Document Outline

• Safety Precautions
• Table of contents
• Chapter 1: Features and Functions
• Chapter 2: Safety Precautions
  • 2-1 Installation
  • 2-2 Wiring
  • 2-3 Treatment
  • 2-4 Static electricity
  • 2-5 Maintenance
  • 2-6 Allocation of relay number
• Chapter 3: System Configuration
• Chapter 4: Name and Function of Each Part
• Chapter 5: Installation
• Chapter 6: Processing of Cables
  • 6-1 Processing cable end
  • 6-2 Connector crimping procedure
• Chapter 7: Wiring Method
  • 7-1 Cable trunk and branch lines
  • 7-2 Relaying of trunk cables
  • 7-3 Cable wiring procedure in control panel
  • 7-4 Waterproof and insulation processing of connectors
  • 7-5 Wiring of cables at outside control panels
  • 7-6 Check after wiring
• Chapter 8: Memory Address on the ME-NET
  • 8-1 Memory address for data links
  • 8-2 Memory addresses for computer links
• Chapter 9: Description for Data Link Operation
  • 9-1 Communication method
    • [1] Data link (Standard function)
    • [2] Data link (Save memory function)
  • 9-2 Required transmission time and communication delay time
    • [1] Required transmission time
    • [2] Communication delay time
    • [3] Data transmission between master PC and slave PC
  • 9-3 Expansion of network
    • [1] Multiple installation of the JW-21MN
    • [2] Hierarchical link
• Chapter 10: Description for Computer Link Operation
  • 10-1 Computer link function
    • [1] Basic commands
    • [2] Optional commands
  • 10-2 Basic commands
  • 10-3 Optional commands
    • [1] Read free memory size
    • [2] Monitor TMR, CNT, and MD
    • [3] Reading PC mode
    • [4] Setting PC mode
    • [5] Reading system memory
    • [6] Writing system memory
    • [7] Reading date
    • [8] Setting date
    • [9] Reading time
    • [10] Setting time
    • [11] Correct clock time
    • [12] Monitor step status: JW20/JW20H only
    • [13] Read the optional parameters
    • [14] Set the optional parameters
    • [15] Read the special I/O parameters
    • [16] Set the special I/O parameters
    • [17] Set the secret function: JW30H only
    • [18] Release the secret function, register password: JW30H only
    • [19] Check the secret function: JW30H only
    • [20] Response on error
• Chapter 11: Setting of Switches and Parameter
  • 11-1 Operation procedure
  • 11-2 Switch setting of master station and slave station
    • [1] Mode switch (MODE)
    • [2] Module No. switch (UNIT NO.)
  • 11-3 Setting contents of master station parameters
    • [1] Setting contents
    • [2] Communication area map
    • [3] Setting range of relay link area, register link area, and flag area
    • [4] Setting procedure
  • 11-4 Setting slave station parameters(common for all slave stations)
    • [1] Setting contents
    • [2] Setting range of flag area
    • [3] Setting procedure
• Chapter 12: Errors and Countermeasures
  • 12-1 Indication lamps
  • 12-2 Flag
    • [1] Flag table
    • [2] In the case of a master station
    • [3] In the case of slave station 01 to 77(8)
    • [4] Monitor operation condition by each station PC
  • 12-3 Storage of error code
• Chapter 13: Replacement of the JW-21MN
• Chapter 14: Support Tools
• Chapter 15: Specifications
  • 15-1 General specifications
  • 15-2 Communication specifications
  • 15-3 Data link specifications
  • 15-4 Computer link specifications
• Chapter 16: Appendix
  • 16-1 Maintenance and check
  • 16-2 Recovery method at communication errors
  • 16-3 Table of parameter memory
  • 16-4 Special functions unique to the JW-21MN
• Alphabetical Index