Emerson FloBoss 107, Инструкция по эксплуатации

Страница: 12 / 152

FloBoss 107 Instruction Manual
1-6 General Information Revised June-2017
The FB107 base unit has four slots. Slot 0 is reserved for the CPU
module, which provides three communication ports, an RTD, power
input, loop power output, system variables, and optional 6 points of I/O.
Slots 1 and 2 can each contain one communication module. Slots 1, 2,
and 3 can contain input/outputs (I/O), MVS, and application modules.
1.3.1 Processor and Memory
The FB107 derives processing power from a 32-bit CMOS
microprocessor. The microprocessor features a single 32-bit internal data
bus and a single 16-bit external data bus. The microprocessor has low-
power operating modes, including inactivity and low battery condition.
The FB107 has high-speed direct memory access.
The FB107 has 2 MB of static random access memory (SRAM) for
storing database, historical, configuration, alarms, and events data.
1.3.2 Backplane
The backplane board routes signals to and from the CPU to the I/O
modules, application modules, expansion rack, the Multi-Variable Sensor,
and communication modules.
1.3.3 Expansion Rack
The four-slot optional expansion rack (see Figure 1-3 ) enables the FB107
to expand its I/O capabilities to meet your needs. The expansion rack
supports optional I/O, MVS, and application modules.
1.3.4 Central Processing Unit (CPU)
The base unit on the FB107 has four slots. Slot 0 is for the CPU module.
The CPU provides connections to the field wiring including surge and
static discharge protection for the field wiring. Electronics include the
RTD circuits and the final I/O drivers/receivers.
The CPU components include:

RTD input.

Input power.

Loop power output.

Reset (RST) switch.

System variables.

Diagnostic monitoring.

Real-time clock.

Automatic self-tests.

Power saving modes.

Local operator interface (LOI) EIA-232 (RS-232).

EIA-485 (RS-485) communications (COM1).