Chapter 4. Specifications
62 DigitalFlow™ XMT868i Startup Guide
4.2.4 Input/Output
Digital Display:
2-line x 16-character LCD display, LED backlight, configurable to display up to 4 measurement parameters in
sequence, or to scroll through measurement parameters
Digital Communications:
Standard: RS232 serial port for PC, terminal or printer
Optional: RS485 serial port for multi-user network
RS485 MODBUS communication
MODBUS/TCP
OPC Server
Ethernet
Foundation Fieldbus
Analog Outputs (built-in):
Standard: Two isolated 0/4–20 mA, 600 Ω max. load
Option Cards:
Optional Inputs/Outputs of the following types may be added:
• Analog Inputs: two isolated 0/4-20 mA inputs, 24-V loop power
• RTD Inputs: two isolated 3-wire RTD inputs;
Span –148° to 662°F (–100° to 350°C), 100 Ω Pt, Alpha 385
• Analog Outputs: two isolated 0/4–20 mA analog outputs, 1000 Ω maximum load
• Data Logging: 128 kB or 2 MB memory
• Totalizer or Frequency Outputs: two or four optically isolated pulse or frequency outputs,
100 VDC/3 A/1 W/10 kHz max.
Totalizer Mode: one pulse per defined unit of parameter (e.g., 1 pulse/gal)
Frequency Mode: pulse frequency proportional to magnitude of parameter (e.g., 10 Hz = 1 gal/min)
• Alarm Relays: two or four Form-C relays
General Purpose: 120 VAC, 28 VDC max., 5 A max., DC: 30 W max., AC: 60 VA max.
Note: The above optional inputs/outputs are available only in specific combinations. Consult GE or see Table 22 on
page 69 for details.
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