[?]: how to see ladder diagram through ethernet ?

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magid1010
Posts: 12
Joined: Thu Jan 10, 2008 10:46 am
Location: Egypt

[?]: how to see ladder diagram through ethernet ?

Post by magid1010 » Fri Feb 08, 2008 9:12 am

please if any one help me to see ladder diagram for plc slc 500 through main plc5 through ethernet .
our system contain plc5 connected to local plc (slc500) by DH+ protocol and plc5 connected to main station through ethernet .
can i see ladder diagram of local plc throuh main station?
thanx for help

D3V17
Posts: 32
Joined: Fri Oct 26, 2007 5:12 am
Location: Asia

RE: how to see ladder diagram through ethernet

Post by D3V17 » Sat Feb 09, 2008 7:11 am

OK, magid1010 you have 2 options, to go online with your PLCs.
1) You must buy a DH+ card for your PC and then hook it up to your network and set that card as an additional node on the DH+ network.
Once this is done you can then use the DH+ driver in RsLinx to 'browse' the DH+ network and see your PLCs connected to your PC.
From here you can use RsLogix 5 and RsLogix 500 to go online with either of your PLCs.
This option will cost you around US$1400 + cost of 'blue hose' cabling, or you can pickup a used PC DH+ card on ebay for a lot less.

2) Your 2nd option is to use your existing ethernet connection and do what they call a pass-through link to your DH+ network.
I've used ethernet in the past to do similar things but its always been through a controllogix PLC.
For you to do this startup your RsLinx and configure an ethernet driver.
I use the EtherNet/IP driver because it browses the network automatically or you can use the Ethernet Devices driver, but here you must manually add the IP address of every PLC on the network.
After this browse your ethernet network using RsLinx via your newly configured driver; here you should 'see' all the PLCs and PCs connected to the ethernet network.
Note: the IP address and the subnet mask of your PC must be set properly for this to work.
RsLinx is quite flaky if it is set to auto-configure and the address is not 'in range'.
For example if your PLC is 198.162.0.10 then you PC should be 198.162.0.12 and you subnet should be identical (255.255.255.0 is common).
After this you should see a small '+' sign in front of your PLC5, keep clicking on the '+' signs to expand your network level until you see your DH+ network and your SLC500 PLC.
Once you 'see' your SLC500, then you can use your RsLogix 500 software to go online with your SLC500 using the communications path that you saw during your browse.
You can usually do 'rswho' + 'go-online 'in RsLogix 500 to find your target PLC to go online with.

Peace.

magid1010
Posts: 12
Joined: Thu Jan 10, 2008 10:46 am
Location: Egypt

thanks but

Post by magid1010 » Tue Feb 19, 2008 7:41 am

thank you very much my dear but i have rslinks ver 2.10.118.0
and configured as shown in pic every main plc 5 conected to slc 500 plc through DH+
but still can't see the slc 500 plc throgh ethernet is that possible when use rslinx ver2.52?
thank again for your help

Image

D3V17
Posts: 32
Joined: Fri Oct 26, 2007 5:12 am
Location: Asia

Post by D3V17 » Thu Feb 21, 2008 5:10 am

I'm sorry the 'pass-through' communications is not working for you. It would appear that you are stuck with option #1. Like I said I've only used this with controlligix PLCs. It appears that PLC5s are maybe too old to support 'pass-through' communications. Maybe some one else can shed some more light on this, as I don't have such a network to test things on.

Best of Luck.

Peace.

magid1010
Posts: 12
Joined: Thu Jan 10, 2008 10:46 am
Location: Egypt

thank u

Post by magid1010 » Thu Feb 21, 2008 5:57 am

thank you very much for help :lol:

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