PN 305892901, Rev S
Dened 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: A[CR]
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: A0123456A6[CR]
Failure
All failure responses consist of an ASCII ‘N’ followed by a two-byte hexadecimal
ASCII failure code. Dened failure codes are given in the table below.
Example:
Slave: N01[CR]
Failure Code Description
0 Unknown Command Byte
02 Check Sum
05 Parameter Out of Range
Figure 2-20.
Dened Failure Codes.
2-26 | 3050-RM Moisture Analyzer
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