Omron SYSMAC CVM1 Series Operation Manual page 38

Data Areas for PC Link Systems
Word in CPU Bus Unit
Area
CIO 1500 + 25 × N
Link #1
CIO 1500 + 25 × N + 1
CIO 1500 + 25 × N + 2
Link #0
CIO 1500 + 25 × N + 3
PC Link Error Flags
Word
N: Unit number
(
CIO 1500 + 25 × N
CIO 1500 + 25 × N + 1
CIO 1500 + 25 × N + 2
CIO 1500 + 25 × N + 3
Word
N: Unit number
( )
CIO 1500 + 25 × N
Link #1
CIO 1500 + 25 × N + 1
CIO 1500 + 25 × N + 2
Link #0
CIO 1500 + 25 × N + 3
Level Flags
• PLC Run Flags in a Multi-level System (N = PC Link Unit's unit number)
Link
07 06
Node 15 Node 14 Node 13 Node 12 Node 11 Node 10 Node 9
Node 7 Node 6
Node 15 Node 14 Node 13 Node 12 Node 11 Node 10 Node 9
Node 7 Node 6
• 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
) 15 14
Node 31 Node 30 Node 29 Node 28 Node 27 Node 26 Node 25 Node 24
Node 23 Node 22 Node 21 Node 20 Node 19 Node 18 Node 17 Node 16
Node 15 Node 14 Node 13 Node 12 Node 11 Node 10 Node 9
Node 7 Node 6
• PC Link Error Flags in a Multi-level System
Link
15 14
Node 15 Node 14 Node 13 Node 12 Node 11 Node 10 Node 9
Node 7 Node 6
Node 15 Node 14 Node 13 Node 12 Node 11 Node 10 Node 9
Node 7 Node 6
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
N: Unit number
(
CIO 1500 + 25 × N + 4 11
Bit
05 04 03
Node 5 Node 4 Node 3
Node 5 Node 4 Node 3
Bit
13 12 11
Node 5 Node 4 Node 3
Bit
13 12 11
Node 5 Node 4 Node 3
Node 5 Node 4 Node 3
Bit
)
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.
Section 2-5
02 01
Node 8
Node 2 Node 1 Node 0
Node 8
Node 2 Node 1 Node 0
10 09
Node 8
Node 2 Node 1 Node 0
10 09
Node 8
Node 2 Node 1 Node 0
Node 8
Node 2 Node 1 Node 0
Description
00
08
08
23