1-9
XRC-195 Electronic Board Specifications
The
X
RC-195 Electronic Board (extendable Remote Controller, part number 2100355) is
designed as a general- purpose RTU motherboard that mounts in all
X
Series enclosures. It
has the same footprint as its counterpart, the
X
FC-195 Board (extendable Flow Computer
motherboard). See Figure 1–5 for XRC Board layout.
Power
Nominal 12 VDC Battery
Charger
Solar or 14-26 VDC
Memory
•
Data stored in 512K SRAM. (lithium battery backup)
•
Applications programs stored in 512K Flash.
•
Flash loader stored in 512K PROM
•
Registry and Configuration files stored in 32K E
2
PROM
•
Transducer factory calibration data stored in separate E
2
PROM
Comm. Ports
1 - dedicated – Local Configuration port used with our PCCU32
software
2 - RS232 or RS485 via Plug-In Modules
Microprocessor
High integration microcontroller with 20 bit address bus (1M), operating
at 11MHz
LCD Interface
Dedicated Interface for 2 X 24 Liquid Crystal Display (LCD)
Keypad Interface
Dedicated Interface for Optional ABB supplied Keypad Equipment
I/O Expansion
Dedicated I
2
C Serial I/O Bus for TFIO module expansion
Security Switch
On/Off Bi-level on-board Security (See Chapter 3 for details)
Time Bas
Stability
±
7.5 ppm (parts per million)
I/O Scan Rate
1 time per second
Analog Inputs
5 Single-ended Channels, 0–10VDC or 0–20ma current loop.
Analog to Digital
Resolution
•
18 Bit Maximum Resolution (0.00038% FS)
•
18 Bit Nominal Resolution (0.0015% FS)
Digital Inputs
4 -configurable as active or passive (Selectable de-bounce
enable/disable)
Pulse Inputs
2 of the above listed 4 DIs can be used as pulse inputs (DI1 and DI2)
(up to 20 KHz)
Digital Outputs
4 -Open channel FET Transistor Switches
Continued on Next Page
Summary of Contents for XRC6490
Page 1: ...2100802 001 AB TOTALFLOW XSeries Remote Controller User s Manual ...
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Page 19: ...1 5 Standard Enclosure Cont RC 6790 X Figure 1 2 Model XRC6790 Continued on Next Page ...
Page 41: ...1 27 Totalflow Input Output Modules Cont Figure 1 16 XRC6990 Inside View ...
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Page 86: ...4 12 Replacing XRC 195 Board Cont Figure 4 5 XRC Board Connections ...
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Page 112: ...5 24 12V Communication Supply Voltage Test Cont Figure 5 9 XRC 195 Communication Wiring ...
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