Futaba RS302CD - Manual (Page 29)

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Return Packets
Hdr ID Flg Adr Len Cnt Dat Sum
Memory Map No. 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
The current temperature is 002DH(45℃), which is identified by the values of No.50 and
No.51 in the return packet.
● No.52/No.53 Present Voltage （２ Byte,Hex Number,Read）
This shows the voltage that is currently used for the servo. Although the meter is
indicated in units of 10mV, there is an approximately ± 0.5V difference between voltage
sensors since each sensor has its own characteristics.
Ex.）To read the current voltage of the servo in ID=1
If you want to get the values of No.52 and No.53 in the servo’s memory map as return
packets, send the packets with the bits of 3 to 0 in the “Flags” set to
bit3=1,bit2=0,bit1=0,and bit0=1. After sending, the values for the items between No.42
and No.59 in the memory map will be sent back to you from the servo.
(Please refer to Flags on Page 11 for details.)
If you send only flags, set [COUNT] =1 with [ADRESS] =0 and [LENGTH] =0, and .
nothing should be written in ”DATA”.
Ex.）To send flags for return packets between No.42 and No.59 in the memory map.
Hdr ID Flg Adr Len Cnt Sum
Return Packet
Hdr ID Flg Adr Len Cnt Dat Sum
Memory Map No. 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
The current voltage is 02E4H (7.4V), which is identified by values of No.52 and No.53 in
the return packet.
FD DF 01 00 2A 12 A6 01 4E FB 00 00 00 00 06 00 2D 00 00 00 00 00 00 00 00 00
FA AF 01 09 00 00 01 09
FD DF 01 00 2A 12 40 01 4E FB 00 00 00 00 06 00 2D 00 E4 02 00 00 00 00 00 00