
A-76286E
Sheet
Title
Draw
No.
16 Apr.19.'04 Addition or Modification of 16)
15 Jul.02.'02 Y.Takeuchi Improvement of status display T.Endo
14 Jun.21.'02 Y.Takeuchi Improvement of status display T.Endo
13 May.27.'02 Y.Takeuchi Addition of status display and improvement of S/T code output T.Endo
12 Mar.18.'02 Y.Takeuchi Availability of direction change movement in auxiliary function T.Endo
11 Jan.22.'02 Y.Takeuchi Availability of Angular axis control and Advanced preview control T.Endo
10 Oct.03.'01 Y.Takeuchi Addition or Modification of "5. About function improvement" T.Endo
Ed.. Date Design Description
Date May.02.’97 Desig. K.Ishida Apprv. T.Nakazato
FANUC Series 16i/18i/21i-TB/TB
Manual Handle Retrace
Specifications
6/40
2.2 Backward movement of each code
All modal information of G, T, S-code is memorized in executing the program forward. And,
their memorized data of the modal G, T, S-code is used in executing the program backward.
As for M-codes, they are grouped and their modal information is managed by parameter
No.6411 to 6490. Therefore, M-code can be executed backward according to the information.
As for the modal information of the M-code, a change in each group is memorized in the
execution data.
As for the codes except for G, M, S, and T, the same code is output in between forward
movement and backward movement.
2.2.1 G-code
Modal information on previous block is executed when G code that changes modal
information is commanded in executing the program backward. G-code with a movement is
traced the route opposite to forward movement.
G-code that can be command in executing the program backward is as follows.
The other G-codes cannot be command in executing the program backward.
(Refer to '2.4 Backward movement prohibition')
The G-codes in the G-code system B and C are same.
2.2.2 M-code
A modal information of M-code of the previous block in M codes grouped by the parameter
setting is output.
As for M code not set at the parameter, the same one between in backward movement
and in forward movement is output.
2.2.3 S and T-code
A modal value of the previous block is output.
G00 G01 G02 G03 G04 G22 G23
G25 G26 G28 G30 G40 G41 G42
G50 G53 G65 G70 G71 G72 G73
G74 G75 G80 G83 G86 G87 G89
G90 G94 G96 G97 G98 G99
(G-code system A)
1)
1)
1)
1)
1)