Omron CQM1 Operation Manual page 71

Word Allocation
Relationship Between
Master/Expansion Masters
and Slave Address
Master/ I/O type
Expansion
Master
Master Output
Input
Expansion Mas- Input
ter, Unit 1 (Output)
Expansion Mas- Input
ter, Unit 2 (Output)
52
The Slave addresses corresponding (i.e. controlled by) each Master/Expan-
sion Master are shown in the table below.
The Slave addresses corresponding to each Master and Expansion Master
Unit number are fixed.
Word 4-point Slave
Address
n #0
#1
#2
#3
n+1 #4
#5
#6
#7
m #8
#9
#10
#11
m+1 #12
#13
#14
#15
j #16
#17
#18
#19
j+1 #20
#21
#22
#23
k Expansion Master Unit 2 is
for 8-/16-point Slaves only.
Do not set 4-point Slaves
k+1
between #24 and #27.
Note 1. Addresses n,m,j,k are the start addresses allocated in CQM1H/CQM1 for
the Master or Expansion Master, as shown above.
2. Expansion Master Unit 2 is for 8-/16-point Slaves only. Do not set 4-point
Slave addresses between #24 and #27.
3. If the number of I/O words for the Master and Expansion Master is set to 1
word (16 points), the corresponding Slave address (n+1), (m+1), (j+1),
(k+1) (the shaded areas) are invalid. An error results if these settings are
incorrect. In particular, if the Master output is set to 1 word but the output
Slave address is mistakenly set between #4 and #7, the Slave outputs the
same data as the n address. All Slave outputs corresponding to the Expan-
sion Master are OFF (0).
4. The following bits are allocated as Master and Expansion Master address-
es and cannot be used by the Slaves.
Input bits: always OFF
Output bits: can be used as work bits
8-point Slave
Bit Address
00 to 03 #0
04 to 07
08 to 11 #2
12 to 15
00 to 03 #4
04 to 07
08 to 11 #6
12 to 15
00 to 03 #8
04 to 07
08 to 11 #10
12 to 15
00 to 03 #12
04 to 07
08 to 11 #14
12 to 15
00 to 03 #16
04 to 07
08 to 11 #18
12 to 15
00 to 03 #20
04 to 07
08 to 11 #22
12 to 15
#24
#25
#26
#27
Section 4-1
16-point Slave
Bit Address
00 to 07 #0 00 to 15
08 to 15
00 to 07 #4 00 to 15
08 to 15
00 to 07 #8 00 to 15
08 to 15
00 to 07 #12 00 to 15
08 to 15
00 to 07 #16 00 to 15
08 to 15
00 to 07 #20 00 to 15
08 to 15
00 to 07 #24 00 to 15
08 to 15
00 to 07 #26 00 to 15
08 to 15
Bit