4.4 How to Use File Transfer4-454.4.3.3 Information Acquisition of Ethernet Unit (ETSTAT)Reads information of Ethernet unit. Instruction format“FTPc”S1R0ETSTAT “IDALL”S2DT0D Operation unit (i)• There is no operation unit. List of operandsOperand DescriptionS1 Specify the type to be read with the starting address or a character constant.S2 Specify the target to be read with the starting address or a character constant.D Specify the starting address of destination. Available Devices (●: Available)Operand16-bit device 32-bitdevice IntegerRealnum-berString IndexmodifierWX WY WR WL WS SD DT LD UM WI WO TSCSTECE IX K U H SF DF " "S1 ● ● ● ● ● ● ●S2 ● ● ● ● ● ● ●D ● ● ● ● ● ● Processing• Reads the parameter information or status information specified by [S1] and [S2], and storesit in the area starting with [D].• The number of words in the storage area varies according to the type of read data and thetarget. Precautions during programming• When specifying a device for an operand in which character constant can be specified, setstring data beforehand with SSET instruction.• When specifying string data, the number of characters should not execeed 256.• Upper and lower case characters can be used for operands which character constant can bespecified.("Abcd", "ABCD" and "abcd" are synonymous, however, the file names are differentiated.)• A target unit for the instruction is specified with UNITSEL beforehand.• This instruction is not available in interrupt programs.