Omron CQM1H - PROGRAM Programming Manual page 156

Absolute Encoder Interface Board
Note These words are refreshed only once every cycle, so they may differ from the
actual PV.
Using PRV(62)
PRV(62) is used to read the PVs of absolute high-speed counters 1 and 2.
Specify absolute high-speed counter 1 or 2 in P (P=001 or 002).
(@)PRV(62)
The PV of the specified absolute high-speed counter is stored as shown
below. The PV is stored as 8-digit BCD, regardless of whether the Board is in
BCD Mode or 360 ° Mode.
Leftmost Rightmost
4 digits 4 digits
Note The PV can be read accurately at the time PRV(62) is executed.
Reading Absolute High-speed Counter Status
There are two ways to read the status of high-speed counters 1 and 2:
• Reading AR area flags
• Using PRV(62)
Reading AR Area Flags
The CQM1H words relating to absolute high-speed counters 1 and 2 are
listed below. It is possible to determine the status of absolute high-speed
counters 1 and 2 by reading these data words.
• Inner Board Error Codes
Word Bits
AR 04 08 to 15
P: Port
P
001: Port 1
002: Port 2
000
D D: First destination word
BCD Mode
0000 0000 to 0000 4095
D
Slot The stored error codes are as follows:
2 00 Hex:
01 or 02 Hex:
03 Hex:
Section 2-3
360° Mode
0000 0000 to 0000 0359
Function
Normal
Hardware error
PC Setup error
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