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Solartron Digital Input/Output Module, Руководство пользователя

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Multiple readings

In some applications multiple readings of Orbit

Read1

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 Orbit

Read1

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 Orbit

Read1

commands to confirm the input status.

5.0: 

Application - Software

5.0 Application - Software

22

Manual No. 502237 Issue 2

DIOM 502237_Issue 2.qxd  20/07/2005  15:38  Page 22

Содержание Digital Input/Output Module

Страница 1: ...Digital Input Output Module solartron Manual No 502237 Issue 2 DIOM 502237_Issue 2 qxd 20 07 2005 15 38 Page fcov1...

Страница 2: ...s 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 r...

Страница 3: ...onnections 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...

Страница 4: ...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 DIO...

Страница 5: ...ndicates 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...

Страница 6: ...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 N...

Страница 7: ...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 po...

Страница 8: ...er 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 1...

Страница 9: ...e 1 35 V Absolute Maximum Ratings VIH MAX 30 V VIL MIN 0 5 V IIL 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 Speci...

Страница 10: ...assuming 8 outputs used at 100 duty cycle Open drain Low level output voltage 0 2 V Absolute Maximum Ratings Each Output VOH MAX 30 V VOL MIN 0 5 V IOL 50 mA sink 2 0 Detail Specification 2 0 Detail...

Страница 11: ...t 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 Specificat...

Страница 12: ...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 IOrbit M...

Страница 13: ...riving 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 11 Manual No 502237 Is...

Страница 14: ...n 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...

Страница 15: ...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...

Страница 16: ...er 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 i...

Страница 17: ...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...

Страница 18: ...ess 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 w...

Страница 19: ...ress 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...

Страница 20: ...tive 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 18 Man...

Страница 21: ...han 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 s...

Страница 22: ...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 eac...

Страница 23: ...5 0 Application Software 5 0 Application Software 21 Manual No 502237 Issue 2 DIOM 502237_Issue 2 qxd 20 07 2005 15 38 Page 21...

Страница 24: ...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 multip...

Страница 25: ...ct 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 se...

Страница 26: ...PO22 9ST Tel 44 0 1243 833333 Fax 44 0 1243 833332 U S A Solartron Metrology 10770 Hanover Road Forestville NY 14062 Tel 1 716 965 4100 Fax 1 716 965 4144 Solartron pursues a policy of continuous dev...

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