Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 131)

6-2
IM 04L31A01-17E
• Channel number
01 to 20: Measurement channels (01 to 06 on the CX1000)
31 to 60: Computation channels (31 to 42 on the CX1000)
101 to 118: Internal control channels (101 to 106 on the CX1000)
Example Loop1 PV = 101
Loop1 SP = 102
Loop1 OUT = 103
201 to 248: External control channels (201 to 212 on the CX1000)
Example Loop EXT1 PV = 201
Loop EXT1 SP=202
Loop EXT1 OUT = 203
• Relay number: 3 characters
Query
• A question mark is used to specify a query.
• By placing a query after a command or parameter, the setup information of the
corresponding command can be queried. Some commands cannot execute
queries. For the query syntax of each command, see sections 6.4 to 6.7.
Example 1 SR[ p1]?
SR? or SR p1? can be executed.
Example 2 SA[ p1[,p2]]? SA?, SA p1?, or SA p1,p2? can be executed.
Delimiter
• A comma is used as a delimiter.
• Parameters are separated by delimiters.
Sub Delimiter
• A semicolon is used as a sub delimiter.
• By separating each command with a sub delimiter, up to 10 commands can be
specified one after another. However, the following commands and queries cannot
be specified one after another. Use them independently.
• Output commands other than BO, CS, and IF commands.
• YO command
• Queries
* If there are consecutive sub delimiters, they are considered to be single. In addition, sub
delimiters at the front and at the end of the command are ignored.
Example ;SR01,VOLT;;;SR02,VOLT;<terminator> is taken to be
SR01,VOLT;SR02,VOLT<terminator>.
Terminator
Use either of the following two characters for the terminator.
• CR+LF (0DH 0AH in ASCII code)
• LF (0AH in ASCII code)
Note
• Do not specify a channel or relay number that is not available on the CX. An error will occur.
• The total data length from the first character to the terminator must be less than or equal to
2047 bytes.
• Commands are not case sensitive (with the exception of user-specified character strings).
• All the commands that are listed using sub delimiters are executed even if any of the
commands in the middle is erroneous.
• Spaces that are inserted before and after a parameter are ignored. However, if spaces are
inserted before a command, after a sub delimiter, or after a query, an error occurs.
6.1 Command Syntax