Init Mode - ICP DAS USA I-7021 User Manual

1.12.2 INIT Mode

When the module is powered on with the INIT* pin
connected to the GND pin or the rear slide switch set to
the INIT position as shown in the figure below, the
module is in INIT mode, (see Section A.1 for details), and
the communication settings are as follows:
1. Address: 00
2. Baud Rate: 9600 bps
3. No checksum
4. Protocol: DCON
If communication with the module is not possible, set the
module to the INIT mode and use the above settings to
communicate with the module. To read the current
settings, send the commands $AA2, (see Section 2.9), and
$AAP, (see Section 2.30). To set new settings, send the
commands %AANNTTCCFF, (see Section 2.1) and
$AAPN, (see Section 2.31). The new communication
settings will be effective after the next power-on reset.
42 I-7021/22/24, M-7022/24/28 User Manual, Rev: B2.3