Hi,
Just wanna pick some brains here.
Problem:
PLC1: S7-315 with CP343
PLC2: S7-414 with CP443
PLC1 contains 12 DB's that needs to be tranferred to PLC2.
Additional info:
Sizes vary from 42 to 352 bytes with a total of 980 bytes.
PLC's are not in same project.
I have control over the S7-414, not the other one.
Step7 V5.5 is being used.
Question:
Need best solution to transfer data from S7-300 to S7-400 at 1-2 sec interval.
Option 1:
Move everything to a single, large DB.
Transfer said DB with AG_SEND/AG_RECV.
Split the data in the S7-400.(this is still being debated )
Seems easy enough, but the documentation says something about the length being limited to 240 bytes for the S7-400. Or should I just use AG_LRECV on the S7-400?
Option 2:
Use FB14/15 GET/PUT to transfer each DB individually.
Largest DB still fits in the 400byte FB14 limitation.
Or is there another way?
Just wanna pick some brains here.
Problem:
PLC1: S7-315 with CP343
PLC2: S7-414 with CP443
PLC1 contains 12 DB's that needs to be tranferred to PLC2.
Additional info:
Sizes vary from 42 to 352 bytes with a total of 980 bytes.
PLC's are not in same project.
I have control over the S7-414, not the other one.
Step7 V5.5 is being used.
Question:
Need best solution to transfer data from S7-300 to S7-400 at 1-2 sec interval.
Option 1:
Move everything to a single, large DB.
Transfer said DB with AG_SEND/AG_RECV.
Split the data in the S7-400.(this is still being debated )
Seems easy enough, but the documentation says something about the length being limited to 240 bytes for the S7-400. Or should I just use AG_LRECV on the S7-400?
Option 2:
Use FB14/15 GET/PUT to transfer each DB individually.
Largest DB still fits in the 400byte FB14 limitation.
Or is there another way?