Mitsubishi Electronics E68, E60 User Manual

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.

EZMotion-NC E60/E68 PLC Onboard Instruction Manual		..... IB-1500179(ENG)
EZMotion-NC E60/E68	PLC Interface Manual	..... IB-1500176(ENG)
EZMotion-NC E60/E68	PLC Development Software Manual	..... IB-1500177(ENG)
	(MELSEC Tool Section)

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".

			When there is a great risk that the user could be subject to
		DANGER	fatalities or serious injuries if handling is mistaken.
			When the user could be subject to fatalities or serious injuries
		WARNING
			if handling is mistaken.
			When the user could be subject to injuries or when physical
		CAUTION	damage could occur if handling is mistaken.

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

1.	System Configuration ....................................................................................			1
	1.1	System Configuration for PLC Development .............................................		1
	1.2	User PLC (Ladder) Development Procedure..............................................		2
2.	PLC Processing Program ..............................................................................			3
	2.1	PLC Processing Program Level and Operation .........................................		3
	2.2	User Memory Area Configuration ..............................................................		3
3.	Input/Output Signals ......................................................................................			4
	3.1	Input/Output Signal Types and Processing ...............................................		4
	3.2	Handling of Input Signals Designated for High-Speed Input .....................		5
	3.3	High-Speed Input/output Designation Method ...........................................		6
	3.4	Limits for Using High Speed Processing Program .....................................		7
	3.4.1		Separation of Main Processing and High Speed Processing Bit
			Operation Areas...................................................................................	7
	3.4.2		Separation of Remote I/O Output.........................................................	8
4.	Parameters ......................................................................................................			10
	4.1	PLC Constants ..........................................................................................		10
	4.2	Bit Selection Parameters ...........................................................................		11
5.	Explanation of Devices ..................................................................................			15
	5.1	Devices and Device Numbers ...................................................................		15
	5.2	Device List .................................................................................................		15
	5.3	Detailed Explanation of Devices ................................................................		16
	5.3.1		Input/output X, Y .................................................................................	16
	5.3.2		Internal Relays M and F, Latch Relay L ..............................................	17
	5.3.3		Special Relays SM ..............................................................................	17
	5.3.4		Timer T ................................................................................................	18
	5.3.5 Counter C ............................................................................................			20
	5.3.6		Data Register D ...................................................................................	20
	5.3.7		File Register R ....................................................................................	21
	5.3.8		Index Registers Z ................................................................................	22
	5.3.9		Nesting N ............................................................................................	23
	5.3.10 Pointer P ............................................................................................			24
	5.3.11 Decimal Constant K ............................................................................			25
	5.3.12 Hexadecimal Constant H ....................................................................			25
6.	Explanation of Commands ............................................................................			26
	6.1	Command List ...........................................................................................		26
	6.1.1 Basic Commands ................................................................................			26
	6.1.2 Function Commands ...........................................................................			27
	6.1.3 Exclusive commands ...........................................................................			33
	6.2	Command Formats ...................................................................................		34
	6.2.1 How to Read the Command Table ......................................................			34
	6.2.2		No. of Steps ........................................................................................	35
	6.2.3 END Command ...................................................................................			36
	6.2.4 Index Ornament ..................................................................................			36
	6.2.5		Digit Designation .................................................................................	37

7. Basic Commands
	(LD, LDI, AND, ANI, OR, ORI, ANB, ORB .....) ...............................................		41
8.	Function Commands
	(=, >, <, +, –, *, /, BCD, BIN, MOV .....) ............................................................		73
9.	Exclusive Commands ....................................................................................		190
	9.1 ATC Exclusive Command .........................................................................		191
	9.1.1	Outline of ATC Control ........................................................................	191
	9.1.2 ATC Operation ....................................................................................		191
	9.1.3	Explanation of Terminology .................................................................	191
	9.1.4	Relationship between Tool Registration Screen and Magazines ........	192
	9.1.5 Use of ATC and ROT Commands .......................................................		193
	9.1.6 Basic Format of ATC Exclusive Command .........................................		194
	9.1.7 Command List .....................................................................................		195
	9.1.8	Control Data Buffer Contents ..............................................................	195
	9.1.9	File Register (R Register) Assignment and Parameters ......................	196
	9.1.10 Details of Each Command...................................................................		198
	9.1.11 Precautions for Using ATC Exclusive Instructions ..............................		207
	9.1.12 Examples of Tool Registration Screen ...............................................		207
	9.1.13 Display of Spindle Tool and Standby Tool ..........................................		209
	9.2 S.ROT Commands ....................................................................................		210
	9.2.1 Command List ......................................................................................		210
	9.3 Tool Life Management Exclusive Command .............................................		216
	9.3.1 Tool Life Management System ............................................................		216
	9.3.2 Tool Command System .......................................................................		216
	9.3.3	Spare Tool Selection System ..............................................................	217
	9.3.4	Interface ..............................................................................................	217
	9.3.5 User PLC Processing When the Tool Life Management Function
		Is Selected ..........................................................................................	218
	9.3.6 Examples of Tool Life Management Screen ........................................		226
	9.4 DDB (Direct Data Bus) ... Asynchronous DDB ..........................................		227
	9.4.1 Basic Format of Command ..................................................................		227
	9.4.2	Basic Format of Control Data ..............................................................	227
	9.5 External Search .........................................................................................		230
	9.5.1	Function ..............................................................................................	230
	9.5.2	Interface ..............................................................................................	230
	9.5.3	Search Start Instruction .......................................................................	232
	9.5.4	Timing Charts and Error Causes .........................................................	232
	9.5.5 Sequence Program Example ..............................................................		234
	9.6 Chopping.....................................................................................................		235
	9.6.1	Chopping operation start ......................................................................	236
	9.6.2	Chopping operation stop ......................................................................	238
	9.6.3 Chopping compensation.......................................................................		239
	9.6.4	Chopping interface ...............................................................................	242
	9.6.5	Parameters (DDB function instructions from PLC) ...............................	243
	9.6.6 Example of chopping control by program command ............................		249

10. PLC Help Function.........................................................................................			252
10.1	Alarm Message Display............................................................................		253
10.1.1		Interface .............................................................................................	253
10.1.2		Screen Display ...................................................................................	255
10.1.3 Message Creation ..............................................................................			256
10.1.4		Parameters.........................................................................................	259
10.2	Operator Message Display.......................................................................		261
10.2.1		Interface .............................................................................................	261
10.2.2		Operator Message Preparation ..........................................................	262
10.2.3		Operator Message Display Validity Parameter...................................	262
10.3	PLC Switches...........................................................................................		263
10.3.1		Explanation of Screen ........................................................................	263
10.3.2		Explanation of Operation....................................................................	264
10.3.3		Signal Processing...............................................................................	265
10.3.4		Switch Name Preparation...................................................................	269
10.4	Key Operation by User PLC .....................................................................		270
10.4.1 Key Data Flow....................................................................................			270
10.4.2 Key Operations That Can Be Performed............................................			270
10.4.3		Key Data Processing Timing ..............................................................	271
10.4.4		Layout of Keys on Setting and Display Unit .......................................	272
10.4.5		List of Key Codes ...............................................................................	273
10.5	Load Meter Display ..................................................................................		274
10.5.1		Interface .............................................................................................	274
10.6	External Machine Coordinate System Compensation ..............................		276
10.7	User PLC Version Display........................................................................		277
10.7.1		Interface .............................................................................................	277

11. PLC Axis Control ...........................................................................................				279
11.1	Outline......................................................................................................			279
11.2	Specifications ...........................................................................................			279
11.2.1		Basic Specifications ...........................................................................		279
11.2.2		Other Restrictions ..............................................................................		280
11.3	PLC Interface ...........................................................................................			281
11.3.1 S.DDBS Function Command..............................................................				281
11.3.2		Control Information Data ....................................................................		282
11.3.3		Control Information Data Details ........................................................		283
	11.3.3.1 Commands ................................................................................			283
	11.3.3.2		Status ........................................................................................	284
	11.3.3.3 Alarm No....................................................................................			291
	11.3.3.4		Control Signals (PLC axis control information data) ..................	292
	11.3.3.5		Axis Designation........................................................................	294
	11.3.3.6		Operation Mode.........................................................................	294
	11.3.3.7		Feedrate ....................................................................................	295
	11.3.3.8 Movement Data .........................................................................			295
	11.3.3.9		Machine Position .......................................................................	296
	11.3.3.10 Remaining Distance..................................................................			296
11.3.4		Reference Point Return Near Point Detection....................................		297
11.3.5		Handle Feed Axis Selection ...............................................................		298

12. Appendix .......................................................................................................	299
12.1 Example of Faulty Circuit .........................................................................	299

1. System Configuration

1. System Configuration

1.1 System Configuration for PLC Development

The system configuration for PLC development is shown below.

Ladder editing, ladder monitor and PLC RUN/STOP, etc.

A new development is possible with the personal computer.

and	Unit
Settinging and DisplaDisplayUnit

The ladder is developed using the setting and display unit. (Onboard development)

BaseI/OI/OUnitUnit

To connector RS-232C

RS-232C

Up/downloading is carried out with the personal computer's development tool.

Personal computer

General printer

Used for ladder development, creating message, ladder monitor and saving data.

(Note) Refer to the "PLC Onboard Instruction Manual" (IB-1500179) for edition using the setting and display unit (onboard edition), and the "PLC Development Software Manual (MELSEC Tool Section)" (IB-1500177) for development using the personal computer.

- 1 -

1. System Configuration

1.2 User PLC (Ladder) Development Procedure

The procedure for creating the user PLC, used to control the control target (machine) built into the control unit, is shown below.

	Procedure	Personal		Computer		CNC Unit
	Start
	Determination of
	machine
	Determination of
	CNC and PLC
	specifications	Commercially available
	Determination of the
	numbers of I/O points	spreadsheet tool
	Assignment of I/O	Device	Name		Comment
		X0	X-OT		X-axis OT
	signals	X1	Y-OT		Y-axis OT
	Assignment of	X2	Z-OT		Z-axis OT
	internal relays	GX Developer
	Programming
	Debugging operation	GX Developer				Onboard
	Program correction
	Is debugging
NO	complete?
	YES
	Test operation by
	CNC unit
	Is test operation
NO	OK?	GX Developer
	YES
	Printout
						BACKUP screen
						DATA IN/OUT screen
						[BACKUP]	PARAM 3.2/2
						#1 BACKUP	#######
						#2 RESTORE	#########
						#( ) (	)
	Data save
	Com pletion	Program data				Memory cassette Binary
								data
						(F-ROM)
						- 2 -

The data created with the commercially available spreadsheet tool can be used as ladder comment data.

Use GX Developer for programming.

After completion, download the data through RS-232C.

Perform monitoring/correction with GX Developer's online function or onboard function.

Printout to a commercial printer connected with the personal computer from GX Developer.

Excute the ROM backup operation on the BACKUP screen.

Excute the binary data output on the DATA IN/OUT screen.

Program data:

Saved using GX Developer

Binary data:

Saved using DATA IN/OUT screen

2. PLC Processing Program

2. PLC Processing Program

2.1 PLC Processing Program Level and Operation

Table 2.1-1 explains the contents of users PLC processing level and Fig. 2.1-1 shows the timing chart.

	Table 2.1-1 PLC processing level
Program name	Description (frequency, level, etc.)
High-speed processing	This program starts periodically with a time interval of 7.1ms.
program	This program has the highest level as a program that starts periodically.
	It is used in signal processing where high-speed processing is required.
	Processing time of this program shall not exceed 0.5ms.
	Application example:
	Position count control of turret and ATC magazine
Main processing	This program runs constantly. When one ladder has been executed from
program (ladder)	the head to END, the cycle starts again at the head.

7.1ms

High-speed processing

Main processing

(Note 1)

This section is used by the controller.

(Note 1) The section from the END command to the next scan is done immediately as shown with the X section. Note that the min. scan time will be 14.2ms.

Fig. 2.1-1 PLC processing program operation timing chart

2.2 User Memory Area Configuration

The user memory area approximate configuration and size are shown below.

				Control information
				Message data
				Contact coil
User PLC
code area				comment data
P251
				High-speed processing
P252

Main Processing

Max. 256Kbyte from control information to messages.

Internal information table of User PLC (The table is automatically generated.)

Data excepting the ladder program Alarm messages

Operator messages PLC switches

Load meter

Contact coil comment data, etc.

(Each of them can be stored in two languages.)

Total 127Kbyte

Program with the ladder language

Programs excepting the main processing are not necessary.

The program order of initial, high-speed and main processing is random.

Total 4000 steps

- 3 -

3. Input/Output Signals

3. Input/Output Signals

3.1 Input/Output Signal Types and Processing

The input/output signals handled in user PLC are as follows:

(1)Input/output from/to controller

(2)Input/output from/to operation board (Note 1)

(3)Input/output from/to machine

The user PLC does not directly input or output these signals from or to hardware or controller; it inputs or outputs the signals from or to input/output image memory. For the reading and writing with the hardware or controller, the controller will perform the input/output according to the level of the main process or high-speed process.

Controller
						Input/output image
Operation				Controller					User PLC
						memory
board
						(device X, Y)
Machine

(Note 1) The operation board here refers to when the remote I/O unit is installed on the communication terminal.

Fig. 3.1-1 Concept of input/output processing

High-speed processing input/output

The controller reads the high-speed input designation input, and

sets in the im age m em ory.

P251

User PLC high -speed processing

The controller outputs the high-speed output designation output from the im age mem ory to the m achine.

Main processing input/output

The controller reads the

input other than the high-speed input designation,

and sets in the im age memory.

P252

User PLC m ain processing

The controller outputs the output other than the high-speed output designation from the

image m em ory to the m achine.

Fig. 3.1-2 Input/output processing conforming to program level

- 4 -

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

		High-speed input	High-speed output
		specification	specification
Input signal from control unit		x	x
Output signal to control unit		x	x
Input signal from machine		(2-byte units)	x
Output signal to machine		x	(2-byte units)
Input signal from operation board		x	x
Output signal to operation board		x	x
: Possible	x : Not possible

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

Main	A	B	A
processing
(1)

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.

For example, the following is used
M0 to M4735 for main processing	Separate by 64 points or more
M4800 to M5120 for high speed processing	(M4736 to M4799 are not 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.

	Example) Use D0 to D896 for main processing	Separate by four registers or more
	Use D900 to D1023 for high speed processing

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.

<Usage example 1-1>

<Usage example 1-2>

(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.

DX35*/45* DX100

DX35*/45* DX110/120

<Usage example 2>

<Usage example 3>

DX35*/45* DX100 DX100		DX35*/45* DX100
/120

- 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.

#	Corresponding file registers			#	Corresponding file registers			#	Corresponding file registers
	High order	Low order			High order	Low order			High order	Low order
6301	R2801	R2800		6321	R2841	R2840		6341	R2881	R2880
6302	R2803	R2802		6322	R2843	R2842		6342	R2883	R2882
6303	R2805	R2804		6323	R2845	R2844		6343	R2885	R2884
6304	R2807	R2806		6324	R2847	R2846		6344	R2887	R2886
6305	R2809	R2808		6325	R2849	R2848		6345	R2889	R2888
6306	R2811	R2810		6326	R2851	R2850		6346	R2891	R2890
6307	R2813	R2812		6327	R2853	R2852		6347	R2893	R2892
6308	R2815	R1814		6328	R2855	R2854		6348	R2895	R2894
6309	R2817	R2816		6329	R2857	R2856
6310	R2819	R2818		6330	R2859	R2858
6311	R2821	R2820		6331	R2861	R2860
6312	R2823	R2822		6322	R2863	R2862
6313	R2825	R2824		6333	R2865	R2864
6314	R2827	R2826		6334	R2867	R2866
6315	R2829	R2828		6335	R2869	R2868
6316	R2831	R2830		6336	R2871	R2870
6317	R2833	R2832		6337	R2873	R2872
6318	R2835	R2834		6338	R2875	R2874
6319	R2837	R2836		6339	R2877	R2876
6320	R2839	R2838		6340	R2879	R2878

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.

#	Corresponding		#	Corresponding		#	Corresponding		#	Corresponding
	file register			file register			file register			file register
6401	R2900-LOW		6433	R2916-LOW		6449	R2924-LOW		6481	R2940-LOW
6402	R2900-HIGH		6434	R2916-HIGH		6450	R2924-HIGH		6482	R2940-HIGH
6403	R2901-L		6435	R2917-L		6451	R2925-L		6483	R2941-L
6404	R2901-H		6436	R2917-H		6452	R2925-H		6484	R2941-H
6405	R2902-L		6437	R2918-L		6453	R2926-L		6485	R2942-L
6406	R2902-H		6438	R2918-H		6454	R2926-H		6486	R2942-H
6407	R2903-L		6439	R2919-L		6455	R2927-L		6487	R2943-L
6408	R2903-H		6440	R2919-H		6456	R2927-H		6488	R2943-H
6409	R2904-L		6441	R2920-L		6457	R2928-L		6489	R2944-L
6410	R2904-H		6442	R2920-H		6458	R2928-H		6490	R2944-H
6411	R2905-L		6443	R2921-L		6459	R2929-L		6491	R2945-L
6412	R2905-H		6444	R2921-H		6460	R2929-H		6492	R2945-H
6413	R2906-L		6445	R2922-L		6461	R2930-L		6493	R2946-L
6414	R2906-H		6446	R2922-H		6462	R2930-H		6494	R2946-H
6415	R2907-L		6447	R2923-L		6463	R2931-L		6495	R2947-L
6416	R2907-H		6448	R2923-H		6464	R2931-H		6496	R2947-H
6417	R2908-L		Use bit selection			6465	R2932-L		Bit selection parameter
6418	R2908-H		parameters			6466	R2932-H		#6449~#6496 are PLC
			#6401~#6448 freely.						operation selection
6419	R2909-L					6467	R2933-L
									parameters used by the
6420	R2909-H					6468	R2933-H
									machine manufacturer
6421	R2910-L					6469	R2934-L		and MITSUBISHI. The
6422	R2910-H					6470	R2934-H		contents are fixed.
6423	R2911-L					6471	R2935-L
6424	R2911-H					6472	R2935-H
6425	R2912-L					6473	R2936-L
6426	R2912-H					6474	R2936-H
6427	R2913-L					6475	R2937-L
6428	R2913-H					6476	R2937-H
6429	R2914-L					6477	R2938-L
6430	R2914-H					6478	R2938-H
6431	R2915-L					6479	R2939-L
6432	R2915-H					6480	R2939-H

- 11 -

4. Parameters

Bit selection screen

- 12 -

4. Parameters

Contents of bit selection parameters #6449~#6496

Symbol

7

6

5

4

3

2

1

0

name

#6449

NC card

Setting

Counter C

Integrating

PLC counter

PLC timer

Controller

display unit

0

R2924

L

thermal

thermal

-

retention

timer T

program on

program on

alarm on

alarm on

retention

1

0

#6450

External

Alarm/

Full screen

Operator

R2924

H

alarm

-

R

F

Alarm

1

operator

display of

message

message

system system message on

change

message

on

display

#6451

GX-Developer

PLC

Onboard

2

R2925

L

-

-

communi-

development

editing not

-

Onboard on

environment

possible

cation on

selection

#6452

GOT

Counter

Integrating

R2925

H

communi-

timer

3

-

(fixed)

-

cation

(fixed)

retention

connection

retention

#6453

Message

R2926

L

4

-

-

-

-

-

language

change code

#6454

Equivalent of

5

R2926

H

remote I/O 2ch

#6455

6

R2927

L

-

-

-

-

-

-

-

-

#6456

7

R2927

H

-

-

-

-

-

-

-

-

#6457

8

R2928

L

High-speed input specification 1

#6458

9

R2928

H

High-speed input specification 2

#6459

A

R2929

L

High-speed input specification 3

(Spare)

#6460

B

R2929

H

High-speed input specification 4

(Spare)

#6461

C

R2930

L

High-speed output specification 1

#6462

D

R2930

H

High-speed output specification 2

#6463

E

R2931

L

High-speed output specification 3

(Spare)

#6464

F

R2931

H

High-speed output specification 4

(Spare)

- 13 -

4. Parameters

	Symbol		7	6	5			4		3	2	1	0
	name
0	#6465		-	-	-			-		-	-	-	-
	R2932	L
1	#6466		-	-	-			-		-	-	-	-
	R2932	H
2	#6467		-	-	-			-		-	-	-	-
	R2933	L
3	#6468
	R2933	H
	#6469
													MC alarm 4
4						Standard		PLC				-
	R2934	L					parameter						output off
5	#6470
	R2934	H
	#6471
6			-	-	-			-		-	-	-	-
	R2935	L
	#6472
7			-	-	-			-		-	-	-	-
	R2935	H
8	#6473		-										-
	R2936	L
9	#6474
	R2936	H
A	#6475
	R2937	L
B	#6476
	R2937	H
C	#6477
	R2938	L
D	#6478
	R2938	H
E	#6479
	R2939	L
F	#6480
	R2939	H

(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

Device	Device No.		Unit	Details
X*	X0~XABF	(2752 points)	1 bit	Input signal to PLC. Machine input, etc.
Y*	Y0~YDEF	(3584 points)	1 bit	Output signal from PLC.
				Machine output, etc.
M	M0~M8191	(8192 points)	1 bit	Temporary memory
F	F0~F127	(128 points)	1 bit	Temporary memory, alarm message
				interface
L	L0~L255	(256 points)	1 bit	Latch relay (backup memory)
SM*	SM0~SM127 (128 points)		1 bit	Special relay
T	T0~T15	(16 points)	1 bit or 16 bits	10ms unit timer
	T16~T95	(80 points)	1 bit or 16 bits	100ms unit timer
	T96~T103	(8 points)	1 bit or 16 bits	100ms unit integrating timer
C	C0~C23	(24 points)	1 bit or 16 bits	Counter
D	D0~D1023	(1024 points)	16 bits or 32 bits	Data register for arithmetic operation
R*	R0~R8191	(8192 points)	16 bits or 32 bits	File register. R500 to R549 and R1900 to
				R2799 are released to the user for interface
				between the PLC and controller. R1900 to
				R2799 are backed up by the battery.
Z	Z0~Z1	(2 points)	16 bits	Index of D or R address (±n)
N	N0~N7	(8 points)	—	Master control nesting level
P*	P0~P255	(256 points)	—	Label for conditional jump and subroutine
				call
K	K-32768~K32767		—	Decimal constant for 16-bit command
	K-2147483648~		—	Decimal constant for 32-bit command
	K2147483647
H	H0~HFFFF		—	Hexadecimal constant for 16-bit command
	H0~HFFFFFFFF		—	Hexadecimal constant for 32-bit command

(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.

Hypothetical	relay	PLC
PB1	X10	X10
LS2	X11	X11
PB16	X1F	X1F

Input circuit

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

Program

Output circuit

(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.

				ON
	X5	X5	OFF	ON
	T57 K50
		T57 coll	OFF	5 seconds
	Input conditions
				ON
	100ms timer	T57 contact	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.

					ON
X5			X5	OFF	ON
	T1	K500
			T1 coll	OFF	5 seconds
Input	conditions				ON
	10ms timer		T1 contact	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.

X5

ON

T233 K100

X5 OFF

9 seconds

Input conditions

seconds

1.5 seconds

6

X7

100ms cumulative

timer

ON

RST T233

X7 OFF

Reset input

T233 reset command

ON

T233 coll

OFF

9 seconds

1

6

seconds

seconds

ON

T233 contact OFF

T233 current value

0

1

~ 90

91~ 100

0

1 ~ 60

(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.

Device	Parameter
T0 to T15	#6000 to #6015
T56 to T135	#6016 to #6095
T232 to T239	#6096 to #6103

(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.

Circuit example

The X0 to 1F data is

0

DMOV K8X0

D0

stored in D0,1.

Data storage

D1

D0

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.

(5) Values that can be stored: Decimal -32768 to 32767	For 16-bit command
Hexadecimal 0 to FFFF	(Using Dn)
Decimal -2147483648 to 2147483647		For 32-bit command
Hexadecimal 0 to FFFFFFFF		(Using Dn+1, Dn)

(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.

Circuit example

The X0 to 1F data is

0

DMOV K8X0

R0

stored in R0,1.

Data storage

R1

R0

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

interface, etc.
(5) Values that can be stored: Decimal -32768 to 32767	For 16-bit command
Hexadecimal 0 to FFFF	(Using Dn)
Decimal -2147483648 to 2147483647		For 32-bit command
Hexadecimal 0 to FFFFFFFF		(Using Dn+1, Dn)

- 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).

159

MOV K3 Z0

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
	MC N0	M15
N0	M15
	B		Execute when A conditions are set.
	MC N1 M16
N1	M16
	C		Execute when A,B conditions are set.
N2	MC N2 M17
	M17
			Execute when A,B,C conditions are set.
	MCR	N2	Reset MC2 to 7
			Execute when A,B conditions are set.
	MCR	N1	Reset MC1 to 7
			Execute when A conditions are set.
	MCR	N0	Reset MC0 to 7
			Execute regardless of A,B,C conditions.

(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.

· 100ms timer, 10ms timer	: The count value is set to 0.
· 100ms integrated timer	: The current count value is retained.
· Counter	: The current counter value is retained.
· OUT command	: All turn OFF.

- 23 -