Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 166

■Output conversion
This function block performs output conversion processing.
Converted output (MVN)
NMAX
NMIN
(-10(%))
Converted output (MVN)={(NMAX-NMIN)×
NMAX: Output conversion high limit value
NMIN: Output conversion low limit value
MVREV: Output after processing of MV reverse for internal operation (%)
MVN: Output conversion output value
■Disable alarm detection
This function block sets whether to detect alarms (ALM) or not in the variation rate & high/low limiter processing.
Item
Disable alarm detection by setting tag data
Disable alarm detection by control mode selection
Disable alarm detection by loop stop processing
■Output processing at occurrence of SEA
This function block selects one of the following three conditions as M+P_OUT3_ outputs when a sensor error (SEA) has
occurred in M+P_IN, a tag access FB.
Condition
SEA_OTYPE = 0
SEA_OTYPE = 1
SEA_OTYPE = 2
■Loop stop processing
When the stop alarm (SPA) of the alarm (ALM) or the tag stop (TSTP) of the monitor output buffer (DOM) is TRUE, this
function block performs the following processing.
• When the output at loop stop is the last value (STP_OTYPE = 0), this function block holds the output (MVN). When the
output at loop stop is the preset value (STP_OTYPE = 1), this function block presets the output (MVN).
• The control mode is automatically switched to MANUAL.
• When DMLA, MHA, or MLA of the alarm (ALM) has occurred, the DMLA, MHA, or MLA is reset.
• No alarm is detected in the variation rate & high/low limiter processing.
■Auto tuning (AT2)
When auto tuning in the limit cycle method is being executed, this function block performs processing in the same way as the
one in the MANUAL mode. ( Page 598 Limit cycle method)
9 I/O CONTROL
164
9.4 Output Processing-3 with Mode Switching (With Input Addition and Compensation) (M+P_OUT3_)
0(%) 100(%)
MVREV
}+NMIN
100
Manipulated
variable (MV)
(110(%))
Disable alarm detection processing
If the following bits in the disable alarm detection (INH) are TRUE, no DMLA,
MHA, or MLA of the alarm (ALM) will be detected.
• ERRI
• DMLI
• MHI
• MLI
In MAN or CMV mode, DMLA, MHA, and MLA of the alarm (ALM) are reset
and DMLA, MHA, or MLA will not be detected.
Page 164 Loop stop processing
Processing result
MV hold
Preset MV output
Neither hold nor preset MV output is performed.