Specifications

Setup & SetUp Command 5-12
to echo so that it may be used in a daisy-chain (See Communications). Read
out the current setup with the Read Setup command:
Command: $1RS
Response: *310701C2
By referring to Table 5.3, we find that the echo is controlled by bit 2 of byte
3. From the RS command we see that byte 3 is currently set to 01. This is
the hexadecimal representation of binary 0000 0001. To set echo, bit 2 must
be set to ‘1’. This results in binary 0000 0101. The new hexadecimal value
of byte 3 is 05. To perform the SU command, use the data read out with the
RS command, changing only byte 3:
Command: $1WE (SU is write-protected)
Response: *
Command: $1SU310705C2
Response: *
Verify that the module is echoing characters and the setup is correct.
By using the RS command and changing one setup parameter at a time, any
problems associated with incorrect setups may be identified immediately.
Once a satisfactory setup has been developed, record the setup value and
use it to configure similar modules.
If you commit an error in using the SetUp command, it is possible to lose
communications with the module. In this case, it may be necessary to use
the Default Mode to re-establish communications.
The DA, EA, HI, and LO commands affect some of the bits of the setup data
that are associated with alarms. If these commands are performed, the
setup data read back with the Read Setup command may not correspond
exactly with the data previously written with the SetUp command.
Table 5.5 Factory Setups by Model.
(All modules from the factory are set for address ‘1’, 300 baud, no parity)
Model Setup Message
D111X, D115X, D121X, D123X, D125X 310701C2
D112X, D124X 31070182
D110X, D113X, D114X 31070142
D13XX, D155X, D156X 31070142
D141X, D142X, D143X, D146X 31070182
D145X, D15XX 310701C2
D16XX 310701C0
D170X 31070100