Figure 15: Configuration Of Multiple Options For Certain Io Modules - GE PACSystems RX3i User Manual

Chapter 4. Configuration

Figure 15: Configuration of Multiple Options for Certain IO Modules

Configuring Discrete Modules that have DIP Switches
Some PACSystems RX3i discrete output modules have a physical DIP switch that controls the operation of
their output circuits when connection to an IO-Controller is lost. A switch selects between Force Off and Hold
Last State. This setting applies to all the module's outputs.
The module's documentation lists any additional requirements for Hold Last State to operate correctly. For
some modules, field power must be maintained on the PACSystems backplane in order for Hold Last State to
operate correctly.
If a discrete output or discrete mixed module does not have a switch or an additional configuration option
specifying its output's default action, the hardware default is to Force outputs off.
Configuring Analog Modules that have Jumpers
Some PACSystems RX3i analog modules have jumpers on their terminal strips that control the operation of
their I/O. For example, the IC69xALG220 can operate as a +10vdc to -10vdc analog input or a 4-20mA analog
input depending on a jumper setting. Similarly, the IC69xALG390 uses a jumper rather than a DIP switch to
control Force Off or Hold Last State operation.
Jumper settings are latched when the module is started, so the jumper setting cannot be altered during
operation. The RX3i CEP Carrier must be power-cycled for the new jumper setting to be re-evaluated or the
module must be removed, then hot-inserted.
40 PACSystems* RX3i CEP PROFINET Scanner GFK-2883E