Omron CQM1H series Operation Manual page 87

Switch Settings
Terminator Setting Switch
Output Hold Setting Pin
Word Setting
Switch
4
3 (x 2 )
3
2 (x 2 )
2
1 (x 2 )
Word allocation Output
of Master
Input
The terminator setting switch of the CQM1-LK501 I/O Link Unit mounted to the
CQM1H/CQM1 located at the end of the SYSMAC BUS system must be set to
ON.
Master
CQM1H/CQM1 (1)
If this pin is set to OFF, when an error has occurred, the CQM1H/CQM1's output
word (i.e., the Master's write word) will hold the value just before the error has
occurred. If this pin is set to ON, the value will be cleared.
→
0 0 0
0 0 1
0 1 0
Words Words Words
+0, 1 +4, 5 +8, 9
Words Words Words
+2, 3 +6, 7 +10, 11
Example
If pins 1 and 2 are set to OFF and pin 3 is set to ON on the CQM1-LK501 I/O Link
Unit, and the CQM1-LK501 I/O Link Unit is connected to the C200H Remote I/O
Master, the following words will be allocated on the C200H.
Output: words 216 and 217
Input: words 218 and 219
SYSMAC BUS system
Other Slave
Terminator setting switch
DIP switch (with output hold setting pin)
DIP switch
Output hold setting pin:
Word setting pins
(see table below)
Setting
0 1
1 0
1 0
Words Words
+12, 13 +16, 17
Words Words
+14, 15 +18, 19
Section 2-2
CQM1H/CQM1 (2)
Set the terminator setting
switch of the CQM1-LK501 I/O
Link Unit mounted to this
CQM1H/CQM1 to ON.
1 1 1
0 1 1
1 0 1
Words Words Words
+20, 21 +24, 25 +28, 29
Words Words Words
+22, 23 +26, 27 +30, 31
67