1785-UM022B-EN-P - February 2002
Processor Specifications A-3
PLC-5/20C15 PLC-5/40C15 PLC-5/46C15 PLC-5/80C15
Maximum User Memory Words 16K
48K
1
48K
1
100K
2
Maximum Total
I/O
Any Mix 512 2048 2048 3072
Complimentary 512 in and 512
out
2048 in and
2048 out
2048 in and
2048 out
3072 in and
3072 out
Program Scan Time 0.5 ms per K word (bit logic)
2 ms per K word (typical)
ControlNet I/O
3
Transmission Rate 5M bit/s
Network Update Time (NUT) 2-100 ms (user selectable)
Number of ControlNet Ports 1 (redundant)
Maximum Number of Nodes per Link without a Repeater 48—with 250 m (approx. 820 ft) cable length
Maximum Number of Nodes per Link with Repeaters 99
Maximum Link Cable Length without a Repeater 1,000 m (approximately 3,280 ft)—with 2 nodes
500 m (approximately 1,640 ft)—with 32 nodes
250 m (approximately 820 ft)—with 48 nodes
Maximum Number of I/O Map Entries 64 96 96 128
Maximum DIF/DOF Size 2000 words 3000 words 3000 words 4000 words
Maximum Link Cable Length with Repeaters 6,000 m (approximately 19,680 ft)—with 2 nodes
3,000 m (approximately 9,840 ft)—typical
Remote I/O and
DH+
Transmission Rate 57.6K bit/s
115.2K bit/s
230.4K bit/s
I/O Scan Time (Typical) 10 ms per rack @ 57.6K bit/s
7 ms per rack @ 115.2K bit/s
3 ms per rack @ 230K bit/s
Maximum Number of Remote I/O Racks 3 15 15 23
Maximum Number of Remote I/O Devices 12 60 60 92
Number of Ports Configurable for DH+ or Remote I/O
(Adapter or Scanner)
1 2 2 2
Number of Dedicated DH+ Ports 1 0 0 0
Number of Serial Ports 1
Number of Coprocessor Ports 1
Maximum Number of MCPs 16
1
The PLC-5/40C15 and -5/46C15 processors have a limit of 32K words per data-table file.
2
The PLC-5/80C15 processor has a limit of 56K words per program file and 32 K words per data table file. The PLC-5/80C processor has 64K words of total data
table space.
3
For more information, see the ControlNet Cable System Planning and Installation Manual, publication 1786-6.2.1.
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