Руководство оператора mitsubishi e68

MELSEC is registered trademark of Mitsubishi Electric Corporation.

Other company and product names that appear in this manual are trademarks or registered trademarks of the respective company.

Introduction

These specifications are the programming manual used when creating the sequence program for the EZMotion-NC E60/E68 with the onboard PLC development tool or PLC development software.

The PLC (Programmable Logic Controller) is largely divided into the basic commands, function commands and exclusive commands, and ample command types are available.

The commands can be used according to the purpose and application such as the PLC support function used when supporting the user PLCs.

Details described in this manual

CAUTION

For items described in «Restrictions» or «Usable State», the instruction manual issued by the machine maker takes precedence over this manual.

Items not described in this manual must be interpreted as «not possible».

This manual is written on the assumption that all option functions are added. Refer to the specifications issued by the machine maker before starting use.

Refer to the Instruction Manual issued by each machine maker for details in each machine tool.

Some screens and functions may differ or may not be usable depending on the NC version.

General precautions

(1)This Instruction Manual does not explain the operation procedures for programming the sequence program with onboard or personal computer. Refer to the related material listed below for details.

Precautions for Safety

Always read the specifications issued by the machine maker, this manual, related manuals and attached documents before installation, operation, programming, maintenance or inspection to ensure correct use.

Understand this numerical controller, safety items and cautions before using the unit.

This manual ranks the safety precautions into «DANGER», «WARNING» and «CAUTION».

Note that even items ranked as » CAUTION«, may lead to major results depending

on the situation. In any case, important information that must always be observed is described.

DANGER

Not applicable in this manual.

WARNING

Not applicable in this manual.

CAUTION

1. Items related to product and manual

For items described as «Restrictions» or «Usable State» in this manual, the instruction manual issued by the machine maker takes precedence over this manual.

An effort has been made to describe special handling of this machine, but items that are not described must be interpreted as «not possible».

This manual is written on the assumption that all option functions are added. Refer to the specifications issued by the machine maker before starting use.

Refer to the Instruction Manual issued by each machine maker for details on each machine tool.

Some screens and functions may differ or some functions may not be usable depending on the NC version.

2. Items related to start up and maintenance

Read this manual carefully and confirm the safety enough before executing the operation of the program change, forced output, RUN, STOP, etc. during operation. Operation mistakes may cause damage of the machine and accidents.

CONTENTS

— 3 —

3. Input/Output Signals

Table 3.1-1 lists whether or not high-speed input/output, interrupt input and initial processing can be performed.

Table 3.1-1 Whether or not high-speed input/output, interrupt input and initial can be performed

The operation board in Table 3.1-1 is applied when control is performed by operation board input/output card that can be added as NC option.

3.2 Handling of Input Signals Designated for High-Speed Input

The input/output signals used in user PLC are input/output for each program level as shown in Fig. 3.1-2.

In high-speed processing, input/output signal for which high-speed input or output designation (parameter) is made is input or output each time the high-speed processing program runs. In main processing, signals other than interrupt input signals or high-speed input/output designation are input/output.

When high-speed input designation signal is used in main processing, the input signal may change within one scan because high-speed processing whose level is higher than main processing interrupts. Input signal which must not change within one scan should be saved in temporary memory (M), etc., at the head of main processing and the temporary memory should be used in the main program, for example.

Input image memory

PLC one scan

High-speed processing

(2)

(1) Set at the head of main processing.

(2) Set at the head of high-speed processing.

The hatched area is high-speed input designation part. Whenever the high-speed processing program runs, data is reset in the hatched area. Thus, the signal in the hatched area may change in main processing (A) and (B) because the high-speed process interrupts between (A) and (B) and re-reads the input signal in the hatched area.

— 5 —

3. Input/Output Signals

3.3 High-Speed Input/output Designation Method

High-speed input/output is designated by setting the corresponding bit of the bit selection parameter as shown below.

(1) High-speed input designation

(2) High-speed output designation

·As listed above, one bit corresponds to two bytes (16 points).

·Input or output in which 1 is set in the table is not performed at the main processing program level.

·Although the number of bits set to 1 is not limited, set only necessary ones from viewpoint of overhead.

·High-speed input/output designation corresponds to the bit selection parameter and can be set in the parameter. However, it is recommended to set in a sequence program to prevent a parameter setting error, etc.

Example: —[MOV H3 R2928]— ….. To designate X00~X0F, X10~X1F (bit 0 and 1 for H3)

— 6 —

3. Input/Output Signals

3.4 Limits for Using High Speed Processing Program

3.4.1Separation of Main Processing and High Speed Processing Bit Operation Areas

(1)Bit operation area

When using high speed processing, the bit operation range such as the temporary memory is separated from the main process.

(Method 1) When using the same M or G code, the bit operation area for high speed processing and the bit operation area for main processing are separated by 64 points or more and used.

(Method 2) M is used for the main processing temporary memory and G is used for the high speed processing temporary memory.

(Note 1) The output devices handled with high speed processing must be limited to M or Y, D and R.

(Note 2) These limits apply not only to the OUT command, but also to the PLF, PLS, SET, RST and MOV command, etc., outputs. The devices apply to all devices including M, F, L, SM, T and C.

Interlock

Output to NC

Separated by 64 points or mpre during the MOV command.

— 7 —

3. Input/Output Signals

(2)Data area

Even with commands that handle data (numerical values) during the MOV command, etc., the bit area must be separated by 64 points or more and the data register (D) and file register (R) separated by four registers or more.

3.4.2 Separation of Remote I/O Output

When handling high speed output during the high speed process, the main processing output and high speed processing output cannot be used together in the same remote I/O unit (32 points in channel No. setting rotary switch). A separate 32 points for high speed processing output or a 16-point remote I/O unit will be required.

MOV commands, etc., that extend over differing remote I/O units must not be enforced during either main processing or high speed processing. If these must be enforced, the channel No. setting rotary switch for the output unit used in the main processing and the output unit used for the high speed processing must be set 1 or more apart.

M10

— 8 —

3. Input/Output Signals

(Usage example 1) Avoid interference with the main process by assigning 7 (last channel) for the channel No. rotary switch for high speed processing output.

For example, use YE0 to YFF (for 32-point DO-L) or YE0 to YEF (for 16-point DO-R) as the high speed processing output.

(Refer to <Usage examples 1-1, 1-2 and 1-3> below.)

(Usage example 2) Assign Y0 to Y1F (32-point) for high speed processing, and use Y20 and following for the main process.

(Refer to <Usage example 2> below.)

(Usage example 3) Assign the device after the device used for main processing for the high speed process.

For example, if the devices up to Y2D are used for the main process, use Y40 to Y5F (channel No. setting rotary switch No.: 2) for the high speed process. (Refer to <Usage example 3> below.)

Relation of channel No. setting switch and device No.

(Devices are YE0 and following)

Usage examples 1-2 show the assignment for the 16-point unit as the No. of high speed output points is relatively low.

— 9 —

4. Parameters

4. Parameters

4.1 PLC Constants

The parameters that can be used in user PLC include PLC constants set in the data type.

Set up data is stored in a file register and is backed up. In contrast, if data is stored in the file register corresponding to PLC constant by using sequence program MOV instruction, etc., it is backed up. However, display remains unchanged. Display another screen once and then select the screen again.

48 PLC constants are set (the setting range is ±8 digits). (Signed 4-byte binary data)

The correspondence between the PLC constants and file registers is listed below. The setting and display screens are also shown.

PLC constant screen

— 10 —

4. Parameters

4.2 Bit Selection Parameters

The parameters that can be used in user PLC include bit selection parameters set in the bit type. Set up data is stored in a file register and is backed up.

For use in bit operation in a sequence program, the file register contents are transferred to temporary memory (M) using the MOV command. In contrast, if data is stored in the file register corresponding to bit selection by using the MOV command etc., it is backed up. However, display remains unchanged. Once display another screen and again select screen.

The corresponding between the bit selection parameters and file registers is listed below. The setting and display screens are also shown.

— 11 —

4. Parameters

Bit selection screen

— 12 —

4. Parameters

Contents of bit selection parameters #6449~#6496

4. Parameters

(Note 1) Be sure to set the bits indicated — and blanks to 0.

(Note 2) Parameters #6481 to #6496 are reserved for debugging by Mitsubishi.

— 14 —

5. Explanation of Devices

5. Explanation of Devices

5.1 Devices and Device Numbers

The devices are address symbols to identify signals handled in PLC. The device numbers are serial numbers assigned to the devices. The device numbers of devices X, Y and H are represented in hexadecimal notation. The device numbers of other devices are represented in decimal notation.

5.2 Device List

(Note 1) The applications of the devices having a * in the device column are separately determined. Do not use the undefined device Nos., even if they are open.

(Note 2) When using temporary memory such as M device, separate READ and WRITE every 8bits.

— 15 —

5. Explanation of Devices

5.3 Detailed Explanation of Devices

5.3.1 Input/output X, Y

Input/output X and Y are a window for executing communication with the PLC and external device or CNC.

Input X

(a)This issued commands or data from an external device such as a push-button, changeover switch, limit switch or digital switch to the PLC.

(b)Assuming that there is a hypothetical relay Xn built-in the PLC per input point, the program uses the «A» contact and «B» contact of that Xn.

(c)There is no limit to the No. of «A» contacts and «B» contacts of the input Xn that can be used in the program.

(d) The input No. is expressed with a hexadecimal.

Output Y

(a)This outputs the results of the program control to the solenoid, magnetic switch, signal lamp or digital indicator, etc.

(b)The output can be retrieved with the equivalent of one «A» contact.

(c)There is no limit to the No. of «A» contacts and «B» contacts of the output Yn that can be used in the program.

PLC

Y10

24V Y10

Load

Y10

Y10

(d)The output No. is expressed with a hexadecimal.

—16 —

5. Explanation of Devices

5.3.2 Internal Relays M and F, Latch Relay L

The internal relay and latch relay are auxiliary relays in the PLC that cannot directly output to an external source.

Internal relays M

(a)These relays are cleared when the power is turned OFF.

(b)There is no limit to the No. of «A» contacts and «B» contacts of the internal relays that can be used in the program.

(c)The internal relay No. is expressed with a decimal.

Internal relay F

Internal relay F is an interface for the alarm message display.

Use the bit selection parameter to determine whether to use this relay for the alarm message interface. The target will be F0 to F127. This internal relay can be used in the same manner as the internal relay M when not used as the alarm message interface.

Latch relay L

(a)The original state is held even when the power is turned OFF.

(b)There is no limit to the No. of «A» contacts and «B» contacts of the latch relay that can be used in the program.

(c)The latch No. is expressed with a decimal.

5.3.3 Special Relays SM

The special relays are relays having fixed applications such as the carrier flag for operation results and the display request signal to the setting and display unit. Even the relays of SM0 to SM127 that are not currently used must not be used as temporary memory.

Special relays SM

(a)This relay is cleared when the power is turned OFF.

(b)There is no limit to the No. of «A» contacts and «B» contacts of the special relays that can be used in the program.

(c)The special relay No. is expressed with a decimal.

— 17 —

5. Explanation of Devices

5.3.4Timer T

(1)The 100ms timer, 10ms timer and 100ms integrated timer are available for this count-up type timer.

100ms Timer T

(a)When the input conditions are set, the count starts. When the set value is counted, that timer contact will turn ON.

(b)If the input conditions are turned OFF, the 100ms timer count value will be set to 0, and the contact will turn OFF.

(c)When #6449 bit0=1, the value is set with a decimal (Kn), and can be designated from 1 to 32767 (0.1 to 3276.7 s). The data register (D) data can also be used as the setting value. File register (R) cannot be used.

10ms Timer T

(a)When the input conditions are set, the count starts. When the set value is counted, that timer contact will turn ON.

(b)If the input conditions are turned OFF, the 10ms timer count value will be set to 0, and the contact will turn OFF.

(c)When #6449 bit0=1, the value is set with a decimal (Kn), and can be designated from 1 to 32767 (0.01 to 327.67 s). The data register (D) data can also be used as the setting value. File register (R) cannot be used.

— 18 —

5. Explanation of Devices

100ms integrated timer T

(a)When the input conditions are set, the count starts. When the set value is counted, that timer contact will turn ON.

(b)Even the input conditions are turned OFF, the 100ms integrated timer current value (count value) will be held, and the contact state will not change.

(c)The 100ms integrated timer count value will be set to 0 and the contact will turn OFF when the RST command is executed.

(d)When #6449 bit0=1, the value is set with a decimal (Kn), and can be designated from 1 to 32767 (0.1 to 3267.7 s). The data register (D) data can also be used as the setting value. File register (R) cannot be used.

(e)When the bit selection parameter (#6449 bit2=1) is set, the 100ms integrated timer current value (count value) will be held even when the power is turned OFF.

(2)With the device T, the contact • coil is handled as bit device, and the current value is handled as word device. In the function commands described after, the word device T indicates the current value even if there is no description about it.

(3)When #6449 bit0=0 is set, timer value can be specified with the parameter set in the setting and display unit. At this time, the relationship between timer device and parameter is as shown below.

(Note 1) T16 to T55, T136 to T231, and T240 to T255 are specified with a program (Kn) regardless of #6449 bit0.

(Note2) Even when #6449 bit0=0, Kn is required for a sequence program. Note that, however, the Kn value is invalid.

(Note 3) When the data register (D) is used as setting value, the data register (D) details will be the setting value regardless of #6449 bit0.

— 19 —

5. Explanation of Devices

5.3.5Counter C

(1)The counter counts up and detects the rising edge of the input conditions. Thus, the count will not take place when the input conditions are ON.

Counter C

(a)The value is set with a decimal, and can be designated from 1 to 32767. The data register (D) data can also be used as the setting value. File register (R) cannot be used.

(b)The counter count value will not be cleared even if the input conditions turn OFF. The counter count value must be cleared with the RST command.

(c)When the bit selection parameter is set, the counter current value (count value) will be held even when the power is turned OFF. Note that some can not be held depending on the version of CNC.

(2)With the device C, the contact • coil is handled as bit device, and the current value (counter value) is handled as word device. In the function commands described after, the word device C indicates the current value (counter value) even if there is no description about it.

(3)The counter setting value can be set with the setting and display unit using device C. (Variable counter)

Whether the setting value (Kn) programmed with the sequence program or the setting value set from the setting and display unit is valid is selected with the bit selection parameters. The changeover is made in a group for C0 to C23. Even when set from the setting and display unit, the setting value (Kn) program will be required in the sequence program. However, the Kn value will be ignored. When the data register (D) is used for the setting value, the data register (D) details will be used as the setting value regardless of the parameter.

(Note) The setting value for device C24 to C127 of counter C cannot be set from the setting and display unit.

5.3.6Data Register D

(1)The data register is the memory that stores the data in the PLC.

(2)The data register has a 1-point 16-bit configuration, and can be read and written in 16-bit units. To handle 32-bit data, two points must be used. The data register No. designated with the 32-bit command will be the low-order 16-bit, and the designated data register No. +1 will be the high-order 16-bit.

Higth-order 16-bit Low-order 16-bit

(X1F~X10) (XF~X0)

(3)The data that is stored once in the sequence program is held until other data is stored.

(4)The data stored in the data register is cleared when the power is turned OFF.

(6)Data registers D0 to D1023 are all user release data registers.

—20 —

5. Explanation of Devices

5.3.7File Register R

(1)As with the data registers, the file registers are memories used to store data. However, there are some that have fixed applications, and those that are released.

(2)The file register has a 1-point 16-bit configuration, and can be read and written in 16-bit units. To handle 32-bit data, two points must be used. The file register No. designated with the 32-bit command will be the low-order 16-bit, and the designated file register No. +1 will be the high-order 16-bit.

(Example) Use of the DMOV command is shown below.

Higth-order 16-bit Low-order 16-bit

(X1F~X10) (XF~X0)

(3)The data that is stored once in the sequence program is held until other data is stored.

(4)With the file registers, the following registers are the user release.

R500 to R549, R1900 to R2799

The following registers of the registers above are not cleared when the power is turned OFF. R1900 to R2799

The other file registers have fixed applications such as interface of the PLC and CNC, parameter

— 21 —

5. Explanation of Devices

5.3.8Index Registers Z

(1)The index registers are used as ornaments for the device (T, C, D, R).

165 MOVK4X0D5Z0D5Z0 Indicates D (5+Z) = D8

(2)The index register has a 1-point 16-bit configuration, and can be read and written in 16-bit units.

(3)The data stored in the index register is cleared when the power is turned OFF.

(4)Values that can be stored: Decimal -32768 to 32767

Hexadecimal 0 to FFFF

(Note) The CRT display of the index registers Z is as shown below.

MOV K3 Z0

K4 Z0

MOV X0 D5

— 22 —

5. Explanation of Devices

5.3.9Nesting N

(1)This indicates the master control nesting structure.

(2)The master control nesting (N) is used in order from smallest number.

(a)The conditions for each master control to turn ON are as follow. MC N0 M15 ………. ON when condition A is ON

MC N1 M16 ………. ON when conditions A, B are ON MC N2 M17 ………. ON when conditions A, B, C are ON

(b)The timer and counter when the master control is OFF is as follows.

— 23 —

5. Explanation of Devices

5.3.10Pointer P

(1)The pointer indicates the branch command (CJ, CALL) jump destination. The pointer No. assigned at the jump destination head is called the label.

(2)Pointers P0 to P159, P251, P252, P255 are user release pointers.

(3)P255 always indicates END.

(P255 can be used as a device for CJ command, etc, but cannot be used as a label. This cannot be used for the CALL command device.)

726

(4)The special usages of the pointers other than P255 are shown below. P251: Label for starting PLC high-speed processing program.

P252: Label for starting PLC main (ladder) processing program.

CAUTION

The PLC will not operate correctly if Notes 1 to 4 are not observed.

(Note 1) Do not omit P252 label even when there is only a PLC main processing program. (Note 2) P251 and P252 cannot be used as CJ or CALL command devices.

(Note 3) Do not create a program in which the P** in the PLC high-speed processing program is jumped to from the PLC main processing program.

(Note 4) The P** used as a CJ or CALL command device must also be programmed as a label.

— 24 —

5. Explanation of Devices

5.3.11Decimal Constant K

(1)The decimal constant can be used in the following ways.

(a)Timer counter setting value: Designate in the range of 1 to 32767.

(b)Pointer No.: 0 to 159

(c)Bit device digit designation: 1 to 8

(d)Basic command, function command, exclusive command value setting

·16-bit command: -32768 to 32767

·32-bit command: -2147483648 to 2147483647

(2)The decimal constant is stored in the binary value (binary) in the PLC.

5.3.12Hexadecimal Constant H

(1)The hexadecimal constant is used to designate the basic command, function command and exclusive command values.

· 16-bit command: 0 to FFFF

· 32-bit command: 0 to FFFFFFFF

— 25 —

6. Explanation of Commands

6. Explanation of Commands

6.1 Command List

6.1.1 Basic Commands