michael childers
Member
To add a memory module or Eprom do I have to add any
logic to load from memory or does it do it automatic?
memory module type also ?
logic to load from memory or does it do it automatic?
memory module type also ?
SLC 504 Memory question or Eprom
- Thread starter michael childers
- Start date
In the CPU status file you can set one of the three bits:
S:1/10 "Load memory module on memory error"
S:1/11 "Load memory module always"
S:1/12 "Load memory module and RUN"
It is most normal to set S:1/10. The others are more unusual. Setting S:1/11 or S:1/12 will mean the program loses all values by every power cycle, which you dont want in most normal cases.
S:1/10 "Load memory module on memory error"
S:1/11 "Load memory module always"
S:1/12 "Load memory module and RUN"
It is most normal to set S:1/10. The others are more unusual. Setting S:1/11 or S:1/12 will mean the program loses all values by every power cycle, which you dont want in most normal cases.
sthompson
Lifetime Supporting Member + Moderator
As well as Jesper's good advice, you can find the information you need in the Instruction Reference.
/literature.rockwellautomation.com/idc/groups/literature/documents/rm/1747-rm001_-en-p.pdf
Stu....
/literature.rockwellautomation.com/idc/groups/literature/documents/rm/1747-rm001_-en-p.pdf
Stu....
michael childers
Member
OP
I see two types of memory eprom for slc504 listed.does it matter
which one a person uses?
Thanks for answering how to setup in the status file.
which one a person uses?
Thanks for answering how to setup in the status file.
OkiePC
Lifetime Supporting Member
I believe they are aimed at the memory size of the controller. We use the 1747-M13 for all sizes of controllers (series C, 5/03 and above), and the M2 for the few 5/01 and 5/02 controllers we still have around.
It's okay if the memory module has more room than the SLC, but the reverse can lead to problems.
michael childers
Member
OP
Thanks.
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