Omron CQM1H - PROGRAM Programming Manual page 414

Special Instructions
Diagnostics Output
1,2,3...
There are two ways to output the bit address of the OFF condition detected in
the logic diagnostics condition.
1. Bit address output (used when bit 15 of C is OFF).
Bit 15 of D indicates whether or not bit address information is stored in
D+1. If there is, bit 14 of D indicates whether the input condition is normally
open or closed.
D: 15 14 13
D+1 contains the bit address code of the input condition, as shown below.
The word addresses, bit numbers, and TIM/CNT numbers are in binary.
Data Area
15 14 13
IR, SR 1 0 0
HR 1 0 0
LR 1 0 0
TIM/CNT* 1 0 0
Note a) *For the TIM/CNT area, bit 09 of D+1 indicates whether the num-
ber is a timer or counter. A 0 indicates a timer, and a 1 indicates a
counter.
b) The status of the leftmost bit of the bit number (bit 03) is reversed.
Example: If D + 1 contains 1000 0110 0100 1000, IR 10000 would be in-
dicated as follows:
1000 0110 0100 1000
IR
2. Bit address and message output (selected when bit 15 of C is ON).
Bit 15 of D indicates whether or not there is bit address information stored
in D+1 to D+3. If there is, bit 14 of D indicates whether the input condition
is normally open or closed. Refer to the following table.
Words D+5 to D+8 contain information in ASCII that are displayed on a Pe-
ripheral Device along with the bit address when FPD(––) is executed.
Words D+5 to D+8 contain the message preset by the user as shown in the
following table.
Word Bits 15 to 08
D+1 20 = space
D+2 Second ASCII character
D+3 Fourth ASCII character
D+4 2D = "–"
D+5 First ASCII character
D+6 Third ASCII character
D+7 Fifth ASCII character
D+8 Seventh ASCII character
Not used.
Input condition
0 (OFF): Normally open
1 (ON): Normally closed
Bit address information
0 (OFF): Not recorded in D+1.
1 (ON): Recorded in D+1.
D+1 bit status
12 11 10 09 08 07
0 Word address
1 1 Word address
1 0 0 Word address
1 0 1 * Timer or counter number
$64 = 100 Bit 00 (inverting status of bit 03)
First ASCII character
Third ASCII character
Fifth ASCII character
"0"=normally open, "1"=normally closed
Second ASCII character
Fourth ASCII character
Sixth ASCII character
Eighth ASCII character
Section 5-28
00
06 05 04 03 02 01
Bit number
Bit number
Bit number
Bits 07 to 00
389
00