Rievtech PR-12 Series, User Manual And Programmers Manual

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4.Quick reference manual
4.1 Special memory area:
SMB0
Always_On SM0.0 Always ON
First_Scan_On SM0.1 ON for the first scan cycle only
SMB1
Result_0 SM1.0
Set to 1 by the execution of certain instructions when
the operation result = 0
Overflow_Illegal SM1.1
Set to 1 by exec. of certain instructions on overflow
or illegal numeric value.
Neg_Result SM1.2
Set to 1 when a math operation produces a negative
result
Divide_By_0 SM1.3 Set to 1 when an attempt is made to divide by zero
Table_Overflow SM1.4
Set to 1 when the Add to Table instruction attempts
to overfill the table
Table_Empty SM1.5
Set to 1 when a LIFO or FIFO instruction attempts to
read from an empty table
Not_BCD SM1.6
Set to 1 when an attempt is made to convert a non-BCD
value to a binary value
Not_Hex SM1.7
Set to 1 when an ASCII value cannot be converted to
a valid hexadecimal value
4.2Interrupt Events:
I1.2 Rising edge PLC_EVENT_INPUTP0 0 Highest priority
I1.4 Rising edge PLC_EVENT_INPUTP1 1 High priority
Timer interrupt 0 PLC_EVENT_TIMER0 10 Low priority
Timer interrupt 1 PLC_EVENT_TIMER1 11 Lowest priority
4.3 High speed counter
：
PR-24DC-DA-R/PR-24DC-DAI-RTA
I1.0 HC0
I1.1 HC1
I1.2 HC2
I1.3 HC3
Each high speed counter occupies an input point for receiving the pulse.No
reset, adjust the direction, start and other functions.The high speed
counter can only be used for recording number in the PLC.The number of