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23
Data Areas for PC Link Systems
Section 2-5
• PLC Run Flags in a Multi-level System (N = PC Link Unit’s unit number)
PC Link Error Flags
• The PC Link Error Flags indicate communications errors with other PC
Link Units. After the PC Link is established, an Error Flag will be ON when
there is a transfer error or a power interruption occurs in the correspond-
ing PC Link Unit. The Error Flag will be OFF when the PC Link Unit is
operating normally.
• If an error occurs when the power is turned ON and the PC Link is not
established, these flags will not operate and will all remain OFF.
• The Error Flags will not be turned ON when a PLC is stopped by execu-
tion of a FALS(07) instruction. In this case, use the PC Run Flags to iden-
tify the stoppage.
• The PC Link Error Flags are output to bits 08 to 15 of the first 4 words of
the CPU Bus Unit Area and are read-only. (Bits 00 to 07 of these words
contain the PLC Run Flags.)
• PC Link Error Flags in a Single-level System
• PC Link Error Flags in a Multi-level System
Level Flags
These flags can be used to check the operating level setting (link number set-
ting) of the PC Link Unit(s) mounted in the PLC. The flags contained in the
fifth word of the CPU Bus Unit Area and are read-only.
Word in CPU Bus Unit
Area
Link
Bit
07
06
05
04
03
02
01
00
CIO 1500 + 25
×
N
Link #1
Node 15
Node 14
Node 13
Node 12
Node 11
Node 10
Node 9
Node 8
CIO 1500 + 25
×
N + 1
Node 7
Node 6
Node 5
Node 4
Node 3
Node 2
Node 1
Node 0
CIO 1500 + 25
×
N + 2
Link #0
Node 15
Node 14
Node 13
Node 12
Node 11
Node 10
Node 9
Node 8
CIO 1500 + 25
×
N + 3
Node 7
Node 6
Node 5
Node 4
Node 3
Node 2
Node 1
Node 0
Word
(
N: Unit number
)
Bit
15
14
13
12
11
10
09
08
CIO 1500 + 25
×
N
Node 31
Node 30
Node 29
Node 28
Node 27
Node 26
Node 25
Node 24
CIO 1500 + 25
×
N + 1
Node 23
Node 22
Node 21
Node 20
Node 19
Node 18
Node 17
Node 16
CIO 1500 + 25
×
N + 2
Node 15
Node 14
Node 13
Node 12
Node 11
Node 10
Node 9
Node 8
CIO 1500 + 25
×
N + 3
Node 7
Node 6
Node 5
Node 4
Node 3
Node 2
Node 1
Node 0
Word
(
N: Unit number
)
Link
Bit
15
14
13
12
11
10
09
08
CIO 1500 + 25
×
N
Link #1
Node 15
Node 14
Node 13
Node 12
Node 11
Node 10
Node 9
Node 8
CIO 1500 + 25
×
N + 1
Node 7
Node 6
Node 5
Node 4
Node 3
Node 2
Node 1
Node 0
CIO 1500 + 25
×
N + 2
Link #0
Node 15
Node 14
Node 13
Node 12
Node 11
Node 10
Node 9
Node 8
CIO 1500 + 25
×
N + 3
Node 7
Node 6
Node 5
Node 4
Node 3
Node 2
Node 1
Node 0
Word
(
N: Unit number
)
Bit
Description
CIO 1500 + 25
×
N + 4 11
ON when the PLC contains is a PC Link Unit that is
set to multi-level operation Link #1.
12
ON when the PLC contains is a PC Link Unit that is
set to single-level operation or multi-level operation
Link #0.
Содержание CVM1 Series
Страница 1: ...Cat No W434 E1 01 SYSMAC CVM1 CV Series CVM1 LK401 PC Link Unit This manual is PDF file only...
Страница 2: ...CVM1 LK401 PC Link Unit Operation Manual Produced July 2004...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 41: ...26 Differences from Earlier PC Link Units Section 2 6...
Страница 77: ...62 Replacement Checklists Section 3 6...
Страница 95: ...80 Link Adapter Specifications Appendix B...
Страница 101: ...86 PC Link System I O Response Time Appendix C...
Страница 103: ...88 PC Link Settings and Status Areas Appendix D...
Страница 105: ...Revision History 90...