I have tested three ASB modules and they have all auto-configured themselves fine in my 4 slot rack as 1/2 rack with words 100-103 but both of my ASC modules have returned an auto-config of 1/4 rack and have only words 100 and 101? Any idea why this is happening?
Not sure - what processor are you using? There are multiple variables in this. The ASC had many drawbacks compared to the ASB. You are better off using the ASB and re-cycle the ASC - IMO
Hello Luis: Sorry I do not have any videos on the 1771-SDN card setup. I know that you need the communication card to hook directly to the SDN and the SDN configuration software. I will have to dig deep to try and find it all on my old XP Laptop. Not sure that it will run on anything newer than 32 bit Win7. You can also check with www.plcs.net/ and ask them. They may have a course on it or will put up the answer for you. Thank you for your question. Bruce B
@@abplctestbench759 Thanks for the answer, friend. Can autoconfigure be done in online mode? is there any risk? add a Chassis RIO in PLC5, it is a network of 8 Chassises, manually add the Chassis, the Active Led blinks and in the IO Configuration I have an F, I cannot delete it. do you have any suggestions? grateful.
@@luismucha4365 The processor has to be in program mode to add a chassis online. You could also add it offline and then download the updated program to the processor. There is no way to add remote I/O to a system when it is running. If it is blinking green after you have done the auto configuration then it is just waiting for the processor to go into program mode and then update the RIO files. The ASB speed and the processor RIO speed must be the same baud rate. The wiring must be done correctly and hooked up and the end of line resistor must be the correct size and in the correct place on the last physical chassis.
Hello. Thank you for this video. I have question related to this product so probably you could help. On a site we have PLC5 controller on main rack. From I/O port of this controller blue hose go to terminal block where we have also connected another two blue hoses in parallel. On each end have 1771-ASB scanners. So it is kinda star topology. But 150 Ohms resistor is installed ONLY on one 1771-Asb side. Controller and another scanner doesn't have resistors. You mentioned that resistors must be installed on each end. On one remote I/O rack with scanner without resistor we have RB module with wireless communication. Periodically we have lost communication. After power OFF and power ON the power supply for that rack the communication come back. Usually it blocks transmission and not a receiving side
Hi Ivan: Star wiring can give spurious errors. Think of the wiring for the remote I/O as being the same configuration as a fire alarm system. If you don't have a single line with resistors at either end it does not work right. It may work most of the time but can't be guaranteed. I would suggest you clean up the wiring and make sure that it is correctly done to AB specs. The communication is actually a current loop. It will take abuse, but if done wrong don't expect it to work right. Hope this helps.
@@abplctestbench759 Thank you. Is the remote I/O same resistor requirements as DH+ network with its nodes. In my understanding they are different but using same cable.
You mentioned that communication is the flow of current. Let me ask you this. In case if we have some voltage drop on blue hose connections is that possible that the data can be transmitted by scaner to digital modules in slots 2,3,4.... and cannot reach two last slots 14 and 15 ( where are RB and Basic modules)?
@@ivanblazhenko99 From the 1771-ASB manual - which you should be able to find online or maybe sitting in a box or on a shelf in your plant. ------------------------------------- If this is the last remote I/O adapter on the link, you must use a terminating resistor to terminate both ends of the remote I/O link (scanner end and last adapter end). Connect the terminator across terminals 1 (blue) and 3 (clear). The size of the terminator is determined by the system configuration. Older configurations use a 150 ohm resistor at both ends. With newer products that can support it, you can use an 82 ohm terminator at both ends. The 82 ohm terminators provide “extended node” capability which allows you to have up to 32 physical devices on the RIO link. (The number of logical racks capable of being addressed by the scanner is not affected.) This allows 1/4, 1/2 and 3/4 racks, Dataliners, Redipanels and Panelview devices to be attached to the link. ! ATTENTION: Devices that are operating at 230.4K Baud must have 82 ohm terminators in place for proper operation. ------------------------------ The DH+ is the same configuration. Must be done in a drop link configuration. Not a star. Resistors at either end. I will post the info from the manual shortly.
@@ivanblazhenko99 From the PLC5 processor manual. ------------------ A DH+ link using this communication rate Cannot exceed this cable length 57.6 kbps 3,048 m (10,000 ft) 115.2 kbps 1,524 m (5,000 ft) 230.4 kbps 762 m (2,500 ft) --------------- If you select the baud rate as 230.4 kbps, and you are using the serial port or a PLC-5 co-processor, use channel 2 for better overall system performance. ----------------------- If Your DH+ I/O Link Operates at Use this Resistor Rating 230.4 kbps 82Ω 57.6 kbps or 115.2 kbps 150Ω
keep up the good work excellent videos and hello from australia
Hello John:
Your comment is appreciated.
Thanks from Canada.
Bruce B
I have tested three ASB modules and they have all auto-configured themselves fine in my 4 slot rack as 1/2 rack with words 100-103 but both of my ASC modules have returned an auto-config of 1/4 rack and have only words 100 and 101? Any idea why this is happening?
Not sure - what processor are you using?
There are multiple variables in this.
The ASC had many drawbacks compared to the ASB.
You are better off using the ASB and re-cycle the ASC - IMO
Hello can you provide some informative video of 1747- SN RIO scanner
Great video and presentation.
Do you have any video showing the configuration of a Devicenet 1771-SDN card?
thanks for everything.
Hello Luis:
Sorry I do not have any videos on the 1771-SDN card setup. I know that you need the communication card to hook directly to the SDN and the SDN configuration software.
I will have to dig deep to try and find it all on my old XP Laptop. Not sure that it will run on anything newer than 32 bit Win7.
You can also check with www.plcs.net/ and ask them. They may have a course on it or will put up the answer for you.
Thank you for your question.
Bruce B
@@abplctestbench759 Thanks for the answer, friend.
Can autoconfigure be done in online mode? is there any risk?
add a Chassis RIO in PLC5, it is a network of 8 Chassises, manually add the Chassis, the Active Led blinks and in the IO Configuration I have an F, I cannot delete it.
do you have any suggestions?
grateful.
@@luismucha4365 The processor has to be in program mode to add a chassis online. You could also add it offline and then download the updated program to the processor.
There is no way to add remote I/O to a system when it is running.
If it is blinking green after you have done the auto configuration then it is just waiting for the processor to go into program mode and then update the RIO files.
The ASB speed and the processor RIO speed must be the same baud rate.
The wiring must be done correctly and hooked up and the end of line resistor must be the correct size and in the correct place on the last physical chassis.
@@abplctestbench759 perfect friend
Hi, It is so nice & great topic ..thank you ... Is 1771 ASB RIO capable to communicate siemens controller directly ? without 5 processor .
NO - This is an AB/ Rockwell product that only communicates with AB/ Rockwell PLC's.
@@abplctestbench759 thank you.
Hello. Thank you for this video.
I have question related to this product so probably you could help.
On a site we have PLC5 controller on main rack. From I/O port of this controller blue hose go to terminal block where we have also connected another two blue hoses in parallel. On each end have 1771-ASB scanners. So it is kinda star topology. But 150 Ohms resistor is installed ONLY on one 1771-Asb side.
Controller and another scanner doesn't have resistors.
You mentioned that resistors must be installed on each end.
On one remote I/O rack with scanner without resistor we have RB module with wireless communication. Periodically we have lost communication. After power OFF and power ON the power supply for that rack the communication come back.
Usually it blocks transmission and not a receiving side
Hi Ivan: Star wiring can give spurious errors.
Think of the wiring for the remote I/O as being the same configuration as a fire alarm system.
If you don't have a single line with resistors at either end it does not work right.
It may work most of the time but can't be guaranteed.
I would suggest you clean up the wiring and make sure that it is correctly done to AB specs. The communication is actually a current loop. It will take abuse, but if done wrong don't expect it to work right.
Hope this helps.
@@abplctestbench759 Thank you. Is the remote I/O same resistor requirements as DH+ network with its nodes.
In my understanding they are different but using same cable.
You mentioned that communication is the flow of current. Let me ask you this. In case if we have some voltage drop on blue hose connections is that possible that the data can be transmitted by scaner to digital modules in slots 2,3,4.... and cannot reach two last slots 14 and 15 ( where are RB and Basic modules)?
@@ivanblazhenko99 From the 1771-ASB manual - which you should be able to find online or maybe sitting in a box or on a shelf in your plant.
-------------------------------------
If this is the last remote I/O adapter on the link, you must use a
terminating resistor to terminate both ends of the remote I/O link
(scanner end and last adapter end). Connect the terminator across
terminals 1 (blue) and 3 (clear).
The size of the terminator is determined by the system configuration.
Older configurations use a 150 ohm resistor at both ends. With newer
products that can support it, you can use an 82 ohm terminator at
both ends. The 82 ohm terminators provide “extended node”
capability which allows you to have up to 32 physical devices on the
RIO link. (The number of logical racks capable of being addressed
by the scanner is not affected.) This allows 1/4, 1/2 and 3/4 racks,
Dataliners, Redipanels and Panelview devices to be attached to the
link.
!
ATTENTION: Devices that are operating at 230.4K
Baud must have 82 ohm terminators in place for proper
operation.
------------------------------
The DH+ is the same configuration. Must be done in a drop link configuration. Not a star. Resistors at either end.
I will post the info from the manual shortly.
@@ivanblazhenko99
From the PLC5 processor manual.
------------------
A DH+ link using this
communication rate
Cannot exceed this
cable length
57.6 kbps 3,048 m (10,000 ft)
115.2 kbps 1,524 m (5,000 ft)
230.4 kbps 762 m (2,500 ft)
---------------
If you select the baud rate as 230.4 kbps, and you are using
the serial port or a PLC-5 co-processor, use channel 2 for
better overall system performance.
-----------------------
If Your DH+ I/O Link Operates at Use this Resistor
Rating
230.4 kbps 82Ω
57.6 kbps or 115.2 kbps 150Ω
Thankyou
You are welcome