Overview

The Yokogawa F3RZ81-0N is a ladder communication module designed for integration into Yokogawa control systems, offering a robust serial communication interface for connecting external devices.

Physical Specifications

• Electrical Specifications: Conforms to EIA RS-232-C standards
• Number of Communication Ports: 1 (non-isolated)
• Transmission Distance: 15 m max.
• Connector: D-Sub 9-pin (female)
• Current Consumption: 110 mA (5 V DC)
• Dimensions: 28.9 (W) x 100 (H) x 83.2 (D) mm
• Weight: 120 g

Function Specifications

• Connection: Point-to-point
• Communication Mode: Full-duplex/half-duplex
• Synchronization: Start-stop
• Protocol: No specific protocol
• Character Frame:
  • Character Length: 7/8 bits (Default: 8 bits)
  • Stop Bit Length: 1/1.5/2 bits (Default: 1 bit)
  • Parity Bit: None/odd/even (Default: Even)
• Transmission Rate: 75/150/300/600/1200/2400/4800/9600/19200 (Default: 4800)

Control/Checking of Control Line

• RS Control: (1) Always on, (2) On only when a message is being sent (Default: 1)
• DR Check: (1) Transmits regardless of DR state, (2) Transmits only when DR is on (Default: 1)
• CD Check: (1) Transmits regardless of CD state, (2) Transmits only when CD is off (Default: 1)
• ER Control: (1) On (ready), (2) Off (not ready) (Default: On)

Communication Buffer

• Transmitting Buffer: Can buffer one text (maximum length of 598 bytes)
• Receiving Buffer: Rotary (FIFO) buffer of 2,048 bytes

Receive Text Format

• Starting Character: Yes/no (Default: No)
• Ending Character (Terminator): Yes/no, up to two characters; any string acceptable (Default: $0D • $0A (CR-LF))
• Designation of Number of Characters: Yes, effective range: 1 to 1024 (Default: 1024)

Monitored Character-to-Character Time Interval

Configurable in 1-ms units from 1 to 32760 ms; accuracy: 10 ms (Default: 1.5 s)

XON/XOFF Control

• Control Method: (1) Uncontrolled, (2) Receiving line only, (3) Transmission line only, (4) Both (Default: Uncontrolled)
• XON Character: One-character length; any character (Default: $11 (DC1))
• XOFF Character: $13 (DC3)

I/O Monitoring

• Monitored Time Before I/O Completion: Configurable in 1-ms units from 1 to 32760 ms; accuracy: 10 ms (Default: 30 s)
• Monitored Time Before Transmission Start: Configurable (Default: Time not monitored)
• Break Transmission Interval: Configurable in 1-ms units from 1 to 32760 ms; accuracy: 10 ms (Default: 400 ms)

Interruption Mask

• End of Receiving: Interruption permitted/prohibited (Default: Prohibited)
• Receive Failure: Interruption permitted/prohibited (Default: Prohibited)
• Break Receiving: Interruption permitted/prohibited (Default: Prohibited)