Справочник Пользователя для Mitsubishi Electronics FX2NC
FX Series Programmable Controllers
Execution Times And Instructional Hierarchy 7
7-16
7.6
Limits Of Instruction Usage
7.6.1
Instructions Which Can Only Be Used Once In The Main Program Area
The following instructions can only be used once in the main program area. For PLC
applicability please check either the detailed explanations of the instructions or the instruction
execution tables list earlier.
applicability please check either the detailed explanations of the instructions or the instruction
execution tables list earlier.
•
Instructions which can only be used once are:
FNC 52 MTR
FNC 60 IST
FNC 70 TKY
FNC 57 PLSY
FNC 61 SORT
FNC 71 HKY
FNC 58 PWM
FNC 62 ABSD
FNC 72 DSW
FNC 59 PLSR
FNC 63 INCD
FNC 74 SEGL
FNC 68 ROTC
FNC 75 ARWS
•
Only one of either FNC 57 PLSY or FNC 59 PLSR can be programmed at once.
Both instructions can not be present in the same active program.
Both instructions can not be present in the same active program.
7.6.2
Instructions Which Are Not Suitable
For Use With 110V AC Input Units
For Use With 110V AC Input Units
When using 110V AC input units certain operations, functions and instructions are not
recommended for use due to long energize/de-energize (ON/OFF) times of the 110V input
devices.
recommended for use due to long energize/de-energize (ON/OFF) times of the 110V input
devices.
•
Program operations not recommended for use are:
-
Interrupt routines
-
High speed counters
•
Instructions not recommended for use are:
FNC 51 REFF
FNC 68 ROTC
FNC 72 DSW
FNC 52 MTR
FNC 70 TKY
FNC 75 ARWS
FNC 56 SPD
FNC 71 HKY
Note: although selected FX0S units have 110V AC inputs, the instructions mentioned
above are not present in the CPU of the unit and hence cannot be used anyway
FX
0(S)
FX
0N
FX FX
(2C)
FX
2N(C)
FX
0(S)
FX
0N
FX FX
(2C)
FX
2N(C)