28
Multilevel PC Link Systems
Flag type
Bit no.
SR 247
SR 248
SR 249
SR 250
Run flags
00
Unit #8,
level 1
Unit #0,
level 1
Unit #8,
level 0
Unit #0,
level 0
01
Unit #9,
level 1
Unit #1,
level 1
Unit #9,
level 0
Unit #1,
level 0
02
Unit #10,
level 1
Unit #2,
level 1
Unit #10,
level 0
Unit #2,
level 0
03
Unit #11,
level 1
Unit #3,
level 1
Unit #11,
level 0
Unit #3,
level 0
04
Unit #12,
level 1
Unit #4,
level 1
Unit #12,
level 0
Unit #4,
level 0
05
Unit #13,
level 1
Unit #5,
level 1
Unit #13,
level 0
Unit #5,
level 0
06
Unit #14,
level 1
Unit #6,
level 1
Unit #14,
level 0
Unit #6,
level 0
07
Unit #15,
level 1
Unit #7,
level 1
Unit #15,
level 0
Unit #7,
level 0
Error flags
08
Unit #8,
level 1
Unit #0,
level 1
Unit #8,
level 0
Unit #0,
level 0
09
Unit #9,
level 1
Unit #1,
level 1
Unit #9,
level 0
Unit #1,
level 0
10
Unit #10,
level 1
Unit #2,
level 1
Unit #10,
level 0
Unit #2,
level 0
11
Unit #11,
level 1
Unit #3,
level 1
Unit #11,
level 0
Unit #3,
level 0
12
Unit #12,
level 1
Unit #4,
level 1
Unit #12,
level 0
Unit #4,
level 0
13
Unit #13,
level 1
Unit #5,
level 1
Unit #13,
level 0
Unit #5,
level 0
14
Unit #14,
level 1
Unit #6,
level 1
Unit #14,
level 0
Unit #6,
level 0
15
Unit #15,
level 1
Unit #7,
level 1
Unit #15,
level 0
Unit #7,
level 0
If the PC is in a Multilevel PC Link System and the content of word 248 is
02FF, then PC Link Units #0 through #7 of in the PC Link Subsystem as-
signed operating level 1 would be in RUN mode, and PC Link Unit #1 in the
same Subsystem would have an error. The hexadecimal digits and corre-
sponding binary bits of word 248 would be as shown below.
Bit no
15
0
Binary
0 0 0 0
0 0 1 0
1 1 1 1
1 1 1 1
Hex
0
2
F
F
3-4-2
Data Retention Control Bit
SR bit 25212 can be turned ON to preserve the status of IR and LR bits
when shifting from PROGRAM to MONITOR or RUN mode or when shifting
from MONITOR or RUN mode to PROGRAM mode. If bit 25212 is OFF, IR
and LR bits will be turned OFF when switching between these modes.
The status of the Data Retention Control bit is maintained for power interrup-
tions or when PC operation is stopped.
Application Example
SR Area
Section 3-4
Содержание SYSMAC C1000H
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