Strugglin_On
Member
I have been asked to add new hardware to an old system. The PLC is a 5/04 SLC. In local rack, slot 25, is a 1747-SN connected to a 1747-ASB in a 10-Slot remote rack.
The RIO rack has 2 32-way DI's, 2 16-way DO's and 2 NO4I's. There is a "spare" slot after each of the AI cards.
The 1747-ASB is setup in Discrete mode and 1/2 slot configuration.
Those of you who are familiar with this setup (unlike me) will know that the slots after AI cards are not spare as the Logical Slot is used for the AI address.
I think, from what I can workout from the manual, that I can free up the slots by using Block Transfer.
From reading various post I think I have managed to setup the Block Transfer but like a lot of people I am not exactly sure about the Rack/Slot/Group addressing.
I am hoping that someone can give me a thumbs up or point me in the right direction if I am wrong before I take it to site.
I have setup 2 BTR’s and a BTW for a new 8-way AO that I am adding.
There RIO is setup as below
ASB,
32DI, - Rack 0 Group 0/1
32DI, - Rack 0 Group 2/3
16DO, - Rack 0 Group 4/5
16DO, - Rack 0 Group 6/7
4AI, - Rack 1 Group 0/1
(New 32 DI), - Rack 1 Group 2/3
4AI, - - Rack 1 Group 4/5
(New 8AO), - Rack 1 Group 6/7
(New 16DO) - - Rack 2 Group 0/1
I have setup the transfer block
First BTR Rack 1, Group 0, M1:25.100, Request 4 Words
Second BTR Rack 1, Group 4, M1:25.200, Request 4 Words
BTW Rack 1, Group 6, M1:25.300, Request 8 Words
I have configured the 1747-SN – Full Rack, Full Rack, ¼ Rack.
I will change the DIP switches when I get to site.
I would be grateful if someone could give my settings a once over.
Am I correct in my assumption that the digital cards continue to be treated as Discrete IO when in Block Transfer mode.
Cheers.
The RIO rack has 2 32-way DI's, 2 16-way DO's and 2 NO4I's. There is a "spare" slot after each of the AI cards.
The 1747-ASB is setup in Discrete mode and 1/2 slot configuration.
Those of you who are familiar with this setup (unlike me) will know that the slots after AI cards are not spare as the Logical Slot is used for the AI address.
I think, from what I can workout from the manual, that I can free up the slots by using Block Transfer.
From reading various post I think I have managed to setup the Block Transfer but like a lot of people I am not exactly sure about the Rack/Slot/Group addressing.
I am hoping that someone can give me a thumbs up or point me in the right direction if I am wrong before I take it to site.
I have setup 2 BTR’s and a BTW for a new 8-way AO that I am adding.
There RIO is setup as below
ASB,
32DI, - Rack 0 Group 0/1
32DI, - Rack 0 Group 2/3
16DO, - Rack 0 Group 4/5
16DO, - Rack 0 Group 6/7
4AI, - Rack 1 Group 0/1
(New 32 DI), - Rack 1 Group 2/3
4AI, - - Rack 1 Group 4/5
(New 8AO), - Rack 1 Group 6/7
(New 16DO) - - Rack 2 Group 0/1
I have setup the transfer block
First BTR Rack 1, Group 0, M1:25.100, Request 4 Words
Second BTR Rack 1, Group 4, M1:25.200, Request 4 Words
BTW Rack 1, Group 6, M1:25.300, Request 8 Words
I have configured the 1747-SN – Full Rack, Full Rack, ¼ Rack.
I will change the DIP switches when I get to site.
I would be grateful if someone could give my settings a once over.
Am I correct in my assumption that the digital cards continue to be treated as Discrete IO when in Block Transfer mode.
Cheers.