Omron CQM1H - 08-2005, Operation Manual

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Terminator Setting Switch 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)
Other Slave
SYSMAC BUS system
CQM1H/CQM1 (2)
Set the terminator setting
switch of the CQM1-LK501 I/O
Link Unit mounted to this
CQM1H/CQM1 to ON.
Terminator setting switch
DIP switch (with output hold setting pin)
Output Hold Setting Pin 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.
→
DIP switch
Output hold setting pin:
Word setting pins
(see table below)
Word Setting
Switch Setting
3 (x 2
4
) 0 0 0 0 1 1 1 1
2 (x 2
3
) 0 0 1 1 0 0 1 1
1 (x 2
2
) 0 1 0 1 0 1 0 1
Word allocation
of Master Output Words
+0, 1 Words
+4, 5 Words
+8, 9 Words
+12, 13 Words
+16, 17 Words
+20, 21 Words
+24, 25 Words
+28, 29
Input Words
+2, 3 Words
+6, 7 Words
+10, 11 Words
+14, 15 Words
+18, 19 Words
+22, 23 Words
+26, 27 Words
+30, 31
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
Switch Settings
Section 2-2