5-44 C30 Controller System GE Multilin5.2 PRODUCT SETUP 5 SETTINGS5Slow EGD exchanges (500 to 1000 ms) are generally used for the transfer and display of data items. The settings for thefast and slow exchanges are described below:• EXCH 1 DESTINATION: This setting specifies the destination IP address of the produced EGD exchange. This is usu-ally unicast or broadcast.• EXCH 1 DATA RATE: This setting specifies the rate at which this EGD exchange is transmitted. If the setting is 50 ms,the exchange data will be updated and sent once every 50 ms. If the setting is 1000 ms, the exchange data will beupdated and sent once per second. EGD exchange 1 has a setting range of 50 to 1000 ms. Exchanges 2 and 3 have asetting range of 500 to 1000 ms.• EXCH 1 DATA ITEM 1 to 20/50: These settings specify the data items that are part of this EGD exchange. Almost anydata from the C30 memory map can be configured to be included in an EGD exchange. The settings are the startingModbus register address for the data item in decimal format. Refer to Appendix B for the complete Modbus memorymap. Note that the Modbus memory map displays shows addresses in hexadecimal format. as such, it will be neces-sary to convert these values to decimal format before entering them as values for these setpoints.To select a data item to be part of an exchange, it is only necessary to choose the starting Modbus address of the item.That is, for items occupying more than one Modbus register (for example, 32 bit integers and floating point values),only the first Modbus address is required. The EGD exchange configured with these settings contains the data itemsup to the first setting that contains a Modbus address with no data, or 0. That is, if the first three settings contain validModbus addresses and the fourth is 0, the produced EGD exchange will contain three data items.5.2.6 MODBUS USER MAPPATH: SETTINGS PRODUCT SETUP MODBUS USER MAPThe Modbus user map provides read-only access for up to 256 registers. To obtain a memory map value, enter the desiredaddress in the ADDRESS line (converted from hex to decimal format). The corresponding value displays in the VALUE line. Avalue of “0” in subsequent register ADDRESS lines automatically returns values for the previous ADDRESS lines incrementedby “1”. An address value of “0” in the initial register means “none” and values of “0” display for all registers. DifferentADDRESS values can be entered as required in any of the register positions.5.2.7 REAL TIME CLOCKa) MAIN MENUPATH: SETTINGS PRODUCT SETUP REAL TIME CLOCK MODBUS USER MAPADDRESS 1: 0VALUE: 0Range: 0 to 65535 in steps of 1MESSAGE ADDRESS 2: 0VALUE: 0Range: 0 to 65535 in steps of 1MESSAGE ADDRESS 3: 0VALUE: 0Range: 0 to 65535 in steps of 1MESSAGE ADDRESS 256: 0VALUE: 0Range: 0 to 65535 in steps of 1 REAL TIME CLOCKSYNCRONIZING SOURCE:NoneRange: None, PP/IRIG-B/PTP/SNTP, IRIG-B/PP/PTP/SNTP, PP/PTP/IRIG-B/SNTPMESSAGE PRECISION TIME PROTOCOL (1588) See belowMESSAGE SNTP PROTOCOL See belowMESSAGE LOCAL TIME See below
