I have been trying to intergrate a Intermec 1470 barcode scanner with a Micrologix 1200. The 1200 has a single comm port with two comm protocols.
1: A default DF1 for communicating with the processor.
2: A user defined which I have set to Ascii.
I have configured Channel 0 and programmed my logic and am able to read and write to channel 0 using Hyperterminal.
I am able to read barcode info to Hyperterminal from my scanner, (using the same settings) however I am unable to read barcode data to channel 0 of the Micrologix.
I found the following on AB's Knowledgebase
"A18204 - Application Useful Knowledgebase Information Option (AUKIO)OC. 19
Adding TTL 0-5 Vdc Input Capability to a Micrologix 1000, M1200, and M1500
Last Modified: 08/13/2002
Previously Released as #12132
General Category: s Programmable Controllers
Product(s): MicroLogix (1761); MicroLogix 1200 (1762); MicroLogix 1500 (1764); MicroLogix 1500 (1764)
Catalog #: 1762L24BWA; 1764LSP
Series / Revision:
Subject (Keyphrases): application
Summary of Technote Information:
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Currently as of the creation of this document no TTL DC input capability is available in the M1000, M1200, or the M1500 family of products. It is obvious that a non A-B interposing device could be used between the TTL device and a standard Micrologix dc input. However, for those wanting to connect a limited number of lower speed TTL devices to a Micrologix DIRECTLY, an application solution is possible for this functionality.
Assistance is available to discuss a specific application and to assist in the developing of this functionality for a charge of $150/hr. Complete turn-key application assistance for developing this functionality for your process can also be quoted."
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The output from the scanner I am using is TTL and I have tried a TTL to RS232 converter using every available setting with no success. ( not even a single character showing up in the buffer)
Any assistance sure appreciated.
1: A default DF1 for communicating with the processor.
2: A user defined which I have set to Ascii.
I have configured Channel 0 and programmed my logic and am able to read and write to channel 0 using Hyperterminal.
I am able to read barcode info to Hyperterminal from my scanner, (using the same settings) however I am unable to read barcode data to channel 0 of the Micrologix.
I found the following on AB's Knowledgebase
"A18204 - Application Useful Knowledgebase Information Option (AUKIO)OC. 19
Adding TTL 0-5 Vdc Input Capability to a Micrologix 1000, M1200, and M1500
Last Modified: 08/13/2002
Previously Released as #12132
General Category: s Programmable Controllers
Product(s): MicroLogix (1761); MicroLogix 1200 (1762); MicroLogix 1500 (1764); MicroLogix 1500 (1764)
Catalog #: 1762L24BWA; 1764LSP
Series / Revision:
Subject (Keyphrases): application
Summary of Technote Information:
--------------------------------------------------------------------------------
Currently as of the creation of this document no TTL DC input capability is available in the M1000, M1200, or the M1500 family of products. It is obvious that a non A-B interposing device could be used between the TTL device and a standard Micrologix dc input. However, for those wanting to connect a limited number of lower speed TTL devices to a Micrologix DIRECTLY, an application solution is possible for this functionality.
Assistance is available to discuss a specific application and to assist in the developing of this functionality for a charge of $150/hr. Complete turn-key application assistance for developing this functionality for your process can also be quoted."
-------------------------------------------------------------------
The output from the scanner I am using is TTL and I have tried a TTL to RS232 converter using every available setting with no success. ( not even a single character showing up in the buffer)
Any assistance sure appreciated.