Solartron Digital Input/Output Module Manual

Digital Input/
Output Module

solar

tron

Manual No. 502237

Issue 2

DIOM 502237_Issue 2.qxd 20/07/2005 15:38 Page fcov1

Part No. 502237 Issue 2

Information in this document is subject to change without notice. Companies, names and data used

in examples herein are fictitious unless noted otherwise. No part of this document may be

reproduced or transmitted in any form or by means, electronic or mechanical, for any

purpose, without the express permission of Solartron Metrology.

© 2000 Solartron Group Ltd. All rights reserved.

Orbit is a trademark of Solartron Group Ltd

All other brand names, product names or trademarks belong to their respective holders.

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1.0 Introduction

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . .3

THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . .4

WARNINGS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.0 Detail Specification

DIOM GENERAL SPECIFICATION . . . . . . . . . . . .5

EMC Compliance . . . . . . . . . . . . . . . . . . . . . . .6

IP Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

PIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . .7

I/O Port: Input Specification . . . . . . . . . . . . . . .9

I/O Port: Output Specification - Driver

Configuration External Supply . . . . . . . . . . . . .10

0 V connections: Pins 9 to 12 DIOM

connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

I/O Port: Output Specification - Driver

Configuration Using Orbit Supply . . . . . . . . . .12

I/O Port: Output Specification - Logic

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.0 Communication with the DIOM

ORBIT COMMANDS . . . . . . . . . . . . . . . . . . . . . . .14

4.0 Application - Hardware

CONNECTING TO THE DIOM. . . . . . . . . . . . . . .20

EMC IMMUNITY ENHANCEMENT

SUGGESTIONS . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.0 Application - Software

INPUT / OUTPUT CONTROL . . . . . . . . . . . . . . . .22

MULTIPLE READINGS . . . . . . . . . . . . . . . . . . . . .24

Return of Goods

Index

1

Manual No. 502237 Issue 2

Index

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Introduction

The Digital Input / Output Module (DIOM) enables the

'Orbit Network' to interface with the outside world. The

module provides 8 general-purpose input / output lines,

housed in the standard Orbit Module case. Each line

can be individually configured to Input or Output.

Input / Output line are connected via a 0.5-meter flying

lead and a 15-way D-type connector.

This Manual

The manual describes the technical specification of the

product enabling you to connect to the DIOM. All

communication with the DIOM, including configuration

of the unit, is carried out using the 'Orbit Command'

language, which is described in detail in this manual.

1.0: Introduction

1.0: Introduction

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Safety Summary

WARNING statements identify conditions or practices

that could result in personal injury or loss of life.

CAUTION statements identify conditions or practices

that could result in damage to the equipment or other

property.

Symbols in this document:-

This symbol indicates where applicable

cautionary or other information is to be found.

WARNINGS:

Do not operate in an explosive atmosphere

To avoid explosion, do not operate this equipment in an

explosive atmosphere.

This equipment is not intended for use in safety critical

applications.

Do not exceed rated voltages

This equipment is designed to interface to a maximum

of 30 V dc.

1.0: Introduction

1.0: Introduction

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CAUTION:

Failure to observe the limits in this specification

could result in damage to this equipment and

any equipment connected to it.

NOTES:

This equipment contains no user serviceable parts.

This equipment must be returned to a Solartron Dealer

for all service and repair.

Low Voltage

This equipment operates at below the SELV and is

therefore outside the scope of the Low Voltage

Directive.

DIOM General Specification

Module Temperature:

-20°C to + 70°C (-4°F to 158°F)

except where specified.

Module Supply (from Orbit Network):

4.75 V - 5.25V @ 60 mA max. (all outputs on)

Does not include current sourced from +5V Orbit

supply (pin 13).

CAUTION:

This is the supply for the Module only. An

external supply is required for driving loads.

1.0: Introduction

1.0: Introduction

4

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EMC Compliance

BS EN 50081-1: 1992 Generic emission standard Part 1.

Residential, commercial and light Industry.

BS EN 50081-2: 1995 Generic immunity standard Part 2.

Industry environment.

The above compliance statements is for representative

system. Layout of cables, supply sources and electrical

environment may affect performance.

IP Rating

IP53 when mounted in an upright position.

IP50 when mounted in any position (other than

upright.).

1.0: Introduction

1.0: Introduction

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Pin Connections

Inputs / Outputs:

8 lines used as either input or outputs, connected via a

short (0.5 m) flying lead and 15-way D-type connector.

Pin Number Pin Label Pin Number Pin Label

pin 1 I/O bit 0 pin 8 I/O bit 7

pin 2 I/O bit 1 pin 9 0 V

pin 3 I/O bit 2 pin 10 0 V

pin 4 I/O bit 3 pin 11 0 V

pin 5 I/O bit 4 pin 12 0 V

pin 6 I/O bit 5 pin 13 +5 V

pin 7 I/O bit 6 pin 14 & 15 NC

DIOM 15-way D-type pin connections

2.0: Detail Specification

2.0: Detail Specification

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I/O Port: Input Specification

• 4K7 pull up to Orbit +5 V

• High-level input voltage ≥ +3.15 V

• Low-level input voltage ≤ +1.35 V

Absolute Maximum Ratings

V

IH(MAX)

+30 V

V

IL(MIN)

-0.5 V

I

IL

≤ 1mA (source)

Note: Output driver MUST be set high (logic 1) using

the OrbitPreset command before using the port

as an input.

2.0: Detail Specification

2.0: Detail Specification

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I/O Port: Output Specification - Driver
Configuration External Supply

Typical specification, assuming 8 outputs used at 100%

duty cycle.

• Open drain

• Low-level output voltage ≤ +0.2 V

Absolute Maximum Ratings - Each Output

V

OH(MAX)

+30 V

V

OL(MIN)

-0.5 V

I

OL

≤ 50 mA (sink)

2.0: Detail Specification

2.0: Detail Specification

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0 V connections: Pins 9 to 12 DIOM
connector

Return current for load connected to an external

supply must be connected to a local 0V (Load

0V). This prevents the load 0V current returning

through pins 9 - 12. on to the orbit network.

• Maximum difference between Orbit 0 V and

Load 0 V < 0.5 V.

2.0: Detail Specification

2.0: Detail Specification

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I/O Port: Output Specification - Driver
Configuration Using Orbit Supply

+5 V Orbit Supply (pin 13 DIOM connector):

Maximum 50mA total current is available from

the Orbit supply via the DIOM. This can be used

for external loads such as active switches,

indicators and sensing devices.

• Open drain

• Low-level output voltage ≤ +0.2 V

Absolute Maximum -Total

I

Orbit(MAX)

≤ 50mA (source total)

2.0: Detail Specification

2.0: Detail Specification

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I/O Port: Output Specification - Logic
Configuration

(for driving typical 5V logic inputs).

• High-level voltage VH - 4K7 internal pull up to Orbit +5 V

• Low - level voltage VL ≤ +0.2 V (50mA max sink)

2.0: Detail Specification

2.0: Detail Specification

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Orbit Commands

The following Orbit commands allow you to communicate with the DIOM. (Also refer to the Orbit Network Measurement

System manual). When using the RS232 Interface Module please refer to the RS232 Interface Module manual.

Orbit Command OrbitRst

Description: reset all Orbit Modules.

Type: broadcast

Parameters: card, channel

Will reset ALL the Orbit Modules on a network at the same time. To set the Orbit Modules to the required Baud rate this

command MUST be sent after the network is powered up and before any other command. Allow at least 0.5 second for

completion of the command.

3.0: Communication with the DIOM

3.0 Communication with the DIOM

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Orbit Command OrbitSetaddr

Description: set Orbit Module address.

Type: addressed

Parameters: card, channel, address, identity, option

Each Orbit Module is given a unique 10 byte identity (ID) during manufacture. When used on a network it is more

efficient to use a shorter temporary ADDRESS stored in the Orbit Module memory; this is a number between 1 and 31.

This command is used to set the temporary address.

3.0: Communication with the DIOM

3.0 Communication with the DIOM

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Orbit Command OrbitRead1

Description: returns the state of the DIOM inputs.

Type: addressed

Parameters: card, channel, address, reading

The 8 least significant bits of the returned 16-bit number show the state of the input pins. Each pin must first be set

high (via OrbitPreset) if it is to be used as an input. A low state on the input pin will be returned as a logic low (0), a

high state on the input pin will be returned as a logic high (1).

3.0: Communication with the DIOM

3.0 Communication with the DIOM

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Orbit Command OrbitPreset

Description: sets the DIOM outputs.

Type: addressed

Parameters: card, channel, address, preset

The 8 least significant bits of the 32-bit number are used to set the output pins. A logic low (0) will turn the output driver

on: the output pin will be set low (0V). A logic high (1) bit will turn the output driver off: the pin will be pulled up to Orbit

+5V via 4K7 and series diode or external load if connected. The pin must be set high if it is to be used as an input.

3.0: Communication with the DIOM

3.0 Communication with the DIOM

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Orbit Command OrbitGetinfo

Description: returns information on the Module / Probe

Type: addressed

Parameters: card, channel, address, module type, hardware type, resolution, module info

Will return information about the type of module and / or probe. Using the OrbitIdentify command may return

additional information.

3.0: Communication with the DIOM

3.0 Communication with the DIOM

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Orbit Command OrbitClr

Description: clear addressed Orbit Module.

Type: addressed

Parameters: card, channel, address

Performs software reset on a particular Orbit Module. The Orbit Module will then need to be re-addressed. Allow at

least 0.5 second for completion of the command.

3.0: Communication with the DIOM

3.0 Communication with the DIOM

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Connecting to the DIOM.

Example of wiring connections of the DIOM.

Inductive loads must be suppressed.

(i.e. protection diode.)

0V load must be connected to local 0V, to

minimise load return current through DIOM

and Orbit.

4.0: Application - Hardware

4.0 Application - Hardware

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4.0: Application - Hardware

4.0 Application - Hardware

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Manual No. 502237 Issue 2

EMC Immunity Enhancement Suggestions

If the DIOM is used in applications where there may be

higher than normal interference sources (i.e. near heavy

industrial machinery). Adopting some or all of the

following measures may enhance immunity

performance.

• Shielded cable (Braided) 360° screen to shell.

• Ferrite sleeves.

• Short cables.

• Route away from cables (the interference source).

• Where possible cross cables at right angles to

reduce coupling.

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Input / Output Control

DIOM Input / Output ports are read by OrbitRead1 and controlled by OrbitPreset. (Refer to Communications with

DIOM).

In the example below, Port 0 (bit 0) is driving a load and Port 1 (bit 1) is an input to a switch (All other Ports are not

used in this example).

All example input states are read back correctly except the last where Port 0 (bit 0) output driver is switched ON

causing a false input state to be read by the Port 0 input buffer.

Input and output ports are internally connected. For each I/O line, the output driver must be OFF (bit=1) before it can

be used as an input.

Note however that this last condition is an example of the DIOM monitoring its own output state.

5.0: Application - Software

5.0 Application - Software

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5.0: Application - Software

5.0 Application - Software

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Multiple readings

In some applications multiple readings of OrbitRead1 may be required i.e.:

External Electrical interference.

Switch bounce.

Noisy Supplies.

Mechanical vibration.

If a port is being used to read a switch condition for example, a single OrbitRead1 may have missed the event or may

have seen a noise spike in the place of the event.

A possible solution is to issue multiple OrbitRead1 commands to confirm the input status.

5.0: Application - Software

5.0 Application - Software

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Return of Goods

Return of Goods

23

Manual No. 502237 Issue 2

Products returned for repair should be shipped prepaid to Solartron Metrology. The shipping container should be

marked: "Return for Repair"

Model ..... Type .....

The following information should accompany the product(s):

1. A purchase order, unless the product is being returned under warranty.

2. Application: type of environment and length of time in service of the product(s).

3. Description: the faulty operation of the product(s) and the circumstances of the failure.

4. Name and telephone number of the person to contact if there are questions about the returned product(s).

5. Statement as to whether warranty or non-warranty service is required.

6. Complete shipping instructions for the return of the product(s).

7. Original purchase order number and date of purchase.

Adherence to these procedures will expedite handling of the returned product(s) and will prevent unnecessary

additional charges for inspection and testing to determine the condition of the product(s).

Solartron reserves the right to repair or replace goods returned under warranty.

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France

Solartron Metrology,
Z.I. du Bois Chaland
2, rue du Bois Chaland
CE 5611 LISSES
91056 EVRY CEDEX
Tel: [phone]
Fax: [phone]

Germany

Solartron Metrology,
Wittekindstrasse 12
45470
Mülheim/Ruhr.

Tel: [phone]
Fax: [phone]

United Kingdom

Solartron Metrology,
Steyning Way,
Bognor Regis,
West Sussex. PO22 9ST

Tel: [phone]
Fax: [phone]

U.S.A.

Solartron Metrology,
10770 Hanover Road,
Forestville, NY 14062

Tel: [phone]
Fax: [phone]

Solartron pursues a policy of continuous development. The specifications in this document may therefore be changed without notice Solartron Metrology. A Roxboro Group Company

solar

tron

OFFICES WORLDWIDE - Addresses for Repairs

Email: [e-mail]
Web: www.solartronmetrology.com

SOLARTRON METROLOGY OFFICES

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