Setup System - Setup I/O Matrix; Set Up Mapping For A Digital Input; Table 30 Default Mapping Of Digital Inputs To Relays - Emerson Autochangeover Controllers AC8 User Manual

7.11

Setup System - Setup I/O Matrix

The Setup I/O Matrix menu allows you to configure the AC8's digital and analog inputs to trigger var-
ious actions in either or both of the two control relays. Each relay can be set up to respond to more
than one digital or analog input.
Almost any mapping combination can be used. For example, you may decide to trigger an action in
Control Relay 1 when Device_1 goes into alarm, or you might want to generate an action in Control
Relay 2 when Sensor_1 High Setpoint goes into alarm.
To set up the mapping of inputs to relays:
Log In and Choose Setup System
• From the Main Menu, use the arrows
Control, then press Enter
• Enter your password at the Login screen.
• From the System and Control Menu, use the arrows
Setup System, then press Enter .
Select Setup I/O Matrix
• From the Setup System Menu, shown at right, use the arrows
choose Setup I/O Matrix and press Enter .
• Use the following instructions to set up the mapping of each digital input or analog sensor input
to each relay.

7.11.1 Set Up Mapping for a Digital Input

• Use the arrows
Input/Sensor Menu, and press Enter .
• From the Select Input Menu, choose the input you want—for exam-
ple, Device_1—and press Enter .
• On the Input-to-Relay Map screen, you may map the selected input
to either or both of the control relays (1-2). The example at right
shows Device_1 mapped to Control Relay 1.
To make changes to the mapping:
• If needed, press Enter
below the relay.
• Use the arrows
N (No - Not mapped), then press Enter .
• Press Enter
to make a change.
• Use the arrows
N (No - Not mapped), then press Enter .
• When finished, press Enter
Default Mappings - Digital Inputs to Control Relays
By default, digital inputs are not mapped to any control relay, as shown
in Table 30.
Table 30 Default mapping of digital inputs to relays
Digital input
Device_1
Device_2
Device_3
Device_4
Device_5
Device_6
Device_7
Device_8
(see 7.1 - Login for help)
to choose Map Input To Relay from the Map
to advance to the position directly
to choose Y (Yes - Mapped to this relay) or
to advance to the next position where you want
to choose Y (Yes - Mapped to this relay) or
again.
By default, mapped to control relay:
(none)
(none)
(none)
(none)
(none)
(none)
(none)
(none)
73
to choose System and
to choose
System and Control Options
Setup System Menu
SETUP INPUTS
SETUP COMMON ALARM
SETUP SENSOR
=NEXT =SELECT
SETUP ZONES
SETUP OUTPUTS
SETUP MODEM&PAGERS
SETUP SYSTEM INFO
SETUP OPERATION
> SETUP I/O MATRIX
to
Map Input/Sensor Menu
> MAP INPUT TO RELAY
MAP SENSOR TO RELAY
=NEXT =SELECT
Select Input
SELECT INPUT
> DEVICE_1
DEVICE_2
=NEXT =SELECT
DEVICE_3
DEVICE_4
DEVICE_5
DEVICE_6
DEVICE_7
DEVICE_8
Input-to-Relay Map
1 CONTROL RELAY
1 2
Y N
=Y/N =NEXT/END