Interface; Communication Specifications; Standards - Unipulse F701-P Operation Manual

9 RS-485 INTERFACE
9
RS-485 INTERFACE
The RS-485 interface is intended to read the indicated value and status of the F701-P and read/write
setting values with the F701-P. It is convenient for processing of control, compilation, recording,
etc., as the F701-P is connected to a PLC, programmable display, etc.
9-1.

Communication specifications

■Standards

Message format:
Signal level:
Transmission distance:
Transmission mode:
Transmission speed:
Chapter
9 Number of connectable units: Max. 32 (including one master)
Bit configuration:
Code:
54
54
RS-485 terminals RS-485 signal ground terminal
Modbus-RTU, UNI-Format
RS-485-compliant, two-wire
Approx. 1km
Asynchronous, half-duplex communication
1200, 2400, 4800, 9600, 19200, 38400bps selectable
Start bit 1 bit
Length of character 7 or 8 bits selectable
(8 bits for Modbus-RTU)
Stop bit 1 or 2 bits selectable
Parity bit None, odd, or even selectable
Binary (for Modbus-RTU)
ASCII (for UNI-Format)