User manual

21
• Operating condition setting switches
• Switch for termination resistance setting (DIP switch 1)
• Switch for communication and program booting method setting
(DIP switch 2)
Pin No.
Pin
setting
Description DIP Switch 1
43
ON ON
For RS-485 communication, set both pins 3 and 4 to On if the
system is a termination station. (Enables termination for COM1
terminal)
OFF OFF
For RS-485 communication, set both pins 3 and 4 to Off if the system
is not a termination station. (Disables termination for COM1
terminal)
21
ON ON
For RS-485 communication, set both pins 1 and 2 to On if the
system is a termination station. (Enables termination for COM2
terminal)
OFF OFF
For RS-485 communication, set both pins 1 and 2 to Off if the
system is not a termination station. (Disables termination for COM2
terminal)
4
3
2
1
ON
Pin No.
Pin
setting
Description DIP Switch 2
87
OFF OFF Sets the communication speed on COM2 terminal to 9600 bps
ON OFF Sets the communication speed on COM2 terminal to 19200 bps
OFF ON Sets the communication speed on COM2 terminal to 38400 bps
ON ON Sets the communication speed on COM2 terminal to 4800 bps
65
OFF OFF Sets the communication speed on COM1 terminal to 9600 bps
ON OFF Sets the communication speed on COM1 terminal to 19200 bps
OFF ON Sets the communication speed of COM1 terminal to 38400 bps
ON ON Sets the communication speed on COM1 terminal to 4800 bps
4
ON Selects RS-485 communications for COM1
OFF Selects RS-232C communications for COM1
3
ON Selects RS-485 communications for COM2
OFF Selects RS-232C communications for COM2
2 OFF Always set to Off. (Reserved for system setting)
1
ON Loads the program from EEPROM (flash ROM) at power-on.
OFF Operates the system with the program in RAM at power-on.
8
7
6
5
4
3
2
1
ON