![]() ![]() ![]() ![]() ![]() ![]() |
||
![]() |
||
![]() ![]() ![]() ![]() This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc. |
||
![]()
|
New Here? Please read this important info!!!
![]() |
#1 |
Member
![]() ![]() Join Date: Jun 2015
Location: Belo Horizonte
Posts: 34
|
Micrologix 1400 RTU rs485 CH0
Hi friends,
I know that this question already was talked but, in my search, this dont be clear. I have to connect Micrologix 1400 to RS485 modbus rtu network. 1 - I know that the 1763-NC01 is the most safe option, but I dont have and wont buy it now. 2 - Can I construct my own cable just pin-out, without resistors? Wich is the reasons that it can damage the equips? 3 - The cable has 15 cm max, and I can use low baud rate...... 4 - If is extremaly nescessary to use a terminator resistors, what is its impedance and is just solder between a-b terminals? 5 - About this document posted here: 1763-NC01 Cable Connections: http://www.plctalk.com/qanda/attachm...4&d=1367597269 the image is confuse. For I understand: the pin 8A of conector drawed at the document, is the top or bottom 6-7-8 pin looking in front of PLC mini din port? Thanks very much. |
![]() |
![]() |
#2 | ||||
Lifetime Supporting Member
|
Quote:
Quote:
Quote:
Quote:
__________________
It's not all the variables I am most concerned with, it's the undiscovered constants. |
||||
![]() |
![]() |
#3 |
Member
![]() ![]() Join Date: Jun 2015
Location: Belo Horizonte
Posts: 34
|
Thanks OkiePC,
how do I make this welding? Just one 120 ohm resistor between a-b terminals? Should I do welding this at the tip of my conector? This can be exposed? The resistor is a normally resistor? Or a especial resistor??? Thanks |
![]() |
![]() |
Bookmarks |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Modbus RTU connection from a Micrologix 1400 to Accuvim iiR-D | sophickj | LIVE PLC Questions And Answers | 3 | November 8th, 2015 01:28 AM |
Micrologix 1400: AWT instruction is not working in CH0 | asteroide | LIVE PLC Questions And Answers | 2 | March 3rd, 2015 08:29 PM |
Micrologix 1400 Modbus RTU RS485 | Raul_Robins | LIVE PLC Questions And Answers | 3 | January 2nd, 2015 07:28 PM |
Micrologix 1400 to PVC600 Communication by RS485 port problem | nilesh_1106 | LIVE PLC Questions And Answers | 2 | November 29th, 2013 03:18 PM |
MicroLogix 1400, ethernet/ip over RS485 | rQx | LIVE PLC Questions And Answers | 13 | October 22nd, 2013 01:54 AM |