Quick Start Example
0F = set input range to type K thermocouple
00 = set data format to engineering units, 50ms (60Hz)
(See Chapter 6, Command Set for a full description of the syntax of the
configuration command for an analog input module)
When the module received the configuration command it will respond
with its new address:
!01(cr)
Wait 7 seconds to let the new configuration settings take effect before
issuing a new command to the module.
Note:
All reconfiguration except changing of baud rate and
checksum values can be done dynamically, i.e. the
modules need not be reset.
When changing baud
rate or checksum, these changes should be made for
all connected devices. After reconfiguration, all
modules should be powered down and then powered
up to force a reboot and let the changes take effect.
See the next section for a strategy for changing baud
rate and or checksum for an entire network.
A.3 Baud Rate and Checksum
ADAM-5000 systems contain an EEPROM to store configuration
information and calibration constants. The ROM replaces the usual
array of switches and pots required to specify baud rate, input/output
range, etc. The ADAM-5000 system can be configured remotely
through their communication ports, without having to physically alter
pot or switch settings.
Since there is no visual indication of a system's configuration status, it
is not possible to visually determine baud rate and other system
settings. It might not be possible to establish communications with a
system whose baud rate and address are unknown. To overcome this
problem, every system has an input terminal labeled INIT*. By
booting the system while connecting the INIT* terminal with the
system's GND terminal, the system configuration is forced into a
A-8 ADAM-5000