU1

SMART I/O User’s Manual

4.1.5 Functional Description

Figure 4.1.5.1: SM-DIN1 Schematic Diagram

Chapter 4 Digital Modules

+Vcc (24V)

Gnd (common)

User/Input

Interface

Input

Circuit

Low Pass Filter

System

Interface

Digital

Input

LED

Driver

System

Interface

The input circuit comprises a Zener diode requiring 3mA to drive it beyond the ‘knee’ that borders between ‘OFF’ and ‘ON’. More simply, input voltages between 8V and 10V DC produce an unknown digital result.

After the optoisolation part of the circuit, an R-C first-order, low-pass filter prevents noise and signals greater than 200Hz from entering the system digital input. This filter is factory set on all channels but may be altered to a value according to customer specifications.

The LED driver activates the relevant LED when the input exceeds 10V DC.

As previously mentioned, the last channel is capable of issuing IRQx interrupts when enabled by software. This interrupt will only be acknowledged under OS-9 if the module is on the SMART-BASE or occupies the first slot of the first attached SMART-EXT unit. This channel is factory set at 200Hz but higher frequencies may be catered for. The table below shows the solderjumper settings for this filter configuration.

Page 4 - 8

Jumper Settings Description

1-2 Standard input filter 200Hz

1-3 Customer specific input filter

1-2 Standard input filter 200Hz

1-3 Customer specific input filter

March 12, 1996

Chapter 4 Digital Modules

4.1.6 Configuration

Although two solder jumpers exist on the board (J1 and J2), they should remain at their factory settings unless a user-specific filter is required that cuts off at higher frequencies for example. If a user-specific filter is required then contact PEP Modular Computers for further advice and refer to the illustration shown in figure 4.1.6.1 of the filtering components.

Figure 4.1.6.1: SM-DIN1 Configurable Filter

Vcc

36k

SMART I/O User’s Manual

IC10

36k

C13 100nF

INTx

HCT14

Surface Mounted Devices (SMD) are used in the production of the SMDIN1 modules. The components to be changed (marked with an asterisk in figure 4.1.6.1), need not necessarily be SMD. Refer to the Board Overview (solder side) for the approximate position of these jumpers. It should be noted that when calculating component values for a specific filter, the capacitor/resistor relationship is almost linear. Therefore, it is suggested that only the capacitor should be changed. Hence, for a doubling of filter frequency input the value of the capacitor should be reduced by half.

SMART I/O User’s Manual

Chapter 4 Digital Modules

4.1.7 Pinouts

Screw Terminal Pinouts

The following shows the pinout/signal relationship for the SM-DIN1 when connected to a particular screw terminal block.

Pin 1

Pin 2

Pin Nr. Signal Description Pin Nr. Signal Description

1 G0EXT GND for channel 0 2 G4EXT GND for channel 4 3 IN0 Input Channel 0 4 IN4 Input Channel 4 5 IN1 Input Channel 1 6 IN5 Input Channel 5 7 G1EXT GND for channel 1 8 G5EXT GND for channel 5

9 IN2 Input Channel 2 10 IN6 Input Channel 6 11 IN3 Input Channel 3 12 IN7 Input Channel 7 13 G23EXT GND for channels 2&3 14 G67EXT GND for channels 6&7

Pin 13

Pin 14

Page 4 - 10

March 12, 1996

Chapter 4 Digital Modules

Connection

Digital Sensors

IN0

Pin 1

SMART I/O User’s Manual

+Vcc (24V)

IN3

IN6

IN2

IN5

IN1

IN4

IN7

Pin 13

Input Circuit

+Vcc (24V)

Gnd (0V)

Pin 2

User/Input Interface

G0EXT

G4EXT

IN0

G0EXT

G1EXT

G5EXT

System Interface

8V2

LL4448

5K1

G23EXT

G67EXT

Pin 14

Gnd (0V)

Typ: Common GND

SMART I/O User’s Manual

4.1.8 ‘C’ Programming

4.1.8.1 SM-DIN1 Library

The SM-DIN1 library of functions smartio.l provide a convenient way of accessing the SM-DIN1 module.

• All functions are written in ANSI C;

• Prototypes are to be found in the file din1lib.h.

Hardware Requirements

• SMART I/O Base Module or Base Module and Extension unit;

• SM-DIN1 Module.

Software Requirements

Chapter 4 Digital Modules

The compiler from one of the following:

• Ultra C Version 1.1.2 or higher;

• FasTrak 2.0.2 or higher.

The leftmost SM-Module has number 0 assigned to it a far as programming is concerned although physically this is slot 1!

Before a library function can be used, the function SMDIN1Init must first be called. This allocates the requested resources. Furthermore, this function needs to be called for each SM-DIN1 Module called within the task. Upon completion of the application, the function SMDIN1DeInit needs to be called for each SM-DIN1 Module that has been initialized.

In order to illustrate the use of the SM-DIN1 library, an application example called demodin1.c can be found in the SMART I/O application directory (normally found in /<device>/APPLIC/SMART/CMDS).

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March 12, 1996

Pepper Computer RS232, RS485 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

General Information

Weights & Measures

1.1 Product Overview

1.2 Ordering Information

1.3 Product Information

1.4 Installation

1.4.1 Overview

1.4.2 SMART I/O Module Installation

1.4.3 RJ45 Telephone Connector Installation

1.4.4 Screw Terminal Block Installation

1.4.5 Battery Installation

1.5 ISaGRAF-Installation

1.5.1 Before Installing

1.5.2 Installation of the ISaGRAF for Windows Workbench

1.5.3 Installation of PEP Library Functions

1.5.4 Demo Application

Table of Contents

2. SMART-BASE

2.1 Specifications

2.2 Board Overview

2.3 Functional Description

2.4 Configuration

2.4.1 Jumper J1: Boot Selection (Pin Connector)

2.4.2 Jumper J6: LED Function (Pin Connector)

2.5 Pinouts

2.5.1 SMART Module Piggyback Connectors

2.5.2 Screw Terminal Pinouts

2.5.3 Timer I/O Screw Terminal (SCR1)

2.5.4 Supply Screw Terminals (SCR2)

2.5.5 RS232 Telephone Connector (BU1)

2.5.7 SPI Connector (ST7)

2.6 ‘C’ Programming

2.6.1 SMART-BASE Library

2.6.2 SMTselIn

2.6.3 SMTsettout

2.6.4 SMTpre

2.6.5 SMTstasto

2.6.6 SMTrd

2.6.7 SMTtin

2.6.8 SMTstat

2.6.9 SMTout

2.6.10 SMLed

2.6.11 SMwdon

2.6.12 SMwdtrig

2.6.13 SMwdoff

2.7 ISaGRAF Programming

2.7.1 The ISaGRAF Board Parameters

2.7.2 The ISaGRAF Operate Calls

2.8 Flash Utility

Table Of Contents

3. SMART-EXT

3.1 Specifications

3.2 Board Overview

3.3 Functional Description

3.4 Pinouts

3.4.1 SMART Module Piggyback Connectors

3.4.2 Parallel I/O Screw Terminals (SCRA and SCRB)

3.4.3 SPI Connectors (ST5 and BU1)

4. Digital Modules

4.1 SM-DIN1

4.1.1 Introduction

4.1.2 Specifications

4.1.3 Front Panel Layout

4.1.4 Board Overview

4.1.5 Functional Description

4.1.6 Configuration

4.1.7 Pinouts

4.1.8 ‘C’ Programming

4.1.8.1 SM-DIN1 Library