Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 445

■Public variable (operation constant)
Variable Description
name
NMAX_HT Heating Output Conversion High Limit
NMIN_HT Heating Output Conversion Low Limit
MVREV_HT_EN Heating MV Reverse Execution condition
NMAX_CL Cooling Output Conversion High Limit
NMIN_CL Cooling Output Conversion Low Limit
MVREV_CL_EN Cooling MV Reverse Execution condition
FOTS_HT_EN Heating Tight Shut/Full Open Execution condition
MVFO_HT Heating Output Value for Full Open (unit: %)
MVTS_HT Heating Output Value for Tight Shut (unit: %)
FOTS_CL_EN Cooling Tight Shut/Full Open Execution condition
MVFO_CL Cooling Output Value for Full Open (unit: %)
MVTS_CL Cooling Output Value for Tight Shut (unit: %)
*1
TRK Tracking Flag
SVPTN_B0 Setting Value (SV) Used
SVPTN_B1 Setting Value (SV) Pattern
HBOTIME Heater Burnout Detecting Time (Sec)
TEMPALM_EN Temperature Anomaly Detection Execution condition
*1 When 1 (tracking is executed) is set to the tracking flag, connect CASOUT_T of the primary loop with the input variable CASIN_T.
■Public variable (others)
• Control mode change processing (MCHG function)
Variable Description
name
MODEIN Mode Change Signal
E_ Enable Mode Change
*1 Read or write the variables using a program. They are not displayed on "FB Property" of the engineering tool.
■Tag data
For details on tag data that is read or written with this tag FB, refer to the following.
Page 557 HTCL
■Function of the components
This tag FB consists of the following function blocks.
Item
MCHG function
Recommended range
-999999 to 999999
-999999 to 999999
TRUE: Valid
FALSE: Invalid
-999999 to 999999
-999999 to 999999
TRUE: Valid
FALSE: Invalid
TRUE: Execute
FALSE: Stop
100 to 125[%]
-25 to 0[%]
TRUE: Execute
FALSE: Stop
100 to 125[%]
-25 to 0[%]
0: Not executed
1: Executed
TRUE: Not used
FALSE: Used
TRUE: Not primary MV
FALSE: Primary MV
0 to 99999999[s]
0: Invalid
1 to 99999999: Detection
time
TRUE: Valid
FALSE: Invalid
*1
Recommended range
1 to 5
1: MAN
2: AUT
3: CAS
4: CMV
5: CSV
TRUE: Execute
FALSE: Stop
Function block
M+P_MCHG
Initial value Set by
100.0 User
0.0 User
FALSE User
100.0 User
0.0 User
FALSE User
FALSE User
112.5 User
-16.82 User
FALSE User
112.5 User
-16.82 User
0 User
TRUE User
TRUE User
0 User
FALSE User
Initial value Set by
1 User
FALSE User
Reference
Page 338 M+P_MCHG
12.40 Heating and Cooling Output (M+M_HTCL_T_)
Data type
REAL
REAL
BOOL
REAL
REAL
BOOL
BOOL
12
REAL
REAL
BOOL
REAL
REAL
INT
BOOL
BOOL
DINT
BOOL
Data type
INT
BOOL
12 LOOP TAG
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