Rockwell Automation 1757-FFLD Linking Device Configuration Manual - Manual (Page 129)

1 Publication 1757-PM002A-EN-E - June 2006
Appendix
C
Limitations
General Limitations
Item Enforcement Limit Comment
VCR FFLD 128 Total 16 in/16 out per H1
Function Blocks Server 8 (no license, demo)
64, 256, 1024 Activation dependent
Devices Server 80 or 520 (FFLD
included in count) IDShellHSE.dll
dependent
Suggested Limitations
Segment Usage Macrocycle times (mS) Devices/H1 Segment
I/O 1000–2000 12–16
simple loop control 700–1000 6–8
fast loop control 500–700 4–5
critical loop control 300–500 2–3