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Scout PLC 12/24


The monitoring/alarm system shall be microprocessor based and have the capability to monitor 12 or 24 PLC registers via a Modbus serial connection. The system shall perform as a Modbus Master reading the user-specified registers in the PLC and assigning them to points. Each of these points shall be user-configured through the front panel as reading and writing coils and holding registers. The points shall be compared to limit conditions and if outside the conditions, but into an alarm. In addition, the monitoring/alarm system shall monitor the communication link, AC power and battery voltage continuously. Upon detecting an alarm on any of its inputs, a low battery condition or detecting loss of its AC power, the system shall begin dialing the first of up to 8 user-programmed telephone numbers.

The monitoring/alarm system shall speak user-recorded messages to the called party describing its location and the alarm conditions that are present. The monitoring/alarm system shall then verbally request that an acknowledgment be given. The called party shall acknowledge the call by momentarily depressing the '9' key on their telephone keypad.

If the system is not acknowledged during the call, it shall hang up, wait from 1 to 3600 seconds and then dial the next number in its phone list. If a successful acknowledgment occurs, the system shall give a sign-off message, allow access to program the system and hang up and then wait a user-programmed period of time for the alarm conditions to be corrected. If this period of time elapses and the alarm condition(s) still exist, the system shall begin the alarm notification cycle again.

The monitoring/alarm system shall support a relay output that shall remain energized as long as the system has any unacknowledged alarms. This output shall be available to allow for wiring to an external horn, buzzer, light or other local alarm device. Additionally, the user shall be able to remotely activate/deactivate the relay from a telephone keypad.

Physical Characteristics
EnclosureShall be flush mount or sub-panel mountable.
Environmental LimitsTemperature: 32 to 158F (0 to 70C) Humidity: 0-90% non-condensing @ 104F
Power Supply9-12VDC UL rated wall transformer included
DimensionsFront panel: 9.34"W x 7.22"H
Enclosure: 8.2"W x 5.2"H x 2.3"D
Weight1.8 lbs. (.81kg)
Electrical ProtectionSolid state surge protection provided on serial port, and telephone circuitry. All fuses shall be solid-state automatic resettable requiring no maintenance.
OptionsThe monitoring/alarm system shall have the following options: NEMA enclosure
Performance Specifications
Telephone Numbers8 numbers up to 25 digits each. Numbers may include '*', '#', delays and dial tone detection.
Recorded Speech5 seconds per input channel message and System Identification message
Monitoring CapacityEither 12 or 24 PLC registers.
System shall read/write: Holding registers, Digital input and status registers
System shall read/write: coils
Speech TechnologyDigitally recorded voice messages plus permanent library.
Message RequirementsAlarm message for power failure, low battery and individual 5-second user recorded messages for each input channel and a single 5-second user-recorded message for the system identification.
Local ProgrammingThe system shall be programmable from the front integral keypad with programming prompts displayed on the integral LCD display.
Remote ProgrammingThe system shall be remotely programmable from a phone call-in. The user shall be able to program the telephone numbers, change the channel mode between Call on Alarm and Status Only.
Remote ControlsThe system shall allow a user to activate/deactivate the optional relay remotely.
Types of AlarmsThe monitoring/alarm system shall have the following separate alarm types:
System - loss of primary power and low battery, loss of Modbus communication to the PLC
All alarms shall be recorded with date/time in the event log.
Alarm AcknowledgementThe system shall provide acknowledgement of alarms from:
the front panel,
a phone that is called with an alarm condition,
a dial-in from a remote location with appropriate access codes.
All acknowledgements will be recorded in the event log with the date/time of the acknowledgement, the method of acknowledgement.
Status ReportingA report of all current conditions of the system shall be available when the system is called. The report shall include the name of the unit and current state of all channels.
Event ReportingThe system shall have the capability of documenting all alarms, dial-out, dial-in, and alarm acknowledgement, and relay activations. The event report shall contain the last 100 events. Each event shall have the date/time of the event and the action performed.
Channel ModeEach channel shall be individually programmed for alarm notification or status only.
Alarm NotificationThe system shall be capable of notifying of alarm conditions to a phone or digital pager.
Arming and DisarmingThe system shall be capable of being armed or disarmed manually. Arming or disarming shall be recorded to the event log.
Listen InIntegral microphone shall be enabled when called enabling the user to listen in to the remote site.
Battery BackupThe system shall have internal battery back-up capacity sufficient to perform its alarm call-out function for a minimum of 12 consecutive hours upon loss of primary power.
CertificationsThe monitoring/alarm system shall meet FCC Part 15, Class B and shall have valid FCC registration number per Part 68.
ManufacturerAutomatic dialing monitor/alarm system shall be DiaLog Scout PLC, as manufactured by Antx, Inc., Austin, TX.
WarrantyTwo years of warranty shall be standard with the purchase of a new unit.