Emerson 1C31179G02 controller
The timer in PLC is equivalent to the time relay in the relay system. It has a set value register (one word length), a current value register (one word length) and an image register (one bit of binary) used to store its output contact status. The three storage units use the same component number. The timer of FX series PLC is divided into general timer and integral timer.
The constant K can be used as the setting value of the timer, or the contents of the data register (D) can be used to set the timer. For example, the data input by the external digital switch can be stored in the data register as the setting value of the timer. Data registers with battery backup are usually used, so that data will not be lost in case of power failure.
The number of timers and component numbers of each series are shown in Table 3 – 5. The timing range of the 100ms timer is 0.1~3276.7s, and the timing range of the 10ms timer is 0.01~327.67s. When the special auxiliary relay M8028 of FX1S is in 1 state, T32 ～ T62 (31 points) are defined as 10ms timer. When the normally open contact of X0 in Figure 3 – 10 is connected, the current value counter of T200 starts from 0 and accumulates the 10ms clock pulse. When the current value is equal to the set value 414, the normally open contact of the timer is connected and the normally closed contact is disconnected, that is, the output contact of T200 is driven for 10ms in its coil × 414=4.14s later. After the normally open contact of X0 is disconnected, the timer is reset, its normally open contact is disconnected, the normally closed contact is connected, and the current value is restored to 0.
The CPU module is equivalent to the human brain and heart. It continuously collects input signals, executes user programs, and refreshes the output of the system; Memory is used to store programs and data.
CPU chip
CPU module is mainly composed of CPU chip and memory. PLC uses the following types of CPU chips:
(1) General purpose microprocessors, such as Intel’s 808680186 to Pentium series chips;
(2) Single-chip microprocessor (SCM), such as Intel’s MCS51/96 series SCM;
(3) Bit chip microprocessor, such as AMD2900 series bit chip microprocessor. storage
The memory of PLC is divided into system program memory and user program memory. The system program is equivalent to the operating system of the personal computer, which makes the PLC have basic intelligence and can complete various tasks specified by the PLC designer. The system program is designed by the PLC manufacturer and solidified in the ROM. Users cannot read it directly. The user program of PLC is designed by the user, which determines the specific relationship between the input signal and output signal of PLC. The capacity of user program memory is generally in words (each word is composed of 16-bit binary numbers). Mitsubishi’s FX series PLC calls the unit of user program memory step (i.e. word). The user program memory capacity of small PLC is about lK words, and the user program memory capacity of large PLC can reach several M (megabytes) words.
1C31227G01 1C31203G01 1C31166G01 1X00102H01 1D54581G04
1C31169G01 1C31204G01 1C31227G02 1X00107H01 1D54582G01
1C31234G01 1C31205G01 1C31232G03 1X00126H02 1D54582G02
1C31169G02 1C31206G01 1C31233G01 1X00133H01 1D54582G03
1C31122G01 1C31107G01 1C31147G01 1X00161H01 1D54582G05
1C31125G02 1C31110G02 1C31147G02 1X00163H01 1C31192G01
1C31224G01 1C31113G01 1D42128G01 1X00163H02 1D54582G06
1C31116G04 1C31113G02 1D54416G01 1X00163H03 1C31166G02
1C31150G02 1C31113G03 1D54458G01 1X00163H04 1X00024H03
1C31132G01 1C31113G04 1D54471G02 1X00185H01 1X00093G04
1C31129G03 1C31113G05 1D54471G03 1X00377H01 1X00093G05
3A99158G01 1C31113G06 1D54540G01 1X00415H01 1X00093G06
1X00024H01 1C31116G02 1D54544G01-8 1X00416H01 1X00093G07
3A99132G02 1C31116G03 1D54557G03 1X00416H02 1X00093H08
ST24B3 1C31161G02 1D54557G07 1X00416H03 1X00093H09
5A26391H24 1C31164G02 1D54557G10 1X00416H04 1X00093G10
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