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Toshiba XLTR-200 Instruction Manual
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36Modbus Master Point AttributesFigure 16: Edit Modbus Master Attributes• Edit Address: Menu selection 1 allows you to edit the networkaddress of the Modbus slave that this point refers to.• Edit Register: Menu selection 2 allows you to edit the Modbusholding register or input register that this point will access. The type ofregister accessed (holding or input) will be determined on the basis ofthe “Read FC” setting (see below). Figure 16 shows an example ofhow to change the current setting of holding register 1 to holdingregister 50.• Read FC: Menu selection 3 allows you to choose the Modbus “read”function code that will be used to read from the designated register.The default setting of function code 03 (read holding registers) willaccess a holding register on the remote device. By selecting functioncode 04 (read input registers), a Modbus input register will beaccessed instead.• Write FC: Menu selection 4 allows you to choose the Modbus “write”function code that will be used to write to the designated holdingregister (this setting does not apply to input registers, as they areread-only). The default setting is function code 16 (preset multipleregisters). Alternatively, this setting can be changed to function code06 (preset single register) in order to connect to those Modbus slavedevices that do not support function code 16. |
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