Advantech ADAM-4150 handleiding
Handleiding
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ADAM-4100 User Manual 14
2.2.7 Baud Rate and Checksum
ADAM modules contain EEPROMs that store configuration information and calibra-
tion constants. The EEPROM replaces the conventional array of switches and pots
that were originally used for specifying the baud rate, I/O range, etc.
Since there is no visual indication of a module's configuration status, it is impossible
to know the baud rate, address, or other settings just by looking at it. It might not be
possible to establish communications with a module whose baud rate and address
are unknown. To overcome this problem, every module has an input terminal labeled
"INIT*". Booting the module while connecting the INIT* switch forces the configura-
tion into a known state called the INIT* state.
INIT* State Default
Baud rate 9600
Address 00h
Checksum Disabled
Forcing the module into the INIT* state does not change any parameters in the mod-
ule's EEPROM. When the module is in the INIT* state, all configuration settings can
be changed, and the module will respond to all other commands normally.
Changing the Baud Rate and Checksum
Baud rate and checksum settings have several things in common:
They should be the same for all modules and the host computer
Their settings can only be changed by putting a module in the INIT* state
Changed settings take effect only after a module has been rebooted
To modify the baud rate or checksum settings, you must perform the following steps:
1. Power on all components except the ADAM module.
2. Power the ADAM module on while turning the switch to "initial" (see Figure 2-3).
3. Wait at least 7s to let the self-calibration and ranging take effect.
4. Configure the checksum status and/or baud rate.
5. Switch the ADAM module power OFF.
6. Turn the switch to Normal mode and power the module on.
7. Wait at least 7s for the self-calibration and ranging to take effect.
8. Check the settings (if the baud rate has changed, the settings on the host com-
puter should be changed accordingly).
Figure 2.4 Module Switch Set to Initial Mode
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Productinformatie
| Merk | Advantech |
| Model | ADAM-4150 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 20517 MB |
