MSG read from PLC-5 to SLC 5/05

jazd · Feb 28, 2013

I'm trying to MSG from a SLC 5/05 to read a single INT from a PLC-5. I can't for the life of me get it to work!

SLC Ch1 Config

RsLinx showing the SLC and PLC-5 that I am trying to communicate between
as you can see I am going through a DHRIO.

DHRIO routing table

MSG attempt 1, multihop

MSG attempt 2

Anyone have any ideas? What is the correct was to do this?

Bit_Bucket_07 · Feb 28, 2013

Try changing your Communications Command from "PLC5 Read" to "PLC5 Typed Read".

aspay · Feb 28, 2013

I'm sorry in advance, I wanna know how to translate ladder diagram from PLC 5 (.TSP) to RSLogix 5000 (.ADD) without losing any data. does it need specific step?

jazd · Feb 28, 2013

Bit_Bucket_07 said:
Try changing your Communications Command from "PLC5 Read" to "PLC5 Typed Read".

Thanks for the suggestion, unfortunatly there is no option for a "typed" read. The options are 500CPU, 485CIF, PLC5 and Modbus.

I power cycled the SLC and I am now getting the same "connection broken" error on the remote (non multi-hop) MSG.

Can someone say which is the correct way of setting this up? If I know i have the configuration right I can start looking at other things.. such as firmware incompatibilities.

Ken Roach · Feb 28, 2013

The non-multi-hop definitely won't work, since that uses the old CSPv4 protocol that the ControlLogix chassis modules don't support.

This is a tricky one.

If anything, I think that the SLC-5/05 should be set for "DHRIO Link 13", because the Ethernet nework is considered to be Link 13.

DHRIO Link 8 is that remote DH+ network that contains the PLC-5/40B.

I'm not really sure the Link ID's matter in this case, since we're not using DH+ Remote Messaging.

Bit_Bucket_07 · Mar 1, 2013

jazd said:
Thanks for the suggestion, unfortunatly there is no option for a "typed" read. The options are 500CPU, 485CIF, PLC5 and Modbus.

I power cycled the SLC and I am now getting the same "connection broken" error on the remote (non multi-hop) MSG.

Can someone say which is the correct way of setting this up? If I know i have the configuration right I can start looking at other things.. such as firmware incompatibilities.

Sorry for the bad info. I was at home (as I am now) and had no programming SW on my computer when I posted that. I just recalled a problem that I had encountered years ago messaging between a 5 & 500. I don't recall whether I was executing my MSG command in the SLC500 or the PLC5. I do recall that I couldn't get it to work without using the Typed Read command.

jazd · Mar 1, 2013

Ken Roach said:
The non-multi-hop definitely won't work, since that uses the old CSPv4 protocol that the ControlLogix chassis modules don't support.

This is a tricky one.

If anything, I think that the SLC-5/05 should be set for "DHRIO Link 13", because the Ethernet nework is considered to be Link 13.

DHRIO Link 8 is that remote DH+ network that contains the PLC-5/40B.

I'm not really sure the Link ID's matter in this case, since we're not using DH+ Remote Messaging.

You are dead right.. Turns out the multi hop method worked perfectly after I had power cycled the PLC. Talk about uninformative error messages.. I think it must have been the connection limit problem. I would have tried power cycling sooner but the PLC was 2 hrs drive away

Bit_Bucket_07 said:
Sorry for the bad info. I was at home (as I am now) and had no programming SW on my computer when I posted that. I just recalled a problem that I had encountered years ago messaging between a 5 & 500. I don't recall whether I was executing my MSG command in the SLC500 or the PLC5. I do recall that I couldn't get it to work without using the Typed Read command.

No worries.

Thanks to both of you.

MSG read from PLC-5 to SLC 5/05

jazd

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aspay

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Ken Roach

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Bit_Bucket_07

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