User`s manual

38 www.rabbit.com EM1500 Configuration
5.1.2 Aux I/O Tab
This tab reveals a screen of advanced options. The visibility of this tab is toggled by clicking on View |
Advanced.
Figure 5.3 Settings for Auxiliary I/O and SPDT Relay
Initial state:
Direction/State
This shows the initial data direction and output state of PF0-4 I/Os on boot-up. If
“SER3 uses PF0-3” is checked then only PF4 is available as an extra I/O line.
State
These parameters control the initial state of the 2 open-collector outputs of the
EM1500 on boot-up. They are set independently to “Pulled low” or “Hi-Z.”
Relay
This parameter controls the initial state of the SPDT relay on boot-up. It may be open
or closed. The relay may be used to cycle power on an attached device.
Note that the relay is non-latching. When the EM1500 is powered off the relay will
always be “open.”