Omega C4EIT/-EIT manual IServer Serial Page Packing Techniques

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4.5.3.3 Packing Techniques

Figure 4.8 iServer SERIAL Page – Packing Techniques

End Character – When this hexadecimal character is received by the iServer on its serial port, the iServer will forward the buffered serial data to the Ethernet.

The default value is D, which means the iServer requires no End Character to forward the data to the network.

Forward End Character – If this option is checked, the iServer will send the End Character out to the Ethernet as part of the data.

If unchecked, the iServer will not count the End Character as part of the data and will drop it. The default is unchecked.

Buffering Time – This forces the iServer to buffer the received serial data for the given time value. This option defines the time interval during which the iServer stores the serial data in its buffer before sending it out to the network.

Depending on users’ applications, this time must be at least larger than one character interval within the specified baud rate.

For example, assume that the serial port is set to 1200 bps, 8 data bits, 1 stop bit, and no parity.

In this case, the total number of bits needed to send a character is 10 bits and the time required to transfer one character is:

(10 (bits) / 1200 (bits/sec) ) * 1000 (msec/sec) = 8.3 msec. Therefore, the Buffering Time must be larger than 8.3 msec.

If the interval is set to be too long (counting the baud rate in the equation) and therefore the iServer’s buffer approaches to get full, the iServer will override the specified time and will push the data out to the network before the buffer is full.

The default is 500 milliseconds.

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Contents User’s Guide Page Table of Contents Dhcp DNSList of Figures Accessing the iServer’s Home IServer DiagnosticsAssigning an IP Address using iConnect ARP Commands and ResponsesList of Tables Data Transmission Characteristics RS485ILog Error Messages Table K-1TIP Before You BeginPart Introduction EMC ConsiderationsAccessing Devices Over the Ethernet DescriptionPhysical Characteristics and Mounting Part HardwareNetwork Communication Interface Section Serial Communication Interfaces For Models with -C4EITWiring Master/Slave Units via RS485 Interface Half Duplex Hookup Pin# ISeriesRJ-45 Pinout Connecting iServer to PC/Hub/Switch/Router Network Communication Interfaces 1 10BASE-T RJ-45 PinoutEthernet MAC Address Part Network ConfigurationNetwork Protocols IP Address DhcpDNS Example C\Telnet 192.168.1.200 Part Operations Serial Interface Configuration Communication ProtocolCommand Prefix Letters LSB MSB Default IP Address Pinging the iServer from a DOS PromptAccess and Configuration Using a Web Browser IServer LoginOverview 4a iServer -C4EIT OverviewIServer Network Network IServer Serial Page RS485 Serial Port IServer Serial Page Network to Serial IServer Serial Page Packing Techniques IServer Serial Page Multi-Host Connection 10 iServer Configuration Page Ethernet Configuration Date and Time 11 iServer Management Page Email, Snmp Management Email Snmp 12 iServer Management Page Alarm AT&T 13 iServer Security 14 iServer Device Query Device Setup -C4EIT 15 iServer Device Setup Page RS485 -C4EIT16 iServer Device Parameters Page -C4EIT 17 iServer Device Setup Page -EIT Device Parameters -EIT 18 iServer Device Parameters Page -EITReadings Readings Device SetpointsTerminal 21 iServer TerminalSystem 22 iServer SystemDiagnostics 23 iServer Diagnostics Page 4.5.12.1 Diagnostics Serial PortDiagnostics Ethernet Port Diagnostics PingPart Specifications Serial Interface -C4EITTime-Lag, IEC 127-3 recognized Network Interface Serial InterfaceMeasurement Category Electrical Safety EN61010-12001Part Transients Overvoltage Surge 1.2 / 50uS pulseAppendix Aglossary Appendix B IP Address Class B Appendix C IP NetmaskMask Dotted Notation Mask Binary Mask Bits Class a Class CDec Hex Binary Char No Parity No parity Appendix D Ascii ChartDec Hex Binary Dec Hex Ctrl Key Definition Appendix D Ascii Chart ContinuationAscii Control Codes Dec Hex Ctrl Key Definition Char EquivFigure E-1 Assigning an IP Address using iConnect Appendix E IConnect SoftwareFigure E-2 Accessing the iServer’s Home Appendix F HTTPget Program Communication interface skip for embedded ethernet -EIT\iServerhttpget -r -S *02X01\r Network read timeout \iServerhttpget -r -S *02X01\r 192.168.1.2002000Appendix G ARP Program Arp -g ﬁ Same as arp -a192.168.1.96 Admin Port Appendix H Telnet SetupISeries? Figure H-3 Telnet Setup iServer Help Figure I-1a Serial Tunneling iSeries -C4EIT Figure I-1b Serial Tunneling iSeries -EITFigure I-2 Device-to-Device Communication Remote iSeries -EIT/-C4EITLocal iSeries -EIT/-C4EIT Figure I-3 Serial Multi-Host Connection -C4EIT Tunneling Troubleshooting Appendix J IPORT IPORT, COM Port RedirectorIPORT Overview Figure J-2a Redirect Serial Connection Figure J-3 iPORT Main Window IPORT Configurations Figure K-1 iLog Software Logging Data for an iSeries Appendix K ILog SoftwareNetworked Product ILOG File Alternate Wireless DevicesTable K-1 iLog Excel Applications ISeriesTable K-2 iLog Error Messages Error # Description Page Page Page Page Page WARRANTY/DISCLAIMER Shop on line at omega.com