Mitsubishi Electric MELSEC-Q Series User Manual page 118

3 SPECIFICATIONS
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(4) After the input range setting is changed, the setting ranges of the following
items will change accordingly. As a result, the previous setting value may
become out of the setting range and a write data error may be detected.
Before changing the input range, set the values of the following items within the
expected setting range after change.
• Set value (SV) setting (buffer memory address: 34, 66)
• Proportional band (P) setting (buffer memory address: 35, 67)
• Alert set value 1 to 4 (buffer memory address: 38 to 41, 70 to 73)
• AT bias (buffer memory address: 53, 85)
• Upper setting limiter (buffer memory address: 55, 87)
• Lower setting limiter (buffer memory address: 56, 88)
• Loop disconnection detection dead band (buffer memory address: 60, 92)
• Scaling range upper limit value (buffer memory address: 197, 213)
• Scaling range lower limit value (buffer memory address: 198, 214)
• Zone 1 to 8 proportional band (P) setting
• Segment 1 to 16 set value (SV) setting
• Set value at program control start (SV_PCS) setting (buffer memory address:
501, 757)
*1: Set values to the buffer memory addresses: 282 to 313, 538 to 569 (refer
to Section 3.5.1).
*2: Set values to the buffer memory addresses: 320 to 372, 576 to 628, 384 to
436, 640 to 692, 448 to 500, 704 to 756 (refer to Section 3.5.1).
(Example) When changing the input range from thermocouple K to J at the set
value (SV) 1300 .
Thermocouple
As the set value (1300 ) is within the input range (-200 to 1372 ), a
K
write data error is not detected.
As the set value (1300 ) is outside the input range (-200 to 1200 ), a
J
write data error is detected.
*1
*2
Write data error
MELSEC-Q
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