User's Manual

Overview
3A1149D 3
Overview
This Discrete Gateway Module (DGM) allows the user to
control an HFR through an external control device such
as a PLC. The DGM will operate in conjunction with the
existing Advanced Display Module (ADM) such that both
devices can be used to control the machine. Each HFR
can be controlled using up to two DGM’s which will be
referred to as the primary and secondary DGM’s.
The primary DGM allows the user to monitor and control
general machine functions. This includes the following
capabilities:
• Dispensing
• Operating mode selection
• Shot selection
• Fault code monitoring
• Fault acknowledgment
• Pump parking
• Monitoring working pressures of each pump
• Monitoring the combined flow or B (Blue) pump
pressure while dispensing
• System Stop button
• Changing the combined flow or B (Blue) pump pres-
sure in operator mode
The secondary DGM is used for monitoring and control-
ling the temperature conditioning components. These
features include:
• Monitoring which conditioning zones are enabled
• Monitoring temperatures of enabled zones
• Turning on or off the enabled zones
• Changing temperature setpoints of enabled zones
NOTE: Changing temperature setpoints is only available
on machines with 2nd generation ADMs. 2nd generation
ADMs are distinguishable by having only 2 cable con-
nections on the bottom of the ADM. 1st generation
ADMs have 4 cable connections.
DGM Presence
The DGM will broadcast a heartbeat to the HFR every
5 seconds. In the event that the DGM fails to broadcast
a heartbeat after 10 seconds, the system will go into dis-
abled mode.
The system can be taken out of disabled mode after
acknowledging the alarm on the ADM.
Automation Presence
The primary DGM includes a heartbeat monitor. This
serves as a verification that the PLC and DGM are com-
municating. In the event that the PLC becomes unre-
sponsive, the DGM will terminate any active dispenses
and set the machine to disabled mode.