Digi DS-425 - Page 13

DS-425 Service Manual --- V1.04
4.4.3. External Command
Data will be output when DS-425 receives the command (ACK 06H) form PC. PC
send a data request signal ACK to DS-425 side, then DS-425 transmits the weight
data to PC after received the request signal, the weight data will be transferred
immediately or hold the command till weight stable. If weight cannot be stable within
the certain interval (set by specification), DS-425 will transmit NAK (15H) to PC.
Note: If ACK signal is sent to DS-425 during digital tare or re-zero operation, NAK
signal will be sent to PC.
PC Side DS-425
A
C
K
No
Weighing
Mode
Yes
Yes
NAK
Yes
X.
Seconds
Stable
NA
K
Data
No
No
EOT
04 RS-232C Protocol Page No. 18