!
4-8SectionOffset and Gain Adjustment
97
2. Turn bit 04 of IR word n+1 ON and then OFF again.
SHIFT
CONT
#
1
B
0
A
1
B
0
A
4
E
MONTR
10104 10105
^OFF ^ ON
PLAY
SET
10104 10105
ON ^ ON
REC
RESET
10104 10105
OFF ^ ON
While the Clear Bit is ON, the default offset and gain values will be saved to
the Unit’s EEPROM when the Set Bit turns ON.
3. To finish the clearing of adjusted values, turn OFF bit 05 (the Clear Bit) of IR
word n+1.
SHIFT
CONT
#
1
B
0
A
1
B
0
A
5
F
MONTR
10105 10104
^ ON ^OFF
REC
RESET
10105 10104
OFF ^OFF
Caution Do not turn OFF the power supply or restart the Unit while the Set Bit is ON (data
is being written to the EEPROM). Otherwise, illegal data may be written in the
Unit’s EEPROM and “Special I/O Unit Errors” may occur when the power supply
is turned ON or when the Unit is restarted, causing a malfunction.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.
Note The EEPROM can be overwritten 50,000 times.
4-8-3 Output Offset and Gain Adjustment Procedures
To specify the output number to be adjusted, write the value to the rightmost byte
of IR word n as shown in the following diagram.
(Rightmost)
(Leftmost)
Word n
Output to be adjusted (1 to 2)
I/O specification
2: Input (fixed)
For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).
The following example uses output number 1 adjustment for illustration. (The
unit number is 0.)
CLR
00000
SHIFT
CH
*
1
B
0
A
0
A
MONTR
c100
0000
Specifying Output
Number to be Adjusted
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