Honeywell HC900 Benutzerhandbuch

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Communications Installation - Connecting the HC900 Controller to a PC with the Hybrid Control Designer Software 
Revision 5 
  HC900 Hybrid Controller Installation and User Guide 
95 
9/03  
Modem configuration examples 
Below are procedures for setting up the following commercially available modems: 
• 
3Com US Robotics 56K Data/Fax External Modem 
• 
Zoom 56K Dualmode External Modem 
• 
Best Data 56SX Data Fax External Modem 
• 
SixNet VT-MODEM Industrial External Modem 
3Com US Robotics 56K Data/Fax External Modem 
 
Step Action 
Ensure that the switches are set to the factory settings: 
 
Switch Setting  Position  Function 
OFF 
UP 
Normal DTR operations 
OFF 
UP 
Verbal (word) results 
ON 
DOWN 
Enable result codes 
OFF 
UP 
Displays keyboard commands 
ON 
DOWN 
Disables auto answer 
6 OFF 
UP  Modem sends CD signal when it connects with another 
modem 
7 OFF 
UP  Loads Y0-Y4 configuration from user-defined 
nonvolatile memory (NVRAM) 
ON 
DOWN 
Enables recognition (smart mode) 
 
 
Connect the modem to a PC. If your computer’s RS-232 port has a 25-pin connector, use a 
DB-25 male to DB-25 female RS-232 cable. If your computer’s RS-232 port has a 9-pin 
connector, use a DB-25 male to DB-9 female modem cable. 
Power-up the modem. 
Run a serial communication port program such as Hyperterminal. 
Within the communication program, select the port to which the modem is connected. 
Configure the port to these settings: 
baud rate = 9600, 19200, 38400, 57600 (Must match Baud Rate configured in HC900 
Controller) 
data bits = 8 
parity = none 
stop bits = 1 
flow control = none 
In the program's terminal window, restore factory defaults by keying-in the following command 
string: 
AT &F0
 
Then, press the ENTER key. 
The modem should respond with OK.