2F-85 & 2F-140 - Instruction Manual
Step 8: Read Gripper status until the opening is completed
Request is: 09 04 07 D0 00 03 B1 CE
Bits
Description
09
SlaveID
04
Function Code 04 (Read Input Registers)
07D0
Address of the first requested register
0003
Number of registers requested (3)
B1CE
Cyclic Redundancy Check (CRC)
Example of response if the opening is not completed: 09 04 06 39 00 00 00 BB 10 71 06
Bits
Description
09
SlaveID
04
Function Code 04 (Read Input Registers)
06
Number of data bytes to follow (3 registers x 2 bytes/register = 6 bytes)
3900
Content of register 07D0 (GRIPPER STATUS = 0x39, RESERVED = 0x00): gACT = 1 for "Gripper Activation", gGTO =
1 for "Go to Position Request" and gOBJ = 0 for "Fingers are in motion"
0000
Content of register 07D1 (FAULT STATUS = 0x00, POSITION REQUEST ECHO = 0x00): the position request echo
tells that the command was well received and that the GRIPPER STATUS is valid.
BB10
Content of register 07D2 (POSITION = 0xBB, FINGER CURRENT = 0x10): the position is 187/255 and the motor
current is 160mA (these values will change during motion)
7106
Cyclic Redundancy Check (CRC)
61