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BRX Technical Training

Explore the features and capabilities of the BX-P-SER2-TERM, BX-P-SER4-TERM, BX-P-SER2-RJ12, BX-P-ECOMLT, and BX-P-USB-B POMs for the BX series PLCs. Learn about their protocols, hardware, and configuration options.

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BRX Technical Training

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  1. BRX Technical Training POMs

  2. POMs • POM = Pluggable Option Module • BX-P-SER2-TERM: RS-232 port w/terminal connection • BX-P-SER4-TERM: RS-485 port w/terminal connection • BX-P-SER2-RJ12: RS-232 port w/RJ12 connection • BX-P-ECOMLT: Ethernet Communication (light) port • BX-P-USB-B: USB Type B port • All are hot-swappable

  3. POMsBX-P-SER2-TERM • Hardware • Non-isolated RS-232 serial port • ESD protection • Surge protection • Removable connector (BX-RTB03S) • Protocols • Do-more Protocol (programming, HMIs) • Modbus RTU (client/master & server/slave) • K-sequence (server/slave only) • Custom serial (e.g. ASCII) • Max bit rate: 115K • DST50 ($InstalledPOM) = 3

  4. POMsBX-P-SER2-RJ12 • Hardware • Non-isolated RS-232 serial port • ESD protection • Surge protection • RJ12 connector • Protocols • Do-more Protocol (programming, HMIs) • Modbus RTU (client/master & server/slave) • K-sequence (server/slave only) • Custom serial (e.g. ASCII) • Max bit rate: 115K • DST50 ($InstalledPOM) = 5

  5. POMsBX-P-SER4-TERM • Hardware • Non-isolated RS-485 serial port • ESD protection • Surge protection • Removable connector (BX-RTB03S) • Switch for termination resistor • Protocols • Do-more Protocol (programming, HMIs) • Modbus RTU (client/master & server/slave) • K-sequence (server/slave only) • Custom serial (e.g. ASCII) • Max bit rate: 115K • DST50 ($InstalledPOM) = 4

  6. POMsSerial Modules • Configuration Can also setup using SETUPSER instruction

  7. POMsSerial Modules • Hot Swappable • How does the PLC react? • DST50 ($InstalledPOM) indicates which POM is installed: • 0 = Unknown POM • 1 = BX-P-USB-B • 2 = BX-P-ECOMLT • 3 = BX-P-SER2-TERM • 4 = BX-P-SER4-TERM • 5 = BX-P-SER2-RJ12 • 255 = No POM installed

  8. POMsBX-P-USB-B • Hardware • USB Type B • USB 2.0 • Protocols • Do-more Protocol (programming) • DST50 ($InstalledPOM) = 1 • Nothing to configure

  9. POMsBX-P-ECOMLT • Hardware • Isolated Ethernet port • Surge protection • Transmission rate: • 10Mbps (orange LED) • 100Mpbs (green LED) • Max 1Mpbs throughput • Protocols • Do-more protocol (server only) • Do-more Designer programming • HMI using Do-more protocol • Accepts telegrams generated by RX/WX instruction used in another Do-more’s built-in Ethernet port • DST50 ($InstalledPOM) = 2

  10. POMsBX-P-ECOMLT • Configuration The POM’s IP Configuration is normally set by NetEdit3 or SETUPIP instruction Does not alter the IP Configuration stored in the POM

  11. POMs • Instructions • ECOMLT POM • SETUPIP “Setup TCP/IP Parameters” • SETUPNOD “Setup Ethernet Node Parameters” • All serial POMs (SER2, SER4) • DEVCLEAR “Clear Device” • DEVREAD “Read Device Register” • DEVWRITE “Write Device Register” • OPENDEV “Open Device” • SETUPSER “Setup Serial Port” • STREAMIN “Stream in Data from Device” • STREAMOUT “Stream Out Data to Device” • MRX “Modbus Network Read” • MWX “Modbus Network Write” • The USB POM can only be used for programming

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