5-2 Command Response Format
5-3
(2) Response frame
1:1 Protocol
1:N Protocol
* In the 1:N protocol, a gray part is added.
* For any part other than the above-mentioned, the same data as the sent command frame is added and returned.
♦
Retransmission flag
♦
Status flag
Name
Description
Termination code
Shows the command execution result.
Retransmission
flag
Flag to show the response to retransmission. This is "1" at retransmission.
Status flag
Code to show the command execution status.
"0"
Response after usual command process.
"1"
Response returned by a request to retransmit data (RR).
"0"
Communication status
Shows that process has been executed correctly.
"1"
Tag data status
Shows that the verification result of data check command (MD) is invalid or that
overflow/underflow has occurred in the calculation of a calculation writing com-
mand (CW).
"2"
Abort status
Shows that communication to a tag has been aborted after the start by an abort-
ing command (AA).
"4"
Polling acceptance
Shows that the polling status is enabled by accepting the communication desig-
nation "PA (pa)" or "PI".
Command code
Termination code Retransmission
flag
Status
flag
Data
Terminator
n
Command code Termination code
Retransmission
flag
Status
flag
Data
Terminator
Node No.
Calculation range of FCS
Summary of Contents for V670 Series
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