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Control Data
Ethernet Systems Refer to the PC Card Unit Operation Manual for details.
Word Bits 00 to 07 Bits 08 to 15
C Number of words (0 to 1000 in 4-digit hexadecimal, i.e., 0000
hex
to 03E8
hex)
C+1 Response time limit (0.1 and 25.4
seconds in 0.1 s increments in
2-digit hexadecimal without
decimal point, i.e., 01
hex
to FF
hex
)
Default is 00
hex
(2 seconds)
Bits 08 to 11:
No. of retries (0 to 15 in
hexadecimal,
i.e., 0
hex
to F
hex
)
Bit 12 ON: Direct source
beginning word
designation
OFF: Indirect designation
Bit 13 ON: Response not
returned.
OFF: Response returned.
Bit 14 ON: Operating level 0
OFF: Operating level 1
Bit 15: Set to 1.
C+2 Source node (0 to 127 in 2-digit
hexadecimal, i.e., 00
hex
to 7F
hex
)*
Bits 08 to 12:
Unit address of source
node. Set to 00
hex
.
Bits 13 to 15: Set to 0.
SYSMAC NET Link Systems The source port number is always set to 0. Set the network number to 0 to re-
ceive data to a node on the same Subsystem (i.e., network). Refer to the SYS-
MAC NET Link System Manual for details.
Word Bits 00 to 07 Bits 08 to 15
C Number of words (0 to 1000 in 4-digit hexadecimal, i.e., 0000
hex
to 03E8
hex
)
C+1 Network number (0 to 127 in 2-digit
hexadecimal, i.e., 00
hex
to 7F
hex
)
Bit 12 ON: Direct source
beginning word designation
OFF: Indirect designation
Bit 14 ON: Operating level 0
OFF: Operating level 1
Bits 08 to 11, 13 and 15: Set to 0.
C+2 Source node (1 to 126 in 2-digit
hexadecimal, i.e., 01
hex
to 7E
hex
)
Source port
NSB: 00
NSU: 01/02
SYSMAC LINK Systems Refer to the SYSMAC LINK System Manual for details.
Word Bits 00 to 07 Bits 08 to 15
C Number of words (0 to 256 in 4-digit hexadecimal, i.e., 0000
hex
to 0100
hex
)
C+1 Response time limit (0.1 and 25.4
seconds in 2-digit hexadecimal
without decimal point, i.e., 00
hex
to
FF
hex
)
Note: The response time will be
2 seconds if the limit is set to 0
hex
.
There will be no time limit if the
time limit is set to FF
hex
.
Bits 08 to 11:
No. of retries (0
to 15 in
hexadecimal,
i.e., 0
hex
to F
hex
)
Bit 12 ON: Direct source
beginning word
designation
OFF: Indirect designation
Bit 13: Set to 0.
Bit 14 ON: Operating level 0
OFF: Operating level 1
Bit 15: Set to 1.
C+2 Source node (0 to 62 in 2-digit
hexadecimal, i.e., 00
hex
to 3E
hex
)
Set to 0.
Network Instructions Section 5-26