
4–7Communications Overview
Publication 2711-6.0
Remote I/O Scan Group
A Remote I/O scan groups consists of words or address contained
within a discrete I/O rack or within a block transfer. For example, an
application with a full rack, block transfer read N7:0, length 64 and a
block transfer write N7:128, length 62 has these scan groups:
• O:010 – O:017
• I:010 – I:017
• N7:0 – N7:63
• N7:64 – N7:127
• N7:128 – N7:190
Controller Types
The PanelView Remote I/O terminals communicate with the
controllers below. For each controller, the table lists supported rack
numbers and support for Pass-Through and block transfers.
Controller/Scanner
Lowest
Rack #
Highest
Rack #
Pass-Through Support Block Transfer Support
IBM PC 6008-SI
BM
VME 6008-SV
0 7 No Yes
DEC QBUS 6008-SQ
Y
PLC 5/11 3 3 All Series, All Revisions Yes
PLC 5/15 1 3 Series B, Revision N or later Yes
PLC 5/20 1 3 All Series, All Revisions Yes
PLC 5/25 1 7 Series A, Revision J or later Yes
PLC 5/30 1 7 Series A, Revision B or later Yes
PLC 5/40 1 17
octal
Series A, Revision E or later
Series B, Revision B or later
Yes
PLC 5/60
PLC 5/80
1 27
octal
Series A, Revision E or later
Series B, Revision B or later
Yes
SLC 1747-SN Series A 0 3 No No
SLC 1747-SN Series B 0 3 Yes Yes
Other 1771-SN Subsystem 1 7 No No
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