Omron G3PW, Руководство пользователя

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Variable Area Read Section 6-6
6-6 Variable Area Read
This command reads set values.
Command
Note In the G3PW, the bit position is not used. Set it to “00”.
Response
■
Variable Type and Read Start Address
Refer to the 6-4 Services and Addresses.
■
Number of Elements
Specify the number of elements for which the set value is to be read. Up to 8
elements can be specified.
■
Response Code
Example: The following command reads current (set value: 8 digits).
Command: [STX]010000101CE0004000001[ETX][BCC]
Response: [STX]0100000101000000000000[ETX][BCC]
Example: The following command reads current (set value: 4 digits).
Command: [STX]0100001018E0004000001[ETX][BCC]
Response: [STX]010000010100000000[ETX][BCC]
"01"
2
MRC
2
SRC
2 4 4
"01"
2
"00"
Read start address
Variable
type
Bit
position No. of elements
"01"
MRC
2
SRC
2
Response code
4
"01"
Set values
No. of elements x 8 or 4
Response code Error name Cause
“1001” Command length too long The command is too long.
“1002” Command length too short The command is too short.
“1101” Area type error The specified variable type
does not exist.
“110B” Response length too long The number of elements is
larger than the maximum
number allowed.
“1100” Parameter error The bit position specification
is not “00”.
“2203” Operation error An error occurred in nonvola-
tile memory.
“0000” Normal end Processing was completed
normally.