3-Finger Adaptive Robot Gripper Instruction Manual
BITS
DESCRIPTION
776B
Unique transaction identifier (chosen randomly)
0000
Protocol Identifier (Modbus)
0013
Length
02
SlaveID
04
Function Code 04 (Read Input Registers)
10
Number of data bytes to follow (8 registers x 2 bytes/register = 16 bytes)
39C0
Content of register 0x0000 (GRIPPER STATUS = 0x39, OBJECT
STATUS = 0xC0):
gSTA = 0 for "Gripper is in motion towards
requested position"
00FF
Content of register 0x0001 (FAULT STATUS = 0x00, POSITION
REQUEST ECHO = 0xFF): the position request echo tells that the
command was well received and that the GRIPPER STATUS is valid.
080F
Content of register 0x0002 (FINGER A POSITION = 0x08, FINGER A
CURRENT = 0x0F): the position of finger A is 8/255 and the motor
current is 150mA (these values will change during motion)
0008
Content of register 0x0003 (FINGER B POSITION REQUEST ECHO =
0x00, FINGER B POSITION = 0x08)
1000
Content of register 0x0004 (FINGER B CURRENT = 0x10, FINGER C
POSITION REQUEST ECHO = 0x00)
080F
Content of register 0x0005 (FINGER C POSITION = 0x08, FINGER C
CURRENT = 0x0F)
0089
Content of register 0x0006 (SCISSOR POSITION REQUEST ECHO =
0x00, SCISSOR POSITION = 0x89)
0000
Content of register 0x0007 (SCISSOR CURRENT = 0x00)
Example of response if the grip is completed:
77 6B 00 00 00 13 02 04 10 B9 EA 00 FF BC 00 00 C1 00 00 BD 00 00 89 00 00
where
BITS
DESCRIPTION
76B
Unique transaction identifier (chosen randomly)
0000
Protocol Identifier (Modbus)
0013
Length
02
SlaveID
04
Function Code 04 (Read Input Registers)
10
Number of data bytes to follow (8 registers x 2 bytes/register = 16 bytes)
B9EA
Content of register 0x07D0 (GRIPPER STATUS = 0xB9, OBJECT
STATUS = 0xEA):
gSTA = 2 for "Gripper is stopped. All fingers
stopped before requested position", gDTA = gDTB = gDTC = 2
for "Finger X has stopped due to a contact while closing"
00FF
Content of register 0x07D1 (FAULT STATUS = 0x00, POSITION
REQUEST ECHO = 0xFF): the position request echo tells that the
command was well received and that the GRIPPER STATUS is valid.
BC00
Content of register 0x07D2 (FINGER A POSITION = 0xBC, FINGER A
CURRENT = 0x00): the position of finger A is 188/255 and the motor
current is 0mA
00C1
Content of register 0x07D3 (FINGER B POSITION REQUEST ECHO =
0x00, FINGER B POSITION = 0xC1)
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