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9. Remote Peripheral Monitoring
Overview
RPM Modules
Remote Peripheral Monitoring (RPM) measurement and control modules provide data acquisition and
control functions for a power environment. System capacity is added in a modular fashion with
measurement and control modules. Each measurement module consists of six input channels and
one temperature channel. A temperature module has seven channels to measure the temperature of
seven different points in the system. A control module provides three separate control relays. The
modules, which communicate back to the controller, are physically connected in a daisy-chain bus
configuration. The user can program various alarm and control functions with the modules when used
with a Millennium II controller.
Module Type(s) Module Code(s)
Module and Connection
Unit Kit Comcode
Control Relay
214A 108298456
Voltage (0-3Vdc)
221A 108298431
Voltage (0-16Vdc)
221B 108298498
Voltage (0-70Vdc)
221C 108469503
Voltage (0-200Vdc)
221D 108469479
Shunt
221F 108469461
Transducer
221J 108469495
Binary
222A 108298449
Temperature
223T 108274242
Table 9-A: RPM Modules and Connection Units
Current Limiting Resistors
Current limiting resistors (100K-ohm) are required for the measurement inputs of the voltage, current,
and binary modules. Comcode 847540424 current limiting resistor assemblies are available for
connections that do not already have them. All shunts (load and battery) and some voltage points
that are provided with the GPS cabinet already have current limiting resistors; check T-83314-30 for
resistor presence.
For the 214A Control Relay module, the maximum relay contact voltage is 110Vdc and maximum current
is 0.3Adc. Wiring depends on the voltage, current, local building codes, and various other
characteristics of the controlled point.
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