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C-mode Command Details Section 4-3
4-3-9 EM AREA READ – – RE
Reads the contents of the specified number of EM words (E00000 to E09999)
starting from the specified word in the specified EM bank.
Command Format
Note Input 00, 01, or 0C to specify bank number 0, 1, or C. Input two spaces to
specify the current bank.
Response Format
Limitations A single bank of EM consists of E00000 to E32767, but the range that can be
read by this command is E00000 to E09999.
The maximum EM bank number that can be specified is 12 (0C Hex).
The text portion of the response’s first frame can contain up to 30 words. If
more than 30 words are read, the data will be returned in multiple frames.
In the second and later frames, the text portion of the response can contain
up to 31 words.
This command cannot be used to change the current bank number.
The INITIALIZE and ABORT commands can be sent instead of the delimiter
for multiple responses for this command. If other commands are sent, they will
be treated as delimiters.
Execution Conditions
End Codes An end code of 14 (format error) will be returned if the length of the command
is incorrect and an end code of 15 (entry number data error) will be returned if
the specified words exceed the data area boundaries, the specified words are
not specified in BCD, or an invalid bank number is specified. An end code of
15 will also be returned if there are no banks and file memory access is not
possible, or if the number of words to read is 0.
@
FCS
R
E
x 10
1
x 10
0
x 10
3
x 10
2
* ↵
x 10
1
x 10
0
x 10
3
x 10
2
x 10
1
x 10
0
Unit No. (BCD) Header
code
TerminatorBeginning word
(0000 to 9999)
No. of words
(0001 to 9999)
Bank No.
(See note.)
Bank No.
@RE
x 10
1
x 10
0
x 16
1
x 16
0
* ↵
x 16
3
x 16
2
x 16
1
x 16
0
FCS
Unit No. (BCD) End codeHeader
code
Read data (1 word)
Read data (for number of words read)
Terminator
Commands Responses PLC Mode UM Area
Single Multiple Single Multiple RUN MON PROG Write-protected Read-protected
OK No OK OK OK OK OK OK OK
End code (Hex) Contents
00 Normal completion
13 FCS error
14 Format error
15 Entry number data error
18 Frame length error
21 Not executable due to CPU Unit CPU error.
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