About the IS420UCPAH1A
The IS420UCPAH1A is a Controller Platform with Integral I/O. This module was manufactured by GE Energy for use in the Mark VIe Series. The central function of this device is to run control logic, which is also known as application code. One key feature of this module is that it can communicate with external input-output packets through a simplex IONet function due to its integral I/O capabilities.
This model is the first of the UCPA models. As the first, the IS420UCPAH1A model is equipped with a BPPCH2A processor board as well as a base IS400STWCH1A I/O board. With these features, the controller will provide the following inputs and outputs:
- two analog inputs (AIs)
- four digital inputs/outputs with feedback (DIOs)
- two hall effect pulse inputs
Depending on the I/O point used they can be configured on a per-point basis.
There are LEDs on the IS420UCPAH1A that are provided by the BPPC processor board. The DIO1 to DIO8 LEDs will be yellow to indicate that the discrete IOs are on and active at a low function; the PULSE1 and PULSE2 LEDs will also be yellow to indicate that the pulse input is on and active at a low function. There is also an attention LED, labeled ATTN, which is a red and green bi-color LED; when green the function is providing synchronization, and when red attention is being provided.
