Yokogawa Removable Chassis DX1000N - Manual (Page 228)

6-2
IM 04L41B01-17E
6.2 Serial Interface Specifications
RS-232 Specifications
Connector type: D-Sub 9-pin plug
Electrical and mechanical specifications:
Conforms to the EIA-574 standard (for the 9-pin interface of the
EIA-232 (RS-232) standard)
Connection: Point-to-point
Transmission mode: Half-duplex
Synchronization: Start-stop synchronization
Baud rate: Select from 1200, 2400, 4800, 9600, 19200, and 38400 [bps].
Start bit: 1 bit (fixed)
Data length: Select 7 or 8 bits (To output data in BINARY format, be sure to
set the data length to 8 bits.)
Parity: Select odd, even, or none
Stop bit: 1 bit (fixed)
Hardware handshaking: Select whether to fix the RS and CS signals to TRUE or to use
the signal for flow control.
Software handshaking: Select whether to use the X-ON and X-OFF signals to control
the transmitted data only or both the transmitted and received
data.
X-ON (ASCII 11H), X-OFF (ASCII 13H)
Received buffer size: 2047 bytes
RS-422/485 Specifications
Terminal block type: 6 point, terminal block, terminal screws: ISO M4/nominal length
6 mm
Electrical and mechanical specifications:
Conforms to EIA-422 (RS-422) and EIA-485 (RS-485)
standards
Connection: Multidrop Four-wire type 1:32
Two-wire type 1:31
Transmission mode: Half-duplex
Synchronization: Start-stop synchronization
Baud rate: Select from 1200, 2400, 4800, 9600, 19200, and 38400 [bps].
Start bit: 1 bit (fixed)
Data length: Select 7 or 8 bits
Parity: Select odd, even, or none
Stop bit: 1 bit (fixed)
Received buffer size: 2047 bytes
Escape sequence: Open and close
Electrical characteristics: FG, SG, SDB, SDA, RDB, and RDA (six points)
SG, SDB, SDA, RDB, and RDA terminals and the internal
circuit of the DX is functionally isolated.
FG terminal is the frame ground.
Communication distance: Up to 1.2 km
Terminator:
External: recommended resistance 120 Ω, 1/2 W