Omron V530-R2000, Руководство пользователя

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V530-R2000
User’s Manual
SECTION 7
Host Communications
n
Communications Format
The commands are input in ASCII. Either uppercase or lowercase letters may be input.
Only the command (3) through the parameters (5) are given in the format descriptions for individual
commands.
·
Only the returned contents when the command could not be executed normally are given in the
format descriptions for individual commands.
·
The following contents is returned when a command is executed normally:
No. Item
Number of
characters
Description
1 Prefix 1 Input the code used to indicate the beginning of the command format. If
the prefix is set to None in the communications mode, the prefix does
not exist.
2 Unit # 2 When using multidrop connections, set the unit number of the Control-
ler to which the command is to be sent (01 to 31).
Set the unit number to ** to send the command to all connected Con-
trollers.
3 Command 3 These characters indicate the operation to be executed.
4 Space 1 Insert one space between the command (3) and the parameters (5).
5 Parameters Variable Parameters must be specified depending on the command (3).
Set the parameters, e.g., by inputting a numeric value.
6 FCS
(frame check
sequence)
2 Specify the FCS. If the FCS is set to OFF in the communications mode,
the FCS does not exist.
7 Suffix 1 or 2 Input the code used to indicate the end of the command format.
·
1:1 Connection
·
Multidrop Connections (1:N)
Inputs
Prefix Unit # Command Parameters FCS Suffix
Prefix Command Parameters FCS Suffix
1 3 4 5 6 7
1 3 4 5 6
7 2
·
Multidrop Connections (1:N)
One response is returned for each command. The suffix, FCS, and prefix in
the response are the same as those in the command.
Output
·
1:1 Connection
Prefix FCS Suffix
Prefix Unit No. FCS Suffix
Returned
contents
Returned
contents
E R