5-13
Section
Connecting Commands
94
If a communications error (70) or verifications error (71) occurred during a write
command, it is possible that some or all of the addresses specified in the com-
mand do not contain the expected data. The data outside of the range of ad-
dresses specified in the command will not be affected.
The Controller’s ERR indicator (red) will also light when the multi-trigger end re-
sponse or selective Tag detection end response is sent.
5-13 Connecting Commands
The connecting command function (+) can be used to send a pair of commands
to an ID Tag in one command transmission from the host.
Available Commands
The V700-CD
j
D-V3 supports the following 4 kinds of command combinations
for use in a wide variety of applications. The following lists show which command
pairings are allowed. Do not make any combinations that are not shown below.
In the following combinations, a “read command” is RD or PR; A “write com-
mand” is WT or PW. The term “ADD/SUBTRACT” means either the ADD com-
mand or SUBTRACT command.
1, 2, 3...
1. One-time Processing of Read, Write, ADD, and SUBTRACT Commands
The following command combinations can be used to process a pair of com-
mands (read, write, ADD, or SUBTRACT) at the same time.
Allowed Combinations:
Read c Read command, Write c Write command,
Read c Write command, Write c Read command,
ADD/SU ADD/SUBTRACT, Read c ADD/SUB-
TRACT, Write c ADD/SUBTRACT, ADD/SU Read
command, ADD/SU Write command
The processing regions used by the two commands must not overlap.
2. Executing WRITE PROTECT with a Write or ADD/SUBTRACT Command
The following command combinations can be used to process a write com-
mand, ADD, or SUBTRACT at the same time as WRITE PROTECT.
Allowed Combinations:
Write c WRITE PROTECT, ADD/SU WRITE PRO-
TECT
3. Executing MEMORY CALCULATE with a Write or ADD/SUBTRACT Com-
mand
The following command combinations can be used to process a write com-
mand, ADD, or SUBTRACT at the same time as MEMORY CALCULATE.
Allowed Combinations:
Write c MEMORY CALCULATE, ADD/SU MEMORY
CALCULATE
The addresses being overwritten by a write command cannot overlap the
addresses being overwritten by MEMORY CALCULATE.
4. Executing a Read Command and a MEMORY CHECK on the Data that was
Read
The following command combinations can be used to process a read com-
mand and MEMORY CHECK at the same time.
Allowed Combinations:
Read c MEMORY CHECK
Command and Response Frame Structure
The following frame structure is used when commands are connected with “+.”
The STX node number, BCC, and ETX are required only once each.
Precautions
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