Specifications

Command Set 4-19
The SetPoint (SP) command will write over any value loaded by the TZ
command.
Write Enable (WE)
Each module is write protected against accidental changing of alarms,
limits, setup, or span and zero trims. To change any of these write protected
parameters, the WE command must precede the write-protected command.
The response to the WE command is an asterisk indicating that the module
is ready to accept a write-protected command. After the write-protected
command is successfully completed, the module becomes automatically
write disabled. Each write-protected command must be preceded individu-
ally with a WE command. For example:
Command: $1WE
Response: *
Command: #1WE
Response: *1WEF7
If a module is write enabled and the execution of a command results in an
error message other than WRITE PROTECTED, the module will remain
write enabled until a command is successfully completed resulting in an ‘ *
‘ prompt. This allows the user to correct the command error without having
to execute another WE command.
Write Extended Address (WEA)
The Write Extended Address (WEA) command allows the user to set the
two-byte address to be used with Extended Addressing (see Chapter 7). The
argument of the command specifies the hex ASCII values of the two
characters to be used as the Extended Address. For example, if the address
is to be set for characters '01':
Command: $1WEA3031
Response: *
Command: #1WEA3031
Response: *1WEA3031FF
Note that '30' and '31' are the hex ASCII values for characters '0' and '1'
respectively.
The EA command is write-protected and must be preceded with a WE
command.
The address data may be read back with the Read Extended Address (REA)
command.