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Memory Device Types
This is used not to output but to configure a logic circuit.
This is the input part receiving data directly.
This is the output part transferring the result of an operation.
This is used like M but is used as the device conserving the precious data when the power is ON or the RUN starts. The data is conserved till the power is ON again though it is OFF. It can be processed with “Data Clear” function in the Loader to delete the data.
It is unable to output to outside directly for data link with upper device and lower one. When the power is ON and the RUN starts, the part except the device assigned to a parameter is deleted as 0 and there is no default nonvolatile device. In case that this is not used for link and high-speed counter, this can be used like M.
This has the device having the operation state, setting type, card number, system clock contact and user clock contact for a PLC. It is available to input an instruction with only Operand.
There are the instructions of 5 types and the counting method is different according to instruction. If input condition is realized, a timer will start to count. And if timer reaches set time or 0, contact output is ON. The maximum set value is FFFFh and the value can be expressed in decimal figure or in hexadecimal figure. ON Delay, Off Delay, Accumulation ON Delay, Monostable, Retriggerable
Counter counts at the rising edge of input condition and stop counting at reset input to delete current value as 0 or to substitute it as set value. According to the instructions of 4 types, counting method is different. The maximum set value is FFFFh and the value can be expressed in decimal figure or in hexadecimal figure. Up Counter, Down Counter, Up/Down Counter, Ring Counter
This, which is the relay for step control, is classified into the priority of Last-In and the step control according to using the instructions (OUT, SET). This is composed of 2-step instruction. The device except the one assigned to a parameter when the power is ON and the RUN starts is deleted as the first step, 0.
This is used to store the internal data. It is available to read and write in 32-bit.
| Type of Data | Example of Use |
|---|---|
| Bit | X013F, Y0028, L0119 |
| Word | Y0120, M0040, K0100 |