atomic_robo

Interacting TTL Encoder

6 posts in this topic

Hello, 

I have a NX1P2 controller that would control a DC motor, currently it's open loop. I can control the speed and the direction. I'd like to add an encoder to it. The motor I have is from MidWest motion S27 series and they told me I can use their encoder but the problem is it output TTL

My question is, how do I read this encoder output in the PLC since it's TTL? 

Second, is there a high speed counter in Sysmac Studio for the PLC I have? 

Thank you everyone in advance 

 

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EDIT: Title should be Interfacing TTL Encoder 

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NX-EC0132

http://www.ia.omron.com/products/family/3190/specification.html

RS422 (TTL)

RS422 (TTL) circuits provide a constant 5 V signal level that is not dependent on the supply voltage. Two supply voltage ranges can be selected: From 4.75 to 5.5 VDC (can be used to replace open collector output drivers) or from 8 to 30 VDC. Using differential signals the output fully complies to the RS422 standard.

https://www.posital.com/en/products/communication-interface/incremental/incremental-encoders.php

 

The above information may help you out.

Regards,
Garry

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Thank you so much Garry, I really appreciate the time and effort you took to answer my question

Cheers! 

 

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Omron makes an I/O module that will accept a 5V encoder signal directly, and includes high-speed counter functions.
NX-EC0142
See Omron Manual W524, link below:
https://industrial.omron.us/en/media/NX_Position_Interface_UsersManual_en_201504_W524-E1-05_tcm849-113373.pdf

Note:  You must add an I/O Power Injector module between the PLC and the NX-EC0142,
NX-PF0630
See Omron Manual W523, Link Below:
https://industrial.omron.us/en/media/NX_System_UsersManual_en_201309_W523-E1-03_tcm849-110553.pdf

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