11-2 IM 760401-01E
Serial Interface Specifications
Electrical characteristics: conforms to EIA-232 (RS-232)
Connection: point-to-point
Communications: full-duplex
Synchronization: start-stop system
Baud rate: 1200, 2400, 4800, 9600
Start bit: 1 bit
Data length (word length): 7 or 8 bits
Parity: Even, odd or no parity
Stop bit: 1 or 2 bits
Hardware handshaking: User can select whether CA, CB, CC and CD signals will always
be True, or be used for control.
Software handshaking: User can select whether to control only transmission or both
transmission and reception using X-on and X-off signals.
X-on (ASCII 11H)
X-off (ASCII 13H)
Receive buffer size: 256 bytes
WARNING
The connectors used in this function have protective covers. When the covers
are removed or when using connectors, the voltage ratings across the
measuring input and the ground become as follows:
Voltage between CURRENT, ±(VOLTAGE and CURRENT side) input
terminals and ground
400 Vrms max.
Voltage between VOLTAGE input terminal and ground
600 Vrms max.
Put the protective cover on the connector when this function is not used.
11.1 Serial Interface Functions and Specifications
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