Switches; Switch Operation - Emerson PACSystems RX3i Quick Start Manual

Switches

The RDSD and Run Mode switches are located behind the front protective
door. The Reset switch is not used. Switch operation is given in the
following table.

Switch Operation

RD S D Switches
Start pushbutton
Three-position switch
Upload
Off
Download
Run Mode Switch
Switch Position
Run I/O Enable
Run Output Disable
Stop
The Run Mode switch can be disabled in the programming software in Hardware
Configuration (HWC). The switch's memory protection function can be disabled
separately in HWC. The Run Mode switch is enabled by default. The memory
protection functionality is disabled by default.
4 PACSystems™ RX3i Central Processing Unit IC695CPE302
Function
Pressing this switch initiates RDSD data transfer. (The
three-position switch must be set to Upload or
Download.)
Enables/disables RDSD data transfer and selects the
direction of data transfer.
Loads application from CPU to RDSD.
Disables RDSD data transfer.
Stores application from RDSD to CPU.
A three-position switch which operates as follows:
CPU and Sweep Mode
The CPU runs with I/O sweep
enabled.
The CPU runs with outputs
disabled.
The CPU is not allowed to go
into Run mode.
Memory Protection
User program memory is
read only.
User program memory is
read only.
User program memory
can be written.
GFK-3038B