High/Low Limit Alarm Check (M+P_Phpl) - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

10.19

High/Low Limit Alarm Check (M+P_PHPL)

M+P_PHPL
This FB performs the high high limit/high limit/low limit/low low limit checks and the variation rate check to the input (PVPI) and
outputs the results. If a value has exceeded an allowable range, an alarm occurs.
FBD/LD
M+P_PHPL
PVPI PVPO
Applicable tag type
PID, 2PID, 2PIDH, PIDP, SPI, IPD, BPI, R, ONF2, ONF3, MONI, SWM, MWM, PVAL
Control mode
MAN AUT
 
*1 Transition to CASDR is possible.
■Block diagram
NOR,
SIM
High high limit/high
(%)
PVPI
limit/low limit/low low
limit check
OVR
Tag data
PHA
* Indicates bits item.
Setting data
■Input/output variable
Variable Description
name
PVPI PV input (unit: %)
PVPO PV output (unit: %)
■Tag data
For details on tag data that is read or written with this tag access FB, refer to the following.
Page 490 Tag Data List
*1
CAS

M+P_PHPL
Variation
rate check
Disable alarm detection
PLA HHA LLA DPPA DPNA
ALM
CMV

NOR,
SIM
Engineering
OVR
value
conversion
NOR,
SIM
OVR
(*)
PV
Recommended Type
range
0 to 100[%] Input variable
0 to 100[%] Output variable
10 LOOP CONTROL OPERATION
10.19 High/Low Limit Alarm Check (M+P_PHPL)
CSV

(%) PVPO
Data type
REAL
REAL
291
10