Command/Response Format - YASKAWA E-7S SERVOPACK SGD7S Product Manual

14.4

Command/Response Format

The following diagram shows the command/response format.
Command (Host controller → INDEXER Module)
Axis no. Command character string
Example:
1SVON [CR]
2SVON [CR]
1POS10000 [CR]
2POS10000 [CR]
1ST [CR]
2ST [CR]
1PUN [CR]
2PUN [CR]
Note: When full-duplex wiring is being used, either [CR] or
[CR] [LF] can be used as the delimiter.
When half-duplex wiring is being used, set the delim-
iter to either [CR] or [CR] [LF] with parameter PnB00.
In both cases, [CR] [LF] will be returned as the echo-
back.
Upper-case and lower-case characters can be used
in the command (including the axis number) and are
treated the same.
Note: In ASCII, the [CR] character is 0Dh and the [LF] character is 0Ah.
To maximize communications reliability, confirm the echoback and responses to each command
while communicating with the INDEXER Module. When the echoback and responses are not
being confirmed, improve the communications reliability by reading the status when appropriate.
Important
Response (Host controller ← INDEXER Module)
Delimiter
Axis no. Response character string
Note: The response's delimiter is always [CR] [LF].
Alphabetical characters in the response are always
upper-case.
14.4 Command/Response Format
Delimiter
Example:
1OK [CR] [LF]
2OK [CR] [LF]
1OK [CR] [LF]
2OK [CR] [LF]
1OK [CR] [LF]
2OK [CR] [LF]
1PUN = +00004567 [CR] [LF]
2PUN = -00002345 [CR] [LF]
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