Specifications Of Communication - Hitachi 902 Service Manual

• • Specifications of Communication
Item
Communication standard
Communication parameters
Connector
Number of connectable
units
Transmission distance
• • Setting of DIP Switch
The operational status of NT20S is settable by the DIP switch at the bottom right on the rear face of
main frame.
Switch No.
Validity or invalidity of forced panel data initialization
SW2-1 ON
[OFF] NT20S starts in the usual operation mode.
Panel display language mode
SW2-2 ON
[OFF] Messages are indicated in Japanese.
Permission or prohibition of transition to system menu
SW2-3 ON
[OFF] System menu can be indicated.
Unused
SW2-4 ON
[OFF]
EIA RS-232C
Start-stop synchronization
Transmission speed
Data length
Stop bit
Parity
Flow control
9-pin D-SUB connector (female)
One to one
Max. 15 m
Function
NT20S starts in a special operation mode where only the
initialization of panel data memory is carried out. At
startup, the memory initialize menu is displayed.
Messages are indicated in English.
System menu cannot be indicated. If an error has occurred
at start, the system menu is automatically indicated, but
transition to "transmission mode" cannot be made.
Specification
: 2400, 4800, 9600 or 19200 (in bps)
: 7 or 8 bits
: 1 or 2 bits
: Even, odd or none
: RS/CS control
XON/XOFF control
None
Brackets [ ] indicate the factory setting.
15 - 16
Factory Setting
O
O
O
O