User manual

Tamarisk
®
320
Software ICD
11
Table 8– ERR String Response Format
Byte Value/Type Description
1 0x01 Start of message.
2 0x04 ERR Response ID.
3 N Number of text bytes to follow.
4 to
(N+3)
ASCII chars
ASCII text string that contains error message. Null termination
not required.
(N+4) checksum Frame check sequence. See paragraph 2.1.
2.3.5 VALUE Response
The VALUE response is generated when a command returns a single 16-bit integer value.
Table 9– VALUE Response Format
Byte
Value/Type
Description
1 0x01 Start of message.
2 0x45 VALUE Response ID.
3 0x02 VALUE responses always have 2 parameter bytes.
4, 5 Unsigned integer Value.
6 checksum Frame check sequence. See paragraph 2.1.
2.3.6 CMD Response
The command response is generated by any command that requires a response that does not
fit any of the prior response types. The content of the response is dependent on the
command and the nature of the response.
Table 10 – CMD Response Format
Byte
Value/Type
Description
1 0x01 Start of message.
2 Command ID ID of corresponding command.
3 N Number of bytes to follow.
4 to
(N+3)
varies
The contents of this field depend on the command and
response type.
(N+4) Checksum Frame check sequence. See paragraph 2.1.
2.4 RESPONSE MESSAGE TIMING
An ACK response will nominally be returned within 1 second of the command being sent.
However, there are exceptions: