Defined Responses (Slave to Master)
There are three (3) possible responses to a communication transfer initiated by
the master. These are a Simple Acknowledge, Acknowledge with Data, and a
Failure message.
Simple Acknowledge
If the received command does not require data to be returned, a simple ac-
knowledge consisting of an ASCII 'A' will be sent.
Example:
Slave:
Acknowledge with Data
If a command issued by the master requires data in response, an Acknowledge
with Data response will be issued. This response consists of an ACSII 'A' fol-
lowed by data and checksum.
Example:
Slave:
Failure
All failure responses consist of an ASCII 'N' followed by a two-byte hexadecimal
ASCII failure code. Defined failure codes are given in the table below.
Example:
Slave:
Figure 2-20.
Defined Failure Codes.
2-26 | 3050-RM Moisture Analyzer
A[CR]
A0123456A6[CR]
N01[CR]
Failure Code
Description
0
Unknown Command Byte
02
Check Sum
05
Parameter Out of Range
PN 305892901, Rev S