Emerson 5X00497G01

Technical Specifications:

• Ports: 2 serial ports (Port 1: RS-485, Port 2: RS-232) — configurable
• Port 1 (RS-485):
  • Protocol: Modbus RTU, Modbus ASCII, Emerson proprietary
  • Baud Rate: 1200 to 115200 bps (configurable)
  • Data Bits: 7 or 8
  • Parity: None, Even, Odd
  • Stop Bits: 1 or 2
  • Termination: 120 Ω (switchable, internal)
  • Isolation: 500 V DC (port-to-bus)
• Port 2 (RS-232):
  • Protocol: Modbus RTU, ASCII, DF1, Emerson proprietary
  • Baud Rate: 1200 to 115200 bps (configurable)
  • Data Bits: 7 or 8
  • Parity: None, Even, Odd
  • Stop Bits: 1 or 2
  • Isolation: 500 V DC (port-to-bus)
• Communication: Ovation backbone bus (redundant A/B)
• Power Supply: 5 V DC (from Ovation backplane)
• Power Consumption: 2.5 W (typical)
• Protection Class: IP20 (chassis-mounted)
• Certifications: CE, FCC, ATEX Zone 2 (optional), IEC 61508 SIL 2

Functional Features:

• Redundant A/B Bus: Automatic failover, zero data loss on bus switch
• Per-Port Configuration: Protocol, baud rate, data format configured independently
• Diagnostics: Per-port LED (green = communication OK, red = fault, off = inactive)
• Buffer Memory: 4 KB per port (transmit and receive)
• Fail-Safe Mode: Ports hold last state on communication loss

Performance Parameters:

• Operating Temperature: 0°C to +60°C
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% (non-condensing)
• Vibration Resistance: 1 g (10–500 Hz)
• Shock Resistance: 15 g (11 ms half-sine)
• MTBF: >200,000 hours (at 40°C)

Material Composition:

• Housing: Zinc die-cast alloy, black epoxy coating
• PCB: FR-4, 4-layer, conformal coated (UL94 V-0)
• Terminals: DB9 connector (RS-232), pluggable screw terminals (RS-485), tin-plated
• Connectors: Ovation backplane connector, 96-pin DIN 41612

Structural Features:

• Dimensions: 220 x 125 x 25 mm (W x H x D)
• Mounting: DIN rail (35 mm) or chassis slot (Ovation rack)
• Weight: approximately 0.40 kg
• LEDs: 2 port status LEDs + 2 bus status LEDs (A/B)

Working Principle:
Serial data received from field devices is buffered in the module’s FPGA, converted to Ovation backbone protocol, and transmitted over the redundant A/B bus to the controller. Outbound data follows the reverse path. On A bus failure, automatic switchover to B bus occurs within 10 ms.

Applicable Industries:
Power generation, oil & gas, chemical processing, water/wastewater, pulp & paper, building automation

Installation Requirements:

• Install in Ovation I/O rack (chassis slot or DIN rail)
• RS-485: use shielded twisted pair, max 1200 m at 9600 bps, termination resistor required at last device
• RS-232: use shielded cable, max 15 m (recommended)
• Ground shield at controller end only (single-point grounding)
• Do not daisy-chain RS-485 devices; use star topology

Usage Notes:

• RS-485 termination resistor (120 Ω) must be enabled on the last device in the network
• Baud rate must match all devices on the bus
• Configuration via Emerson DeltaV / Ovation Workstation software
• Replace only with Emerson 5X00497G01 or approved equivalent
• Do not connect RS-232 and RS-485 ports to the same device simultaneously