Omron DDAA1000/SRM User Guide Number of Disconnects, Radio Temperature, Multi-Point Operation

Page 36

DDAA1000/SRM User Guide

Number of Disconnects

If, during the course of performing a link test, the link between the master and the remote is broken, and the radios lose carrier detect, the occurrence is recorded in the Number of Disconnects value. The value indicates the total number of disconnects that have occurred from the time the link test started until the radio was put into config mode. Under normal operating conditions, the number of disconnects should be 0. One or more disconnects may indicate a very weak link, the presence of severe interference problems or loss of DC power to the Master or Repeater if one is present.

Note: a remote and/or repeater will record a disconnect if the system master is placed into configuration mode or has power interrupted while the remote and/or repeater is linked to the master

Radio Temperature

The radio temperature value is the current operating temperature of the radio in degrees C (Celsius.) For proper operation, DDAA1000/SRM radio modems must be in the range of –400to 750 C.

Multi-Point Operation

In a multi-point system, a radio modem designated as a master is able to simultaneously be in communication with numerous remotes. In its simplest form, a multi-point network functions with the master broadcasting its messages to all remotes and the remotes responding to the master as appropriate

34	DATA-LINC GROUP

PN 161-09981-002C

rev 8/04

Image 36

Contents DDAA1000/SRM FCC Notification Product User GuideTable of Contents DATA-LINC Group Introduction DDAA1000 and DD1000Power Connector Antenna Connectoin TypeTeminal Block Discrete Operation ConnectionsPoint-to-Point Discrete Operation Master RemotePoint-to-Multipoint Discrete Operation MasterSupply loop power Analog OperationPoint-to-Point Analog System Needed. The DDAA1000 unites do notConnection of a flow meter to the DDAA1000/SRM unit Master or RemoteFactory Configuration Process Point-to-Multipoint Analog SystemPoint-to-Multipoint Analog Operation Point-to-Multipoint Analog Example RemoteChanging System or Radio Configurations Layout DrawingTechnical Specifications Troubleshooting Product Warranty Return Material AuthorizationTechnical Support Contact InformationAppendix a TOPDDAA1000 DD1000 Configuration Appendix BDATA-LINC Group Ddaa Eeprom MENU** *SET Caplck DATA-LINC Group Appendix C Radio Configuration Terminal SettingsMain Menu Main Menu Option 0 Set Operation Mode Point-to-point MasterPoint-to-Point Remote Point-to-Multi-Point MasterPoint-to-Point Remote/Master Switchable DDAA1000/SRM User Guide Point-to-Point Remote/RepeaterPoint-to-Point Repeater Point-to-Multi-Point RepeaterMain Menu Option 1 Set Baud Rate Available data word length and parity selectionsModBus RTU Main Menu Option 2 Edit Call Book Call Book MenuEdit Call Book in Multi-Point Systems Entry Number Repeater 000-0000Main Menu Option 3 Edit Radio Transmission Characteristics FreqKeyMax Packet Size and 2 Min Packet Size Selections DDAA1000/SRM User Guide Minimum Packet Size Settings bytes Maximum Packet Size Settings where RF Data Rate=3Xmit Rate RF Data RateDDAA1000/SRM User Guide RF Xmit Power Power Transmit SettingsRemote Security RTS to CTSDDAA1000/SRM User Guide Lowpower Mode High NoiseMCU speed Average Signal Level Main Menu Option 4 Show Radio StatisticsAverage Noise Level Overall Rcv Rate %Radio Temperature DDAA1000/SRM User Guide Number of DisconnectsMulti-Point Operation Main Menu Option 5 Edit Multi-Point Parameters Multi-Point ParametersDiagnostics Remote/RepeaterSubNet ID Radio IDMain Menu Option 8 Password Changing a Password Disabling PasswordDDAA1000/SRM and DD1000/SRM Placement Locations