User Guide - Eurotherm Ltda

nanodac RECORDER/CONTROLLER: USER GUIDE4.2.4 Modbus TCPThis allows the user to configure the recorder so as to allow it to communicate using Modbus TransmissionControl Protocol.Network.ModbusPrefMaster IPAddressInput TimeoutUnit ID EnableSerial ModeTime FormatPrefMaster ConnResponse TimeMaster Conn 1Response TimeMaster Conn 2Response TimeMaster Conn 3Response TimeMaster Conn 4Response Time123.123.123.12310 secInstrumentModbus SlaveSeconds123.123.123.12300.0.0.000.0.0.000.0.0.000.0.0.00Figure 4.2.4 Modbus TCP configuration menuPrefMaster IP The IP address of the relevant Modbus master. The Preferred master is guaranteed tobe able to connect, even if all slave connections (max. = 4 for TCP) are in use.AddressThe Modbus address for this slave. This address must be unique for the network towhich it is attached. The recorder will respond to this address and to Address 255.Input Timeout Allows a value of between 0 and 3600 seconds to be entered to set the timeout periodfor modbus input channels. If a modbus input is not written to within this period the valueof the channel is set to -9999.0 with a 'No Data' status. A value of 0 disables the commsinactivity timeout feature.Unit ID Enable Enables/Disables the checking of the Modbus TCP unit identity field.Strict The Modbus TCP Unit Identity Field (UIF) does not have to match the instrumentaddress. The instrument responds only to Hex value FF in the UIF.iTools finds this instrument only at location 255, and then stops scanning.Loose The Modbus TCP Unit Identity Field (UIF) does not have to match the instrumentaddress. The instrument responds to any value in the UIFInstrument The Modbus TCP Unit Identity Field (UIF) must match the instrument addressor no response will be made to messages.Serial Mode Slave communications via the side mounted configuration port interface (CPI) clip (foriTools use.) Parameters: Baud rate 19,200; Parity = none; Number of data bits = 8;Number of stop bits = 1; no flow control. Can be set to ‘Modbus Slave’ or ‘Off’. The unitmust be restarted before any change takes effect.Time Format Allows the user to choose milliseconds, seconds, minutes or hours as the time format.Sets the resolution for the reading and writing of time format parameters.PrefMaster Conn Read only. Shows the IP address of the preferred master, when connected.Response Time Read only. Shows the response time for a single communications request to the relevantmaster.Master Conn 1 to 4 Read only. Shows the IP addresses of any other masters connected to this recorder.Page 76HA030554Issue 7 Nov 12