YOKOGAWA ALR121-S00

Description

• • Interface: RS-422 / RS-485
  • Connection Method:
    • RS-422: Point-to-point
    • RS-485: Point-to-point or Multipoint
  • Communication Function: Half-duplex
  • Synchronization Method: Start-stop synchronization
  • Transmission Speed: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 bps
  • Transmission Code: ASCII / binary
  • Character Length: 7 / 8 bits
  • Stop Bit Length: 1 / 2 bits
  • Parity Check: None / even / odd
  • Lag Time After Data Transmission: 1 ms (lag time to start receiving data again after data transmission)
  • Transmission Distance:
    • RS-422: Max 15 m (point-to-point)
    • RS-485: Max 1200 m (total extended length, multipoint)
  • Number of Ports: 2 ports
  • I/O Wiring: AKB131, AKB132, AKB133, AKB134 cables, etc. (3-pair shielded cable: AKB161 or AKB162)
  • Wiring Connection: D-sub 9-pin (female × 2) clamped with terminal block’s M4 screws (5 poles × 2)
  • Current Consumption: 0.5 A
  • Weight: 0.3 kg
• Suffix Code Specifications:
  • S: Standard Type
  • 0: Basic Type
  • 5: With no explosion protection
  • E: With explosion protection
  • 1: With ISA Standard G3 option
• Compatible Mounting Units: Field control units (AFV10, AFV30, AFV40, AFF50), ESB bus node unit (ANB10), optical ESB bus node unit (ANB11), ER bus node unit (ANR10).
• Application Scenarios: Serial communication between Yokogawa DCS and external subsystems such as PLCs, sequencers, FA-M3 controllers, and third-party automation devices in industrial process control, power systems, and environmental monitoring.
• Installation Requirements: Mount on compatible ANB10, ANR10, AFF50, AFV10, AFV30, or AFV40 units. Use specified Yokogawa I/O wiring cables (AKB131, AKB132, AKB133, AKB134 or AKB161/AKB162 3-pair shielded cable).
• Usage Notes: Transmission speed selection depends on communication function, subsystems, and connection method. Maintain specified transmission distance limits (15 m for RS-422, 1200 m for RS-485). Ensure proper wiring connections using D-sub 9-pin female connectors or M4 screw terminal blocks.