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MELSEC-Q
3 SPECIFICATIONS
Address
Decimal (Hex)
Applicable
protocol
CH1 CH2
Application Name
Initial
value
MC Non Bi
Registration
allowed/not
allowed
Reference
section
Transmission sequence status (For confirmation of MC protocol
communication status)
597
(255
H
)
613
(265
H
)
0: Waiting for receiving command
1: Receiving command
2: Command reception complete
3: Waiting to access PLC CPU
4: Accessing PLC CPU
5: PLC CPU access complete
6: Response message transmission
R—
On-demand execution result
598
(256
H
)
614
(266
H
)
0 : Normal completion
1 or more: Abnormal completion (error code)
RW —
Section
8.6.4
Section
10.1.4
Data transmission result
599
(257
H
)
615
(267
H
)
0 : Normal completion
1 or more: Abnormal completion (error code)
Data reception result
600
(258
H
)
616
(268
H
)
0 : Normal completion
1 or more: Abnormal completion (error code)
0
RW
Not allowed
Chapter 6
Chapter 7
Section
8.6.5
Section
8.6.6
601
(259
H
)
617
(269
H
)
System area
—
MC protocol transmission error code
(excludes A compatible 1C frame communication)
602
(25A
H
)
618
(26A
H
)
0: No error 1 or more: Transmission error code
RW —
Section
8.6.4
Receive user frame (nth)
603
(25B
H
)
619
(26B
H
)
For confirmation
of communica-
tion result
0 : Not received
1 to 4: Combination of user frame No. designations for reception
message
0
—R—
Not allowed
Section
8.6.5
604 to
607
(25C
H
to 25FH)
620 to
1023
(26C
H
to
3FFH)
Use prohibited System area
—
Transmission data count designation
1024
(400
H
)
2048
(800
H
)
0: No designation 1 or more: Number of send data
Transmission data designation
1025 to
1535
(401H to
5FFH)
2049 to
2559
(801H to
9FFH)
Data to be sent to an external device
Receive data count (Number of data for which read is requested)
1536
(600
H
)
2560
(A00
H
)
0: No receive data 1 or more: Number of receive data
Receive data
1537 to
2047
(601
H
to
7FFH)
2561 to
3071
(A01
H
to
BFFH)
Transmission/rece
ive area
Data received from an external device
0 RW Not allowed
Chapter 6
Chapter 7
Section
8.4.5
Section
8.4.7
3072 to 6911
(C00H to 1AFFH)
For user
User free area (3840 words)
Determined by the user.
0 RW Not allowed
—
6912to 6952
(1B00H to 1B28H)
For registration No. 8001
H
6953 to 6993
(1B29H to 1B51H)
For registration No. 8002
H
6994 to 7034
(1B52H to 1B7AH)
For registration No. 8003
H
7035 to 7075
(1B7BH to 1BA3H)
For registration No. 8004
H
7076 to 7116
(1BA4H to 1BCCH)
For registration No. 8005
H
7117 to 7157
(1BCDH to 1BF5H)
For registration No. 8006
H
7158 to 7198
(1BF6H to 1C1EH)
For registration No. 8007
H
7199 to 7239
(1C1FH to 1C47H)
For registration No. 8008
H
7240 to 7280
(1C48H to 1C70H)
For registration No. 8009
H
7281 to 7321
(1C71H to 1C99H)
For registration No. 800A
H
7322 to 7362
(1C9AH to 1CC2H)
For registration No. 800B
H
7363 to 7403
(1CC3
H
to 1CEB
H
)
For registration No. 800C
H
7404 to 7444
(1CECH to 1D14H)
For registration No. 800D
H
7445 to 7485
(1D15
H
to 1D3D
H
)
For registration No. 800E
H
The user registration area has the following combined uses, with
data written by the user according to the purpose of use by the
TO instruction, etc.
See each explanation item concerning the configuration of each
area, the data written, etc.
(1) If data communications is being carried out by user
registration frame.
• User registration frame (User’s Manual (Application),
Chapter 9)
(2) If data communications is being carried out by the modem
function.
• Initialization Data (User’s Manual (Application) Section
3.4.3)
• Connection Data (User’s Manual (Application) Section
3.4.4)
Not allowed
Refer to left
description